Sem-2 Finals DE Bio 100

Last updated 4 months ago

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Library

Sem-2 Finals DE Bio 100

Last updated 4 months ago

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What is the amino acid sequence for the following sequence? T A C G C C A G T

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Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)
AATGCTACTCTT

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In guinea pigs, black hair (B) is dominant to brown hair (b) and short hair (H) is dominant to long hair (h). A heterozygous black, long-haired guinea pig is crossed with a brown, homozygous short-haired guinea pig . How many offspring will be-
a) black with long hair
b) brown with short hair?
(Show with the help of a Punnett square)

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What is true of the parent cell and daughter cells in mitosis? Why is this significant?

They both have same number of chromosomes. It is significant as it keep organisms alive

They both have different number of chromosomes. It is significant as the differences in number of chromosomes will make humans unique

They both have different number of chromosomes. It is significant as it helps to keep the chromosomes number different.

They both have same number of chromosomes. It is significant as it helps to keep the chromosomes number same through out the generations.

They both have different number of chromosomes. It is significant as the this will make humans in different parts of the world different.

These two structures come together to make a chromosome-

A cell that has 46 chromosomes undergoes mitosis. Which of the following is true?

two daughter cells will be created, each have 23 chromosomes

2 daughter cells will be created, each having half the number of chromosomes

4 daughter cells will be created, each having 10 chromosomes

4 daughter cells will be created, each having 23 chromosomes

two daughter cells will be created, each have 46 chromosomes

Categorize the following images or descriptions to the correct phase. There could be a chance where a phase might not have any matching description and could be left blank in that case.

Nuclear membrane and nucleolus reappears
Item 1
Replication of DNA takes place here.
Centrioles start to move towards the opposite poles.
The sister chromatids are pulled by the spindle fibers and move away.
Cells increase in size to accommodate more organelles and DNA.

Interphase
Prophase
Metaphase
Anaphase
Telophase

A scientist has discovered a mutation (sudden change) that prevents cells from passing to anaphase of mitosis. Of the following options, which is the most likely to happen?

No impact will be seen on the cell

the chromatin will not form chromosomes

Unequal/no chromosome will be seen in the two daughter cells formed at the end

the cell will form 4 daughter cells instead of 2

the centrioles will not be formed

Which of the following statements about mitosis is NOT correct?

Mitosis is cell division that produces four daughter cells.

Each daughter cell formed by mitosis has the same number of chromosomes as the parent cell.

During mitosis, the centriole divide and move apart to form spindle

The parent cell and the daughter cells are genetically identical.

Mitosis is cell division that produces two daughter cells.

One of these events does not take place during meiosis-

Separation of sister chromatids that are recombinant.

Production of genetically identical daughter cells.

Homologous pair separating 

Crossing over

Synapsis-pairing up of homologous chromosome

Name the event wherein the paternal and maternal chromosomes change their material or exchange the parts with each other in cell division-

Match the stages with their characteristics-

Draggable item		Corresponding Item
Sister chromatids of recombinant chromosomes separate and move towards poles		Prophase-I
Cytoplasm divides and separates the two daughter cells		Anaphase-I
Pairing up of the homologous chromosomes		Cytokinesis
Homologous chromosomes separates and moves apart		Anaphase-II

Drag and drop the description to the category that it belongs to.

Centrioles move towards the poles.
Nucleolus and nuclear membrane disappear.
Two daughter cells with haploid number of chromosomes is formed.
Homologous chromosomes (pair) align at the equator.
Four daughter cells with haploid number of chromosomes is formed.
Crossing over occurs here.

Meiosis-I
Meiosis-II
Both Meiosis-I and Meiosis-II

Match the image with the correct phase name-

The number of chromosomes in muscle cells of a rat are 42. What will be the number of chromosomes in its gametes.

Haploid gametes have ......# of chromosomes whereas Diploid cells have .....# of chromosomes

Why is crossing-over important?

It creates homologous chromosomes

It creates new cells identical to parents

It completes prophase of meiosis I

It creates identical gametes

It creates more genetically unique gametes

The percentage of cytosine in a DNA molecule is 20%. What will be the total percentage of Adenine. (Use Chargaff's rule)

According to the genetic code, what is coded by codon CAA?

Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)
AATGCTACTCTT

Transcription occurs in the ................. part of the cell

The DNA has sequences that code for RNA and there are some that do not code for RNA.
The sequences that are meaningful and code for RNA are called ......and the ones that are meaningless and does not code for RNA are called.......

