Proteins are created with:

A. phosphodiester bonds.
B. peptide bonds.
C. triglycerides.
D. polysaccharides.


B

Biology & Microbiology

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Which of the following proteins is a transcriptional factor that binds genes and regulates the transcription of genes that promote cell division?

A. GRB2 B. epidermal growth factor C. myc D. raf-1 E. MAPK

Biology & Microbiology

Amination is the addition of a(n) ________ group to a carbon skeleton.

A. phosphate B. carboxyl C. amino D. hydroxyl

Biology & Microbiology

A cyst formed by a protist functions

A. as a protective mechanism against adverse changes in the environment. B. in transfer from one host to the next. C. in repair of damage to the cell envelope. D. as a protective mechanism against adverse changes in the environment and in transfer from one host to the next.

Biology & Microbiology

Which of the following is characterized by the formation of a population of lymphocytes that can attack and destroy the foreign material?

a) hypersensitive immunity b) cell-mediated immunity c) acquired immunity d) humoral immunity

Biology & Microbiology