A somatic mutation
A) occurs only in microbes.
B) affects a particular subset of cells.
C) affects all cells of an individual.
D) is expressed only in embryos.
B) affects a particular subset of cells.
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In a previous experiment we tested the amount of female and male fish born under extreme heat conditions. Our sample size was 562 embryos. Of those embryos 311 were born female and 251 were born male. What would be the expected frequency of this data set for chi-squared test?
A. 281 B. 562 C. 48 D. None of the above
There are several properties that are characteristic of a soil in which typical plants would grow well. Of the following, which would be the least conducive to plant growth?
A) abundant humus B) numerous soil organisms C) compacted soil D) high cation exchange capacity
Two moths with similar markings each produce a chemical that makes their bird predators sick to their stomach if eaten. Which principle of ecology does this demonstrate?
A) Müllerian mimicry B) Batesian mimicry C) commensalism D) mutualism
What can DNA typing tell us about George Washington's false teeth?
What will be an ideal response?