The molecule shown above is the pyrimidine ____, which is typically found in both DNA and RNA

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


E

Biology & Microbiology

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A mutagen that inserts between the stacked bases of a DNA double helix, distorting the DNA to induce single-pair insertions or deletions is called a(n) ________ agent.

A. intercalating B. insertional C. distortional D. interspersing

Biology & Microbiology

One of the first chemotherapy drugs, vincristine, was discovered in the rosy periwinkle and is a(n) ___________

A. terpenoid B. phenol C. non-protein amino acid D. alkaloid

Biology & Microbiology

A male pheasant performs a courtship display for a female pheasant from a different

population. The female interprets the behavior as aggressive rather than amorous. This is an example of what type of reproductive isolation?

a. mechanical b. temporal c. geographical d. behavioral

Biology & Microbiology

In what group of animals are monogamy and cooperative care of the young by two parents most common?

What will be an ideal response?

Biology & Microbiology