The field of genetics includes
A) the study of heredity.
B) the molecular nature of the genetic material.
C) the ways in which genes control life functions.
D) the distribution and behavior of genes in populations.
E) All of these
E
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Most of the mass of the solar system is made up of the elements
a. carbon and hydrogen. b. oxygen and hydrogen. c. helium and hydrogen. d. nitrogen and hydrogen. e. nitrogen and carbon.
In a missense mutation:A
All the amino acids beyond the mutation point are changed. B. A nucleotide is added to the DNA. C. A nucleotide is deleted from the DNA. D. A single amino acid is altered. E. The protein is always completely nonfunctional.
Taking food into the mouth
What will be an ideal response?
Suppose ENZ-1 and ENZ-2 are two different restriction enzymes. If various pieces of DNA from different species are cut with these enzymes (as follows), which would most easily form recombinant molecules?
A) Human DNA cut with ENZ-1 and human DNA cut with ENZ-2 B) Human DNA cut with ENZ-2 and gorilla cut with ENZ-2 C) Bacterial DNA cut with ENZ-1 and bacterial DNA cut with ENZ-2 D) Human DNA cut with ENZ-1 and gorilla DNA cut with ENZ-2