Proteins that are embedded within the cytoplasmic membrane and not easily extracted are called ________ proteins.
A. internal
B. external
C. peripheral
D. integral
Answer: D
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The only survivors of a colony on Venus are a man and a woman, who both happen to originally be from southern
Ukraine. Their descendants will show the effect of ____.
a. genetic drift b. punctuated equilibrium c. excessive mutation d. heterozygote advantage e. frequency-dependent selection
Pangea, the name given to the supercontinent that existed before continental drift, was coined by:
a. Sir Francis Bacon. b. Alfred Wegener. c. Harry Hess. d. Edward Suess. e. Sir Alistair Hardy.
Why is it advantageous for transcription factors to be multimeric and for their binding sites to be clustered?
A) The strength of the DNA-protein interactions is increased. B) The DNA sequence specificity of each DNA-protein interaction is increased. C) Each DNA-protein complex is better able to bind to RNA polymerase. D) Competition for binding between different transcription factors for the same regulatory region is decreased.
What organism exhibits complete genetic linkage, meaning there is no recombination between homologous chromosomes?
What will be an ideal response?