The phenomenon where the level of gene expression is controlled so that genes can be expressed at high or low levels is called gene __________.
Fill in the blank(s) with the appropriate word(s).
Answer: regulation
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If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the other complementary strand would have the sequence _____
A) 5'TAACGT3' B) 5'TGCAAT3' C) 5'UAACGU3' D) 3'UAACGU5' E) 5'UGCAAU3'
An r-strategist will typically:
A. produce many offspring. B. produce small offspring. C. provide abundant parental care. D. produce many small offspring. E. produce many small offspring and provide abundant parental care.
Euglenoids live in freshwater; a __________ rids them of excess water. Fill in the blank(s) with the appropriate word(s)
The acrosome contains enzymes that:a
digest the zona pellucida. b. digest the endometrium. c. stimulate ovulation. d. stimulate sperm motility. e. inhibit premature ejaculation.