A species has 29% of its DNA composed of the nucleotide containing guanine (G). What percent does the nitrogen base thymine (T) equal?

A. 42%
B. 29%
C. 58%
D. 21%
E. 67%


Answer: D

Biology & Microbiology

You might also like to view...

Which of the following conditions would you use to enrich purple nonsulfur bacteria from lake sediments?

A) anoxic media with a good light source B) mineral media with ammonia and oxygen in the dark C) anoxic mineral media with an organic acid and a good light source D) mineral media with nitrate and acetate in the dark

Biology & Microbiology

The best explanation for why a mouse develops into a mouse and not a human is 

A. most of the coding genes are different. B. most of the non-coding genes are different. C. gene expression differs. D. the genes are mostly the same but have been rearranged. E. synteny has not been conserved.

Biology & Microbiology

Below are figures for the percentage allocation of production to shoots (above-ground parts) for four different species. Which of these is likely to be an annual herbaceous species?

A) 80-90% B) 70-80% C) 60-70% D) 20-60%

Biology & Microbiology

All of the following are advantages of attenuated vaccines over inactivated vaccines except 

A. they produce infection but not disease. B. they can mutate back to a virulent strain. C. they require smaller doses. D. they confer longer lasting protection. E. they require fewer boosters.

Biology & Microbiology