Which chemical is not a part of DNA?

A) phosphate

B) ribose

C) cytosine

D) nitrogen


B) ribose

Biology & Microbiology

You might also like to view...

When DNA is replicated, ____

a. parental histones are degraded and entirely replaced by new histones b. DNA is permanently freed from histone binding

c. the histone proteins are also replicated d. only some of the histone proteins are replicated e. the number of histones that bind to each DNA molecule is halved

Biology & Microbiology

After DNA repair enzymes remove an incorrect nucleotide resulting from a replication error, ____ is/are needed to

complete the repair.

a. primase, DNA polymerase, and DNA ligase b. DNA polymerase c. DNA polymerase and DNA ligase d. primase and DNA ligase e. primase and DNA polymerase

Biology & Microbiology

Which group of organisms is the main competition to humans for food and plants? a. Cattle b. Birds c. Insects d. All compete equally with humans for food

e. Arthropods

Biology & Microbiology

Having legs longer than your arms is an example of:

a. an allometric growth pattern. b. an allopatric growth pattern. c. an adaptive growth pattern. d. paedomorphosis. e. a preadaptation.

Biology & Microbiology