Which type of mutagen has a structure similar to one of the DNA nucleotides and therefore can work its way into DNA, where it pairs with a nucleotide?
What will be an ideal response?
base analog
Biology & Microbiology
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Anoxygenic phototrophs grow photosynthetically only under aerobic conditions
Indicate whether this statement is true or false.
Biology & Microbiology
Along with lipids, the skin of amniotes is filled with ____ to help prevent water loss
a. squalene b. bone c. keratin d. collagen e. albumin
Biology & Microbiology
A Barr body exists for the purpose of
a. protein dosage compensation. b. insuring fertilization. c. blocking the activity of the Y chromosome. d. turning on the SRY gene. e. activating master genes
Biology & Microbiology
Which of the following living reptiles care for their young and have a four-chambered heart, as birds do?
A. lizards B. crocodiles C. turtles D. tuataras E. snakes
Biology & Microbiology