The X chromosome in humans _____.

A) is much larger than the Y chromosome
B) carries the SRY gene, the master gene for male sex determination
C) carries approximately 255 genes
D) is the largest autosome


Answer: A) is much larger than the Y chromosome

Biology & Microbiology

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All eukaryotic photosynthesizers are oxygenic.

Answer the following statement true (T) or false (F)

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The term aerobic means:

A) ATP-dependent. B) oxygen-independent. C) oxygen-dependent. D) carbon dioxide-dependent.

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The protists most closely related to animals and fungi are the ciliates

Indicate whether the statement is true or false.

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In pines, the female gametophyte contains _____, each of which contains a(n) _____.

a) archegonia ... egg b) antheridia ... egg c) antheridia ... sperm cell d) archegonia ... sperm cell e) microsporangia ... egg cell

Biology & Microbiology