Use the Image below to match the columns

In DNA replication, DNA "unwinds" to form two template strands: the leading strand and the lagging strand.
Which of the following statements about these strands is TRUE?

DNA polymerase can only synthesize DNA on the leading strand.

The entire DNA is unwound with a single Helicase enzyme.

Okazaki fragments are used to synthesize the leading strand of DNA.

The leading strand is discontinuous

The leading strand of DNA is synthesized continuously.

The functions of the DNA polymerase enzyme is/are (Check all that apply)

To join the okazaki fragments

Add complementary nucleotides to leading strand

Add more nucleotides after removal of the RNA Primer

Add a RNA primer

Unwind the helix

A codon has ....... number of nucleotides.

The chemical bond between two amino acids is called-

If a man has blood type O and his wife has blood type AB, what blood types are possible among their children?

If a type heterozygous A man marries a heterozygous type B woman, what blood types could occur in their children? Select all that are possible.

A

AB

O

B

In radishes, red (R) and white (W) are pure-breeding colors, while hybrids are purple (RW). If a red radish is crossed with a purple radish, what will be the phenotype of the offspring? Show the Punnett Square and percentage of each phenotype.

In Andalusian fowls, black individuals (B) and white individuals (W) are homozygous. A homozygous black bird is crossed with a homozygous white bird. The offspring are all purple (BW). Predict the ratio of Black: White: Purple when Purple fowls and crossed with black.

Black: White: Purple:: 2:0:2

Black: White: Purple:: 0:2:2

Black: White: Purple:: 2:1:1

Black: White: Purple:: 1:2:1

Match the example on the right as either incomplete dominance or codominance or neither.

roan cattle have red and white hairs mixed
purple x white --> purple flowers
red roses x white roses --> pink
more men than women are hemophiliacs
black x white chickens --> Black and white speckled (Erminette)
curly x straight --> wavy hair

Incomplete Dominance
Codominance
Neither

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

RR or Rr

In guinea pigs, black hair (B) is dominant to brown hair (b) and short hair (H) is dominant to long hair (h). A heterozygous black, long-haired guinea pig is crossed with a brown, homozygous short-haired guinea pig . How many offspring will be-
a) black with long hair
b) brown with short hair?
(Show with the help of a Punnett square)

What is true of the parent cell and daughter cells in mitosis?  Why is this significant?

They both have same number of chromosomes. It is significant as it keep organisms alive

They both have different number of chromosomes. It is significant as the differences in number of chromosomes will make humans unique

They both have different number of chromosomes. It is significant as it helps to keep the chromosomes number different.

They both have same number of chromosomes. It is significant as it helps to keep the chromosomes number same through out the generations.

They both have different number of chromosomes. It is significant as the this will make humans in different parts of the world different.

These two structures come together to make a chromosome-

chromatin

centromere

chromatids

centrioles

poles

A cell that has 46 chromosomes undergoes mitosis. Which of the following is true?

two daughter cells will be created, each have 23 chromosomes

2 daughter cells will be created, each having half the number of chromosomes

4 daughter cells will be created, each having 10 chromosomes

4 daughter cells will be created, each having 23 chromosomes

two daughter cells will be created, each have 46 chromosomes

Categorize the following images or descriptions to the correct phase. There could be a chance where a phase might not have any matching description and could be left blank in that case.

Nuclear membrane and nucleolus reappears

Item 1

Replication of DNA takes place here.

Centrioles start to move towards the opposite poles.

The sister chromatids are pulled by the spindle fibers and move away.

Cells increase in size to accommodate more organelles and DNA.

Interphase

Prophase

Metaphase

Anaphase 

Telophase

A scientist has discovered a mutation (sudden change) that prevents cells from passing to anaphase of mitosis. Of the following options, which is the most likely to happen?

No impact will be seen on the cell

the chromatin will not form chromosomes

Unequal/no chromosome will be seen in the two daughter cells formed at the end

the cell will form 4 daughter cells instead of 2

the centrioles will not be formed

Which of the following statements about mitosis is NOT correct?

Mitosis is cell division that produces four daughter cells.

Each daughter cell formed by mitosis has the same number of chromosomes as the parent cell.

During mitosis, the centriole divide and move apart to form spindle

The parent cell and the daughter cells are genetically identical.

Mitosis is cell division that produces two daughter cells.

One of these events does not take place during meiosis-

Separation of sister chromatids that are recombinant.

Production of genetically identical daughter cells.

