The nitrogenous base found in DNA but not in RNA is

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


E

Biology & Microbiology

You might also like to view...

The experiment in Figure 8.2 demonstrates that the ratio of 18O2 /16O2 increases when:

A. the water in the experiment contains 18O2. B. the carbon dioxide in the experiment contains 18O2. C. the water and carbon dioxide in the experiment both contain 18O2.

Biology & Microbiology

At least some of the cells of a mammalian heart in the final phase of development would most likely be

A. undergoing apoptosis B. dividing rapidly C. expressing segmentation genes D. expressing cardiac-specific transcription factors E. either undergoing apoptosis or expressing cardiac-specific transcription factors

Biology & Microbiology

In this diagram of a neuron, which item, A, B, C, or D, is an axon terminal?

1.A 2.B 3.C 4.D

Biology & Microbiology

The ABO blood types have __________ different

genotypes. a. 4 b. 6 c. 8 d. 12 e. 16

Biology & Microbiology