Identify the polyphyletic group.
A. Bacteria
B. Chloroplasts
C. Eukarya
D. Protists
E. Archaea
Answer: D
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The bottleneck effect is the loss of genetic diversity that occurs when
A. many organisms have successful survival rates. B. many members of a population die. C. large groups of individuals leave their home population and establish new settlements. D. small groups of individuals leave their home population and establish new settlements. E. many members of a population reproduce.
In mice the allele for colored fur (C) is dominant to the allele for albinism (c). The allele for normal
behavior (W) is dominant to that for waltzing movement (w). Give the probable genotypes of the parents if they produced the offspring listed after the following crosses: (a) colored normal ? white waltzer produced 10 colored normal, 8 colored waltzers, 2 white waltzers, 11 white normal (b) colored normal ? white normal produced 35 colored normal, 13 colored waltzers (c) colored normal ? colored normal produced 37 colored normal, 14 colored waltzers, 9 white normal, and 5 white waltzers What will be an ideal response?
RNA is made up of many
A. nucleotides. B. amino acids. C. proteins. D. DNA molecules.
Which of the groups is a functional group?
A. -OH B. C=O C. COOH D. NH2 E SH