If ionizing radiation affects a germ cell then ____
a. no sperm or eggs will be made
b. more eggs and sperm than normal will be produced
c. sperm and eggs will contain the diploid number of chromosomes
d. damage to the DNA will be inherited by an infant
e. no problems will arise
ANSWER: d
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A. template strand; duplicate strand B. duplicate strand; daughter strand C. daughter strand; template strand D. template strand; daughter strand E. daughter strand; duplicate strand
In arid regions, a deep root system is more common than a shallow-but-broad system
a. True b. False
Pigs have digitigrade locomotion because they walk on
a. their ankles. b. the soles of their feet. c. the tips of their toes, which are modified as hooves. d. their hands and knees.
What source of genetic variation arises from a change in the DNA sequence of sex cells?
a. Mutation b. Genetic recombination c. Genetic diversity d. Natural selection