Primers are used in both PCR and in DNA sequencing. What is the purpose of the primers?
A. to separate the DNA template strands
B. to provide a 3'-OH for DNA polymerase to build a new DNA strand
C. to terminate synthesis of the growing DNA strand
D. to separate various-sized DNA products
E. to add nucleotides to a growing DNA strand
Answer: B
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A. A B. B C. C D. D Blooms Level:
The sharp peak of estradiol secretion during the ovarian cycle
A. inhibits the secretion of LH and FSH. B. stimulates the secretion of LH and ovulation. C. stimulates growth of the uterine lining. D. stimulates completion of meiosis I. E. inhibits progesterone production.
In __________, one of the sperm cells in the pollen
tube fertilizes the egg, forming a zygote; the other fuses with the endosperm mother cell and gives rise to __________. Fill in the blank(s) with the appropriate word(s).
A(n) (genome/codon/operon) is a set of prokaryotic genes that are regulated and transcribed as a unit
What will be an ideal response?