The branch of biology known as evolutionary-developmental biology involves the study of:

A. the development of multicellularity.
B. how mechanisms of development have
been influenced by evolution.
C. cell-cell communication.
D. cell adhesion molecules.


B

Biology & Microbiology

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In the lactose operon, the repressor gene binds to:

A. the lacI coding region. B. the promoter. C. the operator. D. the lacZ coding sequence. E. the lacY coding sequence.

Biology & Microbiology

Which one of the following is true of the sporophyte stage of a flowering plant?

A. It is haploid. B. It is 1N. C. It is a nonphotosynthetic stage. D. It is the obvious stage such as an oak tree. E. It is dependent on the gametophyte for nutrition.

Biology & Microbiology

A small mass of tissue with many lymphocytes that filters lymph is the:

a. thymus b. SA node c. spleen d. lymph node e. lymphatic duct

Biology & Microbiology

Which of the following structure-function pairs is mismatched?

a. nucleolus-ribosome production b. lysosome-intracellular digestion c. ribosome-protein synthesis d. Golgi-protein trafficking e. microtubule-muscle contraction

Biology & Microbiology