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
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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).
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.
The first commercial product made with recombinant DNA techniques was ____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following organisms first introduced oxygen into Earth's atmosphere?
A) cyanobacteria B) methanogens C) early protozoans D) plants E) green algae