If your mother and father both are healthy but carry the allele for cystic fibrosis, which is caused by a

recessive allele, the odds of your having at least one allele for the disorder are



a. 1/4.
b. 1/2.
c. 3/4.
d. 1.
e. 0.


C

Biology & Microbiology

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Which of the following is not a vector?

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Which of these events occurred during the Paleozoic?

a. origin of Earth b. colonization of land by plants c. origin of eukaryotes d. origin of multicellularity e. first humans

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A species that has a normal resting systolic blood pressure of greater than 260 mm Hg is likely to be _____

A) an animal that is small and compact, without the need to pump blood very far from the heart B) a species that has very wide diameter veins C) an animal that has a very long distance between its heart and its brain D) an animal that makes frequent, quick motions

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The most likely primary site of replication during mononucleosis is the B lymphocyte

Indicate whether the statement is true or false

Biology & Microbiology