Homologous pair separating 

Crossing over

Synapsis-pairing up of homologous chromosome

Name the event wherein the paternal and maternal chromosomes change their material or exchange the parts with each other in cell division-

Centrosomes

Crossing over

Tetrad

Synapsis

Homologous chromosome

Match the stages with their characteristics-

Sister chromatids of recombinant chromosomes separate and move towards poles

Prophase-I

Cytoplasm divides and separates the two daughter cells

Anaphase-I

Pairing up of the homologous chromosomes

Cytokinesis

Homologous chromosomes separates and moves apart

Anaphase-II

Drag and drop the description to the category that it belongs to.

Centrioles move towards the poles.

Nucleolus and nuclear membrane disappear.

Two daughter cells with haploid number of chromosomes is formed.

Homologous chromosomes (pair) align at the equator.

Four daughter cells with haploid number of chromosomes is formed.

Crossing over occurs here.

Meiosis-I

Meiosis-II

Both Meiosis-I and Meiosis-II

Match the image with the correct phase name-

Anaphase-I

Anaphase-II

Metaphase-I

Crossing Over

The number of chromosomes in muscle cells of a rat are 42. What will be the number of chromosomes in its gametes.

84

21

12

24

42

Haploid gametes have ......# of chromosomes whereas Diploid cells have .....# of chromosomes

Half (n), 2 sets (2n)

2 sets (2n), Half (n)

2 sets(2n), 2sets (2n)

4 sets , Half 

4 sets (6n), 2 sets (3n)

Why is crossing-over important?

It creates homologous chromosomes

It creates new cells identical to parents

It completes prophase of meiosis I

It creates identical gametes

It creates more genetically unique gametes

The percentage of cytosine in a DNA molecule is 20%. What will be the total percentage of Adenine. (Use Chargaff's rule)

15%

40%

30%

35%

20%

According to the genetic code, what is coded by codon CAA?

Histidine

Glutamine

Tyrosine

Valine

Threonine

Transcription occurs in the ................. part of the cell

Ribosome

Cytoplasm

Mitochondria

Golgi bodies

Nucleus

The DNA has sequences that code for RNA and there are some that do not code for RNA.
 The sequences that are meaningful and code for RNA are called ......and the ones that are meaningless and does not code for RNA are called.......

Introns, Exons

Exons, Introns

Transcription, Translation

Translation, Transcription

mRNA, tRNA

Use the Image below to match the columns

Template Strand

Coding Strand

5'

3'

DNA Polymerase

A

D

C

In DNA replication, DNA "unwinds" to form two template strands: the leading strand and the lagging strand.
Which of the following statements about these strands is TRUE?

DNA polymerase can only synthesize DNA on the leading strand.

The entire DNA is unwound with a single Helicase enzyme.

Okazaki fragments are used to synthesize the leading strand of DNA.

The leading strand is discontinuous

The leading strand of DNA is synthesized continuously.

The functions of the DNA polymerase enzyme is/are (Check all that apply)

To join the okazaki fragments

Add complementary nucleotides to leading strand

Add more nucleotides after removal of the RNA Primer

Add a RNA primer

Unwind the helix

A codon has ....... number of nucleotides.

4

2

3

5

1

The chemical bond between two amino acids is called-

ionic bond

peptide bond

Hydrogen bond

electrovalent bond

Covalent bond

If a man has blood type O and his wife has blood type AB, what blood types are possible among their children?

Heterozygous O only

A only

B only

A and B 

Pure O

If a type heterozygous A man marries a  heterozygous type B woman, what blood types could occur in their children? Select all that are possible.

A

AB

O

B

In radishes, red (R) and white (W) are pure-breeding colors, while hybrids are purple (RW).  If a red radish is crossed with a purple radish, what will be the phenotype of the offspring? Show the Punnett Square and percentage of each phenotype.

50% White 50% Red

50% purple 50% Red

25% purple 75% Red

25% Red 75% Purple

50% purple 50% White

In Andalusian fowls, black individuals (B) and white individuals (W) are homozygous. A homozygous black bird is crossed with a homozygous white bird. The offspring are all purple (BW). Predict the ratio of Black: White: Purple when Purple fowls and crossed with black. 

