The nitrogenous base found in DNA but not in RNA

is
a. adenine.
b. cytosine.
c. guanine.
d. uracil.
e. thymine.


Answer: e

Biology & Microbiology

You might also like to view...

Which of the following is the fourth basic step to genetically modify a cell?

A) transformation B) ligation C) plasmid cleavage D) isolation of gene E) restriction-enzyme digestion of gene

Biology & Microbiology

Would you describe the water cycle as slow or rapid? What will be an ideal response?

Biology & Microbiology

A red-eyed female fruit fly is crossed with a red-eyed male fruit fly. All of the female offspring have red eyes but only one-half of the male offspring are red-eyed. The other half of the male offspring have white eyes. In this example, eye color in fruit flies 

A. is influenced by the environment. B. is an X-linked trait. C. is controlled by several genes. D. exhibits lack of dominance.

Biology & Microbiology

Which of the following statements about the inner mitochondrial membrane is false?

A) Electron carriers are associated with the inner mitochondrial membrane. B) A gradient of H+ exists across the inner mitochondrial membrane. C) The inner mitochondrial membrane is involved in chemiosmosis. D) The inner mitochondrial membrane plays a role in the production of pyruvate. E) ATP synthase is associated with the inner mitochondrial membrane

Biology & Microbiology