You are looking at an unknown cell under a microscope that has 22 chromosomes plus 2 X chromosomes. Which of the following is the most likely identity of this cell?

A) a skin cell from a human female
B) an egg from a human female
C) an epithelial cell from a male chicken
D) an eye cell from a female grasshopper


Answer: D

Biology & Microbiology

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Electrical stimulation of a human's medial forebrain bundle typically can be expected to produce a subsequence experience of ________

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

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In eukaryotes, acetyl-CoA synthesis takes place in the:

A. cytoplasm. B. outer mitochondrial membrane. C. inner mitochondrial membrane. D. intermembrane space of mitochondria. E. mitochondrial matrix.

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The first commercial product made with recombinant DNA techniques was ____________________. Fill in the blank(s) with the appropriate word(s)

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Which of the following organisms first introduced oxygen into Earth's atmosphere?

A) cyanobacteria B) methanogens C) early protozoans D) plants E) green algae

Biology & Microbiology