Hemophilia is caused by a

A. dominant allele on the X chromosome.
B. codominant allele on the X chromosome.
C. recessive allele on an autosome.
D. dominant allele on an autosome.
E. recessive allele on the X chromosome.


Answer: E

Biology & Microbiology

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If this cell is in the middle of meiosis I, the end result of this division would be

____________________.

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Replication of DNA occurs during ____

a. S phase b. G1 phase c. G0 phase d. prophase e. cytokinesis

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Which characteristic will NOT strengthen the validity of a theory?

a. repetitions of experiments b. increased observations c. time after the experiment d. faith in the experiment e. confirmation by many scientists

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Most animals on land have __________ fertilization;

gametes meet in a female’s body.

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