n enzyme produced in response to the presence of a substrate is called
A) A promoter.
B) A restriction enzyme.
C) An operator.
D) A repressible enzyme.
E) An inducible enzyme.
E) An inducible enzyme.
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Which of the following shows an F1 monohybrid cross?
a. RrMM ? Rrmm b. RRMM ? rrmm c. Rr ? Rr d. rr ? RR e. Rr ? rr
The new nutritional guidelines from the United
States Food and Drug Administration specify that carbohydrates should make up __________ percent of daily caloric intake. a. 5 b. 15 c. 25 d. 55 e. 75
Absolute dating uses _____ to estimate how old a fossil is.
A. depth within rock layers B. radioactive isotopes C. a molecular clock D. structural features E. embryonic structuresf
TPOX is one of the STRs that is used to compare DNA between different people. Why is TPOX useful for comparing DNA between different people?
A) TPOX varies in the number of repeats between different people. B) TPOX varies in sequence between different people. C) TPOX is only present in some people's genomes. D) TPOX is present in different places in different people's genomes.