In a photosystem, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like

A) an antenna.
B) a propeller on a motorboat.
C) a windmill.
D) a spring.


Answer: A

Biology & Microbiology

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A possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence phe-leu-ile-val would be _____

A) TTG-CTA-CAG-TAG B) AAC-GAC-GUC-AUA C) AUG-CTG-CAG-TAT D) AAA-AAT-ATA-ACA E) AAA-GAA-TAA-CAA

Biology & Microbiology

What is the difference between a linkage map and a physical map?

A) Markers are spaced by recombination frequency on a linkage map and by number of base pairs on a physical map. B) The ATCG order and sequence must be determined for a linkage map but not for a physical map. C) A linkage map shows how each gene is linked to every other gene, but a physical map does not. D) Distances must be calculable in units such as nanometers on a physical map but not on a linkage map. E) There is no difference between the two except in the type of pictorial representation.

Biology & Microbiology

When feces are not expelled regulary, additional water is absorbed from them. This may lead to a condition called_________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

List the structures involved in the production of semen and indicate their contribution.

What will be an ideal response?

Biology & Microbiology