Geneticists use ____ to study the genetics of families through generations

a. Punnett squares
b. pedigrees
c. karyotypes
d. DNA profiles
e. fossil analyses


ANSWER: b

Biology & Microbiology

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Enzymes that are expressed at a constant level all the time are said to be                        .

A. inducible B. constitutive C. attenuated D. repressible

Biology & Microbiology

What percentage of carbon's orbitals are spherical in conformation?

A. 0% B. 20% C. 40% D. 80% E. 100%

Biology & Microbiology

Which of the following is likely NOT to be a mechanism for controlling hormone levels in the blood?

A. Alter the rate of synthesis and subsequent release of hormone into the blood. B. Change the rate at which an enzyme produces the hormone. C. Modify the structure of the hormone at its point of production so it no longer binds its receptor. D. Alter the rate at which the hormone is removed from the blood. E. Change the rate at which the hormone is excreted into the urine.

Biology & Microbiology

Four of the five chemicals listed below are

related to the light-independent reactions. Select the EXCEPTION.

a. oxygen b. carbon dioxide c. RuBP d. rubisco e. glucose

Biology & Microbiology