TEST_DE_LE_Unit4

1

The blue flowers that a plant inherits from its parents are an example of a

mutation

trait

dihybrid cross

sex-linked disease

1

An individual who expresses a recessive trait is ______ for that trait.

homozygous

both homozygous and heterozygous

heterozygous

neither homozygous nor heterozygous

1

If a person has a dominant allele for brown eyes and a recessive allele for blue eyes, which statement is correct?

The individual has brown eyes.

The individual has blue eyes.

Eye color cannot be determined based on the given information.

The individual has eye color that is a mix of brown and blue.

1

What are the chances that two heterozygous (Bb) parents will have a dominant expressing child?

25 percent

50 percent

75 percent

100 percent

1

If a cow contains two codominant alleles - one fore white hide color and one for red hide color - what would the cow's hide probably look like?

orange

red

patches of white and patches of red

white

1

Which of the following procedures is based largely on Mendel's research?

performing surgery on a broken arm

treating lung cancer with radiation

breeding a dox for floppy ears

using a microscope to study viruses

1

The diagram shows a dihybrid cross of two bean plants. Yellow (Y) is the dominant flower color and smooth (S) is the dominant leaf texture.
According to the diagram, what are the chances that the offspring will have smooth leaves?

25 percent

50 percent

75 percent

100 percent

1

By observing more than one type of trait simultaneously over multiple generations, which law did Mendel discover?

the law of co-dominance

the law of multiple alleles

the law of independent assortment

the law of segregation

1

What are the names of each DNA strand during replication?

up and down

leading and lagging

forward and backward

complete and fragmentary

1

What determines the genetic code of a region of DNA?

the number of phosphate groups

the order of sugar and phosphate groups

the order of nitrogenous bases

the number of base pairs

1

What does a chromosome consist of?

tightly wound DNA and proteins

tightly wound DNA only

loosely dispersed DNA

loosely dispersed DNA and proteins

1

Messenger RNA delivers a "message" from to _.

DNA; ribosomal RNA

DNA; proteins

ribosomes; transfer RNA

ribosomal RNA; proteins

1

What molecule begins DNA replication?

helicase

mRNA

RNA polymerase

DNA polymerase

The following is a strand of DNA that is coding for different amino acids.

5' TAC CTC AGC GAT 3'

1

Which of the following provides the correct sequence for a strand of mRNA that was made to be complementary to the DNA strand?

AUC CAC UGC GUA

ATC CAC TGC GTA

ATG GAG TCG CTA

AUG GAG UCG CUA

1

Place the steps of transcription in order:

The DNA strand separates
RNA polymerase attaches to the DNA template
The mRNA strand moves out of the nucleus
Base pairing forms mRNA

1

Which step begins the process of translation

The ribosome releases the protein and detaches from the mRNA.

tRNA connects an amino acid to the ribosome.

A ribosome reads the codon sequence at the 5' end of mRNA.

A stop codon indicates the end of the polypeptide.

1

Ligases are enzymes that connect strands of nucleic acids. During which step of protein synthesis are ligases used?

RNA processing

transcription

mutation proofreading

peptide bonding

1

One reason chromosomal mutations are considered large-scale is because ____________.

they are always passed onto the offspring

they cannot be proofread and fixed

they affect large organisms

they can affect more than one gene

1

What type of mutation could cause the 3-nucleotide reading frame of tRNA to be shifted?

deletion of one or more nucleotides during replication

incorrect base pairing

replacing an amine group

switching a normal nucleotide for an abnormal one

1

An autosomal dominant disorder requires _______ in order to affect an individual.

a combination of sex-linked and environmental factors

one copy of a mutated gene

a combination of genetic and environmental factors

two copies of a mutated gene

1

Which of the following is NOT true about X-linked disorders?

They involve mutations along the X chromosome.

They can affect males or females.

An example of one is Rett syndrome.

They only affect males.

1

Which of the following is an example of an autosomal dominant disorder?

