________ mutations cause overexpression or result in new functions
Fill in the blank(s) with correct word
Gain-of-function
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What enzyme is produced by the human body following a snack on a donut?
A. Glucagon B. Insulin C. Both insulin and glucagon D. No enzyme is produced following a snack; enzymes are not triggered by food consumption.
Mismatch repair, base excision repair, and nucleotide excision repair are similar in that (select all that apply):
A. each repairs a single mismatched base. B. each repairs a short strand of mismatched nucleotides. C. each repairs multiple mismatched or damaged bases across a region. D. each uses an undamaged segment of DNA as the template to repair a damaged segment of DNA. E. none of these.
Which of the following is the organ of exchange between the mother and fetus?
A. allantois B. yolk sac C. placenta D. chorion E. amnion
Which pattern of diploid and haploid phases reflect the life cycle in some fungi and algae, but not
plants or animals?
a. alternation between haploid and diploid generations b. two haploid generations followed by a diploid generation c. one haploid generation followed by two diploid generations d. a life cycle that limits the diploid state to a single cell produced by fertilization e. a life cycle that limits the haploid state to a single cell which is immediately fertilized