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General Biology

Study Pack

Set 16 The Molecular Basis Of Inheritance

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Question 1

(Multiple Choice)

Free
Which enzyme catalyzes the elongation of a DNA strand in the 5' → 3' direction?

A)primase
B)DNA ligase
C)DNA polymerase III
D)topoisomerase
E)helicase

Answer

Question 2

(Multiple Choice)

Free
Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism.Approximately what percentage of the nucleotides in this sample will be thymine?

A)8%
B)16%
C)31%
D)42%
E)It cannot be determined from the information provided.

Answer

Question 3

(Multiple Choice)

Free
Which of the following investigator(s)was/were responsible for the following discovery?
In DNA from any species,the amount of adenine equals the amount of thymine,and the amount of guanine equals the amount of cytosine.

A)Frederick Griffith
B)Alfred Hershey and Martha Chase
C)Oswald Avery, Maclyn McCarty, and Colin MacLeod
D)Erwin Chargaff
E)Matthew Meselson and Franklin Stahl

Answer