Which set of codons terminate transcription in most organisms?
A. ACT, TAC, ATT
B. UGA, UAG, UAA
C. TGA, TAG, TAA
D. AGU, UAG, UAA
Answer: B
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For normal human fertilization to occur, _____
A) many ova must be released B) the uterus must be enlarged C) only one sperm needs to penetrate one egg D) secretion of pituitary follicle-stimulating hormone (FSH) and luteinizing hormone (LH) must decrease E) the secondary oocyte must implant in the uterus
Which of the following types of cells might have the longest/slowest cell cycle?
a. nerve cell b. skin cell c. cell lining the gut d. hair cell
Who is credited with demonstrating unidirectional and nonreciprocal transfer of DNA between two mating E. coli cells?
A. Tatum B. Lederberg C. Hayes D. None of the choices are correct.
Which of the following is least likely to result in a release of epinephrine (adrenaline) from the adrenal glands?
A. Competing in an athletic event B. going out on a first date C. Falling asleep during a lecture D. Swimming in a very cold pool E. taking a test while unprepared