Biology A » Summer 2022 » Credit 4 Quiz

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Question #1
What was the shape of DNA that scientists James Watson and Francis Crick proposed?
A.   A double helix
B.   A sphere
C.   A single helix
D.   A cone
Question #2
According to base-pairing rules, what would be the correct pairing for the base sequence ATCGGCA during DNA replication?
A.   TAGCGCT
B.   TAGCCGT
C.   ATCGGCA
D.   UAGCCGU
Question #3
Unlike DNA, RNA contains the base:
A.   Cytosine
B.   Guanine
C.   Uracil
D.   Adenine
Question #4
What is the process that copies a sequence of DNA to produce a complimentary strand of mRNA?
A.   Transcription
B.   Replication
C.   Regeneration
D.   Translation
Question #5
What is the process that converts an mRNA message into a protein?
A.   Regeneration
B.   Transcription
C.   Translation
D.   Replication
Question #6
After meiosis, what is the haploid number of chromosomes if the diploid number is 46?
A.   23
B.   12
C.   36
D.   46
Question #7
How many haploid cells are produced from one diploid cell during the process of meiosis?
A.   4
B.   3
C.   1
D.   2
Question #8
Suppose you cross a pea plant that is homozygous dominant for purple flowers (FF) with a pea plant that is homozygous recessive for white flowers (ff). According to this cross, what percentage of the offspring will have purple flowers?
A.   50%
B.   25%
C.   0%
D.   100%
Question #9
The law of independent assortment states that:
A.   Allele pairs do not separate independently of each other during meiosis.
B.   Allele pairs do not separate independently of each other during mitosis.
C.   Allele pairs do separate independently of each other during mitosis.
D.   Allele pairs do separate independently of each other during meiosis.
Question #10
Colorblindness is a sex linked recessive disorder found on the X chromosome in humans. If a man who is colorblind (XaY) and a woman who is a carrier for colorblindness (XAXa) have a child, what is the probability that the child will be male and colorblind?
A.   50%
B.   0%
C.   25%
D.   100%

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