You will not observe __________ in animal cells.

A) mitochondria
B) a plasma membrane
C) ribosomes
D) a cell wall


Answer: D) a cell wall

Biology & Microbiology

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Do all of the nucleotides contain a different nitrogenous base?

a. yes b. no

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Speciation caused by the separation of the continents

is a. divergence. b. parapatry. c. gene flow. d. allopatry. e. sympatry.

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Glucagon raises blood glucose levels by:

a. stimulating the liver to take up glucose. b. inhibiting gluconeogenesis. c. stimulating gluconeogenesis. d. inhibiting fatty acid mobilization. e. inhibiting amino acid mobilization

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Because of the formation of Barr bodies, normal human males have ___________ amount of gene products produced by the X-chromosome compared to females.

a) 2 times the b) the same c) 1/2 the d) 1/4 the

Biology & Microbiology