How much of the human genome actually codes for protein products?

a. 2%
b. 26%
c. 48%
d. 71%
e. 100%


ANSWER: a

Biology & Microbiology

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____ is the process by which diverging populations undergo natural selection in favor of enhanced pre-zygotic isolation

Fill in the blank with the appropriate word.

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If you see a male calico cat, you can be fairly certain that his diploid cells have a sex chromosome combination of

____.

a. XYY b. XY c. XX d. XXY e. XO

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The ____ phylum of seedless vascular plants has about 1000 known living species, including those in the genera

Lycopodium and Selaginella; the gametophyte of some of these species cannot photosynthesize, and instead uses mycorrhizae to obtain nutrients

a. Hepatophyta b. Monilophyta c. Bryophyta d. Lycophyta e. Anthocerophyta

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Maintaining your body's internal temperature within narrow tolerable range is one example of:

a. sebaceous glands working to lower your body temperature. b. stasis. c. homeostasis. d. compensation. e. hydrolysis.

Biology & Microbiology