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DNA Structure, Replication, and Technology

DNA Structure, Replication, and Technology

Quizzes

1.

Based on the previous Punnett Square with dominant allele "A" and recessive allele "a," which of the following would BEST describe the two parents?

-> Both parents are homozygous.

A

a

a

Aa

aa

a

Aa

aa

2. What percent of the offspring are homozygous? -> 50%
3. What percent of the offspring would be heterozygous? -> 50%
4. What percent of offspring will display the recessive phenotype? -> 100%
5. After meiosis is completed, what is the ploidy, or number of copies of genome, in a cell? -> n
6. Which of the following organisms will have the lowest mutation rate of its genome? -> Influenza virus (RNA virus)
7. Which of the following nucleotide pairs require the most energy to separate? -> A-C
8. Which of the following enzymes is required first for DNA replication? -> Helicase
9. Which of the following does NOT describe lagging strand synthesis? -> The DNA polymerase works more slowly than on the leading strand.
10. Which of the following is true of telomeres? -> They are modified by enzymes called telomerases.
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