Hamilton's Rule is a simple expression that specifies the conditions under which altruism will increase in frequency. What is this expression?
What will be an ideal response?
Br - C > 0, where B = benefit to the recipient, r = a measure of the genetic similarity of the individuals, and C = cost to the actor.
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Overexpression of proteins using bacteria :
A. makes subsequent purification of the recombinant DNA harder. B. requires bacterial promoters to be present in the bacterial vector. C. requires eukaryotic promoters to be present in the bacterial vector. D. requires eukaryotic ribosome binding sites to be present in the bacterial vector. E. results in a properly folded, active protein.
Whenever diploid populations are in Hardy-Weinberg equilibrium at a particular locus, _____
A) the allele's frequency should not change from one generation to the next B) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency C) two alleles are present in equal proportions D) individuals within the population are evolving
The "a" helix of proteins is..?
a. Part of the tertiary structure and is stabilized by disulfide bridges. b. a double helix. c. stabilized by hydrogen bonds and commonly found in fibrous proteins. d. found in some regions of globular proteins and stabilized by hydrophobic interactions. e. a complementary sequence to messenger RNA.
The left to right order of elements in the periodic table is based on their ________.
A) atomic mass B) atomic number C) electric charge of the atom D) the number of neutrons