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Sem-2 Finals DE Bio 100

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Last updated about 2 months ago
60 questions
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Question 1
1.

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

Question 2
2.

These two structures come together to make a chromosome-

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Question 5
5.

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

Question 6
6.

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.

Question 7
7.

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?

Question 8
8.

Which of the following statements about mitosis is NOT correct?

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Question 11
11.

One of these events does not take place during meiosis-

Question 12
12.

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

Question 13
13.

Match the stages with their characteristics-

Draggable itemarrow_right_altCorresponding Item
Pairing up of the homologous chromosomes
arrow_right_alt
Prophase-I
Sister chromatids of recombinant chromosomes separate and move towards poles
arrow_right_alt
Anaphase-I
Homologous chromosomes separates and moves apart
arrow_right_alt
arrow_right_alt
Question 14
14.

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

  • Homologous chromosomes (pair) align at the equator.
  • Four daughter cells with haploid number of chromosomes is formed.
  • Crossing over occurs here.
  • Two daughter cells with haploid number of chromosomes is formed.
Question 15
15.

Question 16
16.

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

Question 17
17.

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

Question 18
18.

Why is crossing-over important?

Question 19
19.

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

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Question 21
21.

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

Question 22
22.

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

Question 23
23.

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

Question 24
24.

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

Question 25
25.

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.......

Question 26
26.

Question 27
27.

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?

Question 28
28.

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

Question 29
29.

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

Question 30
30.

The chemical bond between two amino acids is called-

Question 31
31.

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

Question 32
32.

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.

Question 33
33.

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.

Question 34
34.

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.

Question 35
35.

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

  • curly x straight --> wavy hair
  • red roses x white roses --> pink
  • roan cattle have red and white hairs mixed
Question 36
36.

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?

Question 37
37.

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?

Question 38
38.

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?

Question 39
39.

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?

Question 40
40.

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)

Question 41
41.

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

Question 42
42.

What type of growth curve is shown below-

Question 43
43.

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

Question 44
44.

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

Question 45
45.

Question 46
46.

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

Question 47
47.

What does C in the secondary succession image below called-

Question 48
48.

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

Question 49
49.

What mechanism of evolution is shown below-

Question 50
50.

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

Question 51
51.

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

Question 52
52.

How do fossils support evolution?

Question 53
53.

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

Question 54
54.

This system contains the largest organ of the body.

Question 55
55.

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

Question 56
56.

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

Question 57
57.

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

Question 58
58.

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.

Question 59
59.

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

Question 60
60.

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

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.
centrioles
poles
Question 3
3.

Name the stage shown in the image alongside-

Question 4
4.

What made you choose your answer in the previous question?

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
Centrioles start to move towards the opposite poles.
The sister chromatids are pulled by the spindle fibers and move away.
Nuclear membrane and nucleolus reappears
Cells increase in size to accommodate more organelles and DNA.
Item 1
Replication of DNA takes place here.
Interphase
Prophase
Metaphase
Anaphase
Telophase
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
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.
Question 9
9.

Identify the image alongside.

Question 10
10.

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

Homologous pair separating
Crossing over
Synapsis-pairing up of homologous chromosome
Synapsis
Homologous chromosome
Cytokinesis
Cytoplasm divides and separates the two daughter cells
Anaphase-II
Centrioles move towards the poles.
Nucleolus and nuclear membrane disappear.
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
24
42
4 sets , Half
4 sets (6n), 2 sets (3n)
It creates identical gametes
It creates more genetically unique gametes
35%
20%
Question 20
20.

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

Tyrosine
Valine
Threonine
Golgi bodies
Nucleus
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
Okazaki fragments are used to synthesize the leading strand of DNA.
The leading strand is discontinuous
The leading strand of DNA is synthesized continuously.
Add more nucleotides after removal of the RNA Primer
Add a RNA primer
Unwind the helix
5
1
electrovalent bond
Covalent bond
A and B
Pure O
50% purple 50% Red
25% purple 75% Red
25% Red 75% Purple
50% purple 50% White
purple x white --> purple flowers

more men than women are hemophiliacs
black x white chickens --> Black and white speckled (Erminette)
Incomplete Dominance
Codominance
Neither
rr
Only BB
0%
75%
100%
50%
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
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
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
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.
Gaseous, Digestive
Nitrogenous, Digestive
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
Nerves
Enzymes
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.
Helping in reproduction
Allowing transport of substances
Producing gametes/sex cells
Prophase
Telophase
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
Anaphase-II
Prophase-I
Homologous chromosomes are at the equator.
Homologous chromosomes are showing crossing over.
Homologous chromosomes are separating.
A U G C G G U C A
T A C G C C A G T