Marfan syndrome

Niemann-Pick disease

Tay-Sachs disease

Williams syndrome

1

The primary goal of gene therapy is to give a patient

a new, normal single gene

new, normal, reproductive organs

a new, normal cell nucleus

a new, normal single chromosome

1

Which of the following is not a category of genetic disorders?

chromosomal

environmental

multi-factorial

single-gene

1

If someone who is homozygous for an autosomal recessive disorder mates with a person who does NOT carry the mutated gene, their child will __________.

have a 50 percent chance of developing the disease

have a zero percent chance of developing the disease

have a 25 percent chance of developing the disease

have a 100 percent chance of developing the disease

TEST_DE_LE_Unit4

The blue flowers that a plant inherits from its parents are an example of a

An individual who expresses a recessive trait is ______ for that trait.

If a person has a dominant allele for brown eyes and a recessive allele for blue eyes, which statement is correct?

What are the chances that two heterozygous (Bb) parents will have a dominant expressing child?

If a cow contains two codominant alleles - one fore white hide color and one for red hide color - what would the cow's hide probably look like?

Which of the following procedures is based largely on Mendel's research?

The diagram shows a dihybrid cross of two bean plants. Yellow (Y) is the dominant flower color and smooth (S) is the dominant leaf texture. According to the diagram, what are the chances that the offspring will have smooth leaves?

By observing more than one type of trait simultaneously over multiple generations, which law did Mendel discover?

What are the names of each DNA strand during replication?

What determines the genetic code of a region of DNA?

What does a chromosome consist of?

Messenger RNA delivers a "message" from ________ to _________.

What molecule begins DNA replication?

Which of the following provides the correct sequence for a strand of mRNA that was made to be complementary to the DNA strand?

Place the steps of transcription in order:

Which step begins the process of translation

Ligases are enzymes that connect strands of nucleic acids. During which step of protein synthesis are ligases used?

One reason chromosomal mutations are considered large-scale is because ____________.

What type of mutation could cause the 3-nucleotide reading frame of tRNA to be shifted?

An autosomal dominant disorder requires _______ in order to affect an individual.

Which of the following is NOT true about X-linked disorders?

Which of the following is an example of an autosomal dominant disorder?

The primary goal of gene therapy is to give a patient

Which of the following is not a category of genetic disorders?

If someone who is homozygous for an autosomal recessive disorder mates with a person who does NOT carry the mutated gene, their child will __________.

The blue flowers that a plant inherits from its parents are an example of a

An individual who expresses a recessive trait is ______ for that trait.

If a person has a dominant allele for brown eyes and a recessive allele for blue eyes, which statement is correct?

What are the chances that two heterozygous (Bb) parents will have a dominant expressing child?

If a cow contains two codominant alleles - one fore white hide color and one for red hide color - what would the cow's hide probably look like?

Which of the following procedures is based largely on Mendel's research?

The diagram shows a dihybrid cross of two bean plants. Yellow (Y) is the dominant flower color and smooth (S) is the dominant leaf texture. According to the diagram, what are the chances that the offspring will have smooth leaves?

By observing more than one type of trait simultaneously over multiple generations, which law did Mendel discover?

What are the names of each DNA strand during replication?

What determines the genetic code of a region of DNA?

What does a chromosome consist of?

Messenger RNA delivers a "message" from ________ to _________.

What molecule begins DNA replication?

Which of the following provides the correct sequence for a strand of mRNA that was made to be complementary to the DNA strand?

Place the steps of transcription in order:

Which step begins the process of translation

Ligases are enzymes that connect strands of nucleic acids. During which step of protein synthesis are ligases used?

One reason chromosomal mutations are considered large-scale is because ____________.

What type of mutation could cause the 3-nucleotide reading frame of tRNA to be shifted?

An autosomal dominant disorder requires _______ in order to affect an individual.

Which of the following is NOT true about X-linked disorders?

Which of the following is an example of an autosomal dominant disorder?

The primary goal of gene therapy is to give a patient

Which of the following is not a category of genetic disorders?

If someone who is homozygous for an autosomal recessive disorder mates with a person who does NOT carry the mutated gene, their child will __________.

The diagram shows a dihybrid cross of two bean plants. Yellow (Y) is the dominant flower color and smooth (S) is the dominant leaf texture.
According to the diagram, what are the chances that the offspring will have smooth leaves?

Messenger RNA delivers a "message" from to _.

The diagram shows a dihybrid cross of two bean plants. Yellow (Y) is the dominant flower color and smooth (S) is the dominant leaf texture.
According to the diagram, what are the chances that the offspring will have smooth leaves?

Messenger RNA delivers a "message" from to _.