__________ are proteins, Y-shaped antigen receptors made only by __________ cells. Fill in the blank(s) with the appropriate word(s)
Antibodies
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Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If telomerase is not
functioning in that cell or in any of the cell’s progeny, what would you expect to happen to your clone?
a. The clone will be unable to grow. b. When the clone matures, it will most likely have cancer. c. The clone's cells may divide, but after a certain number of generations, cell division will stop. d. The lack of telomerase should have no effect on the clone. e. When the clone matures, it will most likely be sterile.
Sympatric speciation occurs
a. before allopatric speciation. b. together with allopatric speciation. c. after allopatric speciation. d. within the home range. e. outside the home range.
Communities vary in composition over space but usually not in composition over time
Indicate whether the statement is true or false
Dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth that occurs in about one in 8000 people (Witkop, 1957). The teeth are somewhat brown in color, and the crowns wear down rapidly
Assume that a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth. What is the probability that (a) their first child will have dentinogenesis imperfecta? (b) their first two children will have dentinogenesis imperfecta? (c) their first child will be a girl with dentinogenesis imperfecta?