Natural selection:
a. does not sort on genotypic, but rather sorts on phenotypic differences in a population.
b. does not sort on phenotypic, but rather sorts on genotypic differences in a population.
c. sorts on both genotypic and phenotypic differences in a population.
d. None of the above.
A
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Heat shock proteins are produced at high numbers to minimize damaging effects during high heat conditions as well as other stress signals unrelated to heat such as ultraviolet radiation
Indicate whether the statement is true or false.
Calcium levels are primarily under the control of ____
a. calcitonin and thyroxine b. prolactin and oxytocin c. prolactin and oxytocin d. parathyroid hormone and thyroxine e. progesterone and ADH
The endosperm produced during double
fertilization is
a. diploid. b. tetraploid. c. polyploid. d. triploid. e. haploid.
What fraction of your DNA is the same as every other human being?
a. 50% b. 75% c. 90% d. 95% e. 99%