Black: White: Purple:: 2:0:2

Black: White: Purple:: 0:2:2

Black: White: Purple:: 2:1:1

Black: White: Purple:: 1:2:1

Match the example on the right as either incomplete dominance or codominance or neither.

roan cattle have red and white hairs mixed

purple x white --> purple flowers

red roses x white roses --> pink

more men than women are hemophiliacs

black x white chickens --> Black and white speckled (Erminette)

curly x straight --> wavy hair

Incomplete Dominance

Codominance

Neither

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

RR or Rr

R

RR

rr

In buffalo, being boring (B) is dominant to being busy (b). A true-breeding, busy male is crossed with a true-breeding/pure, boring female.
What are the possible genotypes of their offspring?

BB, Bb, and bb

Only Bb

BB and bb

Only BB

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a). A mother with the genotype Aa and a father with the genotype Aa produce an offspring. What is the percent chance that the offspring will have NO belly fur?

25%

0%

75%

100%

50%

B = brown eyes
b = blue eyes
One brother has genotype BB and the other brother has genotype Bb.
Which statement is true about these two brothers?

They have same phenotype and genotype

They have different phenotypes and genotypes

They have same phenotype, but different genotypes

They are both with different phenotypes and are example of dihybrid cross

They have different phenotypes, but the same genotype

Which of the following methods will provide information to an ecologist about both the size and density of a population?

survivorship curves

logistic

quadrat

Exponential

What type of growth curve is shown below-

Exponential

Logistic

boom and bust

J-shaped

On the graph "M" represents the ........which is ...........

Carrying capacity, the j shaped growth curve of a species

exponential growth, the number of organisms that can interbreed

carrying capacity, the number of organisms that can interbreed

survivorship, maximum number of species that environment can support

carrying capacity, maximum number of species that environment can support

Large number of small off springs that are adapted to unstable and unpredictable environments are-

K-selected species

pioneer species

r-selected species

climax species

Match the type of interaction with its example.

Predation

Commensalism

Parasitism

Mutualism

Barnacles on Whales

Mosquito biting humans

Bee and flower

Snake eating Frog

Egret bird feeding on insects at back of cattle

According the image below Canada's population is showing _______________ type of growth

stable

slow

rapid

decline

What does C in the secondary succession image below called-

Pioneer species

Intermediate community

Lichens

Climax community

Of the following, which is NOT part of Darwin's theory of natural selection?

Living things tend to produce more offspring than can survive.

Suitable variations in a population tend to be passed on while unsuitable variations in a population are not.

Individuals with variations suitable to their environment have shorter lifespans and produce fewer offspring.

Variations in a population exist and those variations are inherited.

What mechanism of evolution is shown below-

Sexual selection

Natural selection

Gene flow

Mutation 

In which theory of speciation does a new species emerge from within the geographic range of its ancestor?

Sympatric speciation

Natural Population

Parapatric speciation

Allopatric speciation

Some organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales.

They are homologous.

They are analogous.

They are embryological.

They are vestigial.

How do fossils support evolution?

The fossil record provides evidence that all organisms developed at the same time

Organisms in the fossil record are the ones that are currently living .

The fossil record provides evidence that organisms have changed over time.

Individual species disappear and reappear in the fossil record over time.

Organisms in the fossil record are identical to living organisms.

Which of the following is an example of a vestigial structure?

the hind limbs of a house cat

the wings of a red-tailed hawk

the tailbone of a human

the fins of sharks

This system contains the largest organ of the body.

Digestive

Integumentary

Cardiovascular

Reproductive

The proteins are broken down to produce ..........waste which is removed by .........system

Gaseous, Endocrine

Solid, Excretory

Nitrogenous, Excretory

Gaseous, Digestive

Nitrogenous, Digestive

Heart is a/an ........in the circulatory system that helps in ...........

Cell, Pumping Lymph in the body

Tissue, Pumping the oxygenated blood in the body.

Organ, Pumping the oxygenated blood in the body.

Organ system, Pumping the oxygenated blood in the body.

Tissue, Exchanging oxygen and carbon dioxide in the body

The structures found in the small intestines that helps in increasing the surface area for absorption are-

Involuntary muscle tissue

Villi and microvilli

Hormones

Nerves

Enzymes

Emilio was teaching his friend Trinity about the structures that are helpful in exchanging the gasses in animal body. He taught one thing that was incorrect about gaseous exchange. Based on your understanding identify which out of the following is INCORRECT about gaseous exchange that he taught his friend.

The blood capillaries are helpful in the gaseous exchange.

The alveoli are made up of stratified columnar epithelial cells to support gaseous exchange.

Exchange takes place in the Lungs and alveoli helps in exchange of gasses.

The alveoli are thin walled and thus helps in exchange.

The gasses are exchanged in the lungs are Oxygen and carbon dioxide.

