Why are women given hormones prior to obtaining eggs for IVF?
a. to protect eggs from damage
b. to protect the eggs from mutating
c. to prevent premature maturation of the eggs
d. to prepare the uterus for eggs
e. to cause multiple eggs to mature at once
ANSWER: e
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The reverse transcription of HIV RNA utilizes host cell tRNA as a primer. Specifically, a tRNA for lysine is utilized. Would a drug that blocked the host cell synthesis of the tRNA for lysine be a good drug to prevent the HIV life cycle?
A. Yes, it should stop the reverse transcription of the HIV genome with few side effects. B. No, the virus would just use a different tRNA for priming. C. No, this would likely kill the cells that were drug treated, because they couldn't appropriately incorporate lysine into their proteins D. No, the priming function of the tRNA is not essential for the HIV life cycle.
One type of RNA editing involves inserting uracils into edited mRNA with the assistance of which type of specialized RNA?
What will be an ideal response?
Gene therapy is:
a. replacing all mutant alleles in body cells. b. replacing poor copies of alleles with normal alleles. c. replacing a mutant allele in certain body cells with a normal allele. d. repairing mutant alleles in certain body cells. e. improving gene expression in key body cells.
Which of the following defines Hardy-Weinberg equilibrium?
A. generation-to-generation change in a population's frequencies of alleles B. the smallest scale of evolution C. a nonevolving population in genetic equilibrium D. 2pq