The primary problem animals faced in adapting to life on land was:a
finding a mate in the new environment.
b. being able to move around in the new environment.
c. the presence of predators, which was not a problem in the ocean.
d. the dry atmosphere.
e. acquiring enough oxygen.
D
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Noncompetitive inhibition is best described as
A. the end product binding to enzyme in noncompetitive site. B. the substrate binding to enzyme in a regulatory site. C. an anabolic reaction. D. the substrate binding to DNA, blocking enzyme transcription. E. the end product binding to DNA, blocking enzyme transcription.
RFLPs are commonly used in recombinant DNA technology to ________
A) generate pharmaceutical products of interest B) substitute for oligonucleotides C) map genes and construct DNA fingerprints D) cleave DNA of interest E) serve as recombinant DNA vectors
The science and study of the causes of disease and their mode of operation is referred to as ___
a. etiology b. disease progression c. bioinformatics d. observation
Which of the following is true about sex-determining chromosomes?
A) They have the same gene configuration and same loci. B) They do not participate in meiosis. C) They act like homologous chromosomes during meiosis so each gamete will get one sex chromosome. D) They are independent during meiosis. E) They are always metacentric.