Genetics 1-phosphate

2-ribose sugar

3-deoxyribose sugar

4-uracil

5-thymine

6-adenine

7-guanine

8-cytosine

Which components bond with adenine in a section of double-stranded DNA?

A- 1,3,5,6

B- 3,5

C- 2,4

D- 3,4,7,8

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,

What substance acts to prevent sudden ph changes in bodily fluids?