Following are the roles/functions of the cells (Check all that apply)

Removing excess of water and salts from body

Providing support and strength

Helping in reproduction

Allowing transport of substances

Producing gametes/sex cells

The neurons are the longest cells in an animal's body. They help in-

Passing electric nerve impulses

Storing fat

Carrying Oxygen to all parts of our body

Providing motility/ mobility for quick movement of cell.

Name the stage shown in the image alongside-

Metaphase

Anaphase

Cytokinesis

Prophase

Telophase

What made you choose your answer in the previous question?

The cell membrane remains intact.

The centrioles are forming the spindle fibers.

The chromosomes are attaching to the spindle fibers and lining up in the  middle of the cell.

The chromosomes are being pulled toward opposite sides of the cell.

Centrioles are moving back to form Centrosome

Identify the image alongside.

Metaphase-I

Anaphase-I

Metaphase-II

Anaphase-II

Prophase-I

The reason for the choice of your answer in previous question is-

Sister chromatids are separating.

Sister chromatids are aligned at the equator.

Homologous chromosomes are at the equator.

Homologous chromosomes are showing crossing over.

Homologous chromosomes are separating.

Provide the mRNA strand to this             DNA sequence:  T A C G C C A G T 

A T G C G G T C A

A U G T T G U C C

A A C G C C A G U

A U G C G G U C A

T A C G C C A G T

Sem-2 Finals DE Bio 100

Sem-2 Finals DE Bio 100

What is the amino acid sequence for the following sequence? T A C G C C A G T

Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)AATGCTACTCTT

What is true of the parent cell and daughter cells in mitosis? Why is this significant?

These two structures come together to make a chromosome-

A cell that has 46 chromosomes undergoes mitosis. Which of the following is true?

Categorize the following images or descriptions to the correct phase. There could be a chance where a phase might not have any matching description and could be left blank in that case.

A scientist has discovered a mutation (sudden change) that prevents cells from passing to anaphase of mitosis. Of the following options, which is the most likely to happen?

Which of the following statements about mitosis is NOT correct?

One of these events does not take place during meiosis-

Name the event wherein the paternal and maternal chromosomes change their material or exchange the parts with each other in cell division-

Match the stages with their characteristics-

Drag and drop the description to the category that it belongs to.

Match the image with the correct phase name-

The number of chromosomes in muscle cells of a rat are 42. What will be the number of chromosomes in its gametes.

Haploid gametes have ......# of chromosomes whereas Diploid cells have .....# of chromosomes

Why is crossing-over important?

The percentage of cytosine in a DNA molecule is 20%. What will be the total percentage of Adenine. (Use Chargaff's rule)

What is the amino acid sequence for the following sequence? T A C G C C A G T

According to the genetic code, what is coded by codon CAA?

Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)AATGCTACTCTT

Transcription occurs in the ................. part of the cell

The DNA has sequences that code for RNA and there are some that do not code for RNA. The sequences that are meaningful and code for RNA are called ......and the ones that are meaningless and does not code for RNA are called.......

Use the Image below to match the columns

In DNA replication, DNA "unwinds" to form two template strands: the leading strand and the lagging strand.Which of the following statements about these strands is TRUE?

The functions of the DNA polymerase enzyme is/are (Check all that apply)

A codon has ....... number of nucleotides.

The chemical bond between two amino acids is called-

If a man has blood type O and his wife has blood type AB, what blood types are possible among their children?

If a type heterozygous A man marries a heterozygous type B woman, what blood types could occur in their children? Select all that are possible.

In radishes, red (R) and white (W) are pure-breeding colors, while hybrids are purple (RW). If a red radish is crossed with a purple radish, what will be the phenotype of the offspring? Show the Punnett Square and percentage of each phenotype.

In Andalusian fowls, black individuals (B) and white individuals (W) are homozygous. A homozygous black bird is crossed with a homozygous white bird. The offspring are all purple (BW). Predict the ratio of Black: White: Purple when Purple fowls and crossed with black.

Match the example on the right as either incomplete dominance or codominance or neither.

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)
AATGCTACTCTT

Write the complementary mRNA base sequence to the following... (Type in all caps and no spaces)
AATGCTACTCTT

The DNA has sequences that code for RNA and there are some that do not code for RNA.
The sequences that are meaningful and code for RNA are called ......and the ones that are meaningless and does not code for RNA are called.......

In DNA replication, DNA "unwinds" to form two template strands: the leading strand and the lagging strand.
Which of the following statements about these strands is TRUE?