The top three causes of death in the United States are due to infectious diseases.
a. true
b. false
Ans: b. false
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What type of mutation results in sickle cell
anemia?
a. base- pair substitution b. insertion c. deletion d. frame-shift e. gene duplication
Animal cells can survive only within a temperature range from about:
The heritability of a trait is the ____
a. sum of all phenotypic variation in a population b. average amount of genetic variation in each individual c. proportion of phenotypic variation that is caused by different genotypes d. absolute measurement of genotypic variation in a population e. proportion of phenotypic variation that is caused by the environment
Mendel’s principle of segregation states that alternate forms of a gene separate during
A. fertilization B. seed dispersal C. cross?pollination D. gamete formation