DNA polymerase ____
a. synthesizes a short RNA segment to begin DNA replication
b. adds nucleotides to the 5' end of an existing strand to synthesize a new DNA strand
c. adds nucleotides to the 3' end of an existing strand to synthesize a new DNA strand
d. seals nicks between adjacent segments of DNA
e. unwinds the DNA double helix at the origin of replication
ANSWER: c
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a. Aspergillus. b. the death cap mushroom. c. ergot. d. the Psilocybe mushroom
Golden rice is made more beta-carotene rich
with genes from bacteria and
a. corn. b. mice. c. tulips. d. daffodils. e. oranges
The ends of eukaryotic chromosomes can be lengthened by:
a. apoptosis. b. mismatch repair enzymes. c. primase. d. telomerase. e. DNA polymerase.
What is the phenotype of an individual who is heterozygous for dimples?
A) Dd B) DD C) dd D) None of the above