Cystic fibrosis is a recessive disorder. If a

couple, each of whom is heterozygous, have
children, what is the probability that they will
have a child with cystic fibrosis?



a. 0%
b. 25%
c. 50%
d. 75%
e. 100%


B

Biology & Microbiology

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A neutral solution has a pH of

(a) 3. (b) 5. (c) 7. (d) 9.

Biology & Microbiology

When male moose engage in their annual battles, butting heads with their oversized antlers, they are

participating in a process that will lead to

a. stabilizing selection. b. disruptive selection. c. directional selection. d. intrasexual selection. e. intersexual selection.

Biology & Microbiology

What is the fundamental difference between the processes of microevolution and macroevolution?

What will be an ideal response?

Biology & Microbiology

A ______ is generally a fake medicine used to disguise the treatments of participants in an experiment.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology