Which statement about eukaryotic chromosomes is not true?

a. They sometimes consist of two chromatids.
b. They sometimes consist only of a single chromatid.
c. They normally possess a single centromere.
d. They consist only of proteins.
e. During metaphase they are visible under the light microscope.


Answer: d. They consist only of proteins.

Biology & Microbiology

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Which of the following can lyse pathogenic cells?

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The rigid chitinous exoskeleton of an arthropod has all of the following functions except it

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Connective tissue is different from epithelial tissue in that connective tissue:

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