Mutations that occur in somatic cells are:
A) responsible for the appearance of human diseases such as sickle-cell anemia.
B) always harmful.
C) never harmful.
D) passed on to successive generations when they are incorporated into gametes.
E) not passed on to future generations.
Answer: E
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a. A b. E c. K d. B e. D
In many parts of the Everglades in Florida, excessive irrigation is lowering water levels and allowing salt water to enter the freshwater swamps. Why is this a problem for plants that have adapted to life in these swamps?
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The allele for albinism (c) is recessive to the allele for normal pigmentation (C). A normally
pigmented woman whose father is an albino marries an albino man whose parents are normal. They have three children of which two are normal and one is albino. Give the genotypes for each person listed. What will be an ideal response?
In flowering plants, pollen represents the
A) zygote. B) haploid stage. C) diploid stage.