In genetics, a chi-square test can be used to determine ____
a. whether an organism with a dominant phenotype is homozygous or heterozygous
b. whether an allele exhibits complete or incomplete dominance
c. what the predicted outcome of a dihybrid cross will be
d. how closely actual results of a cross match the expected results
e. whether a trait is determined by one gene or many genes
d
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Secondary succession is likely to occur ____
a. in a newly formed volcanic island b. in an abandoned field c. in a mature forest d. on land exposure by glacier retreat e. on land with little to no soil
If one pair of alleles exhibits simple dominance
while the other pair exhibits incomplete dominance, the F2 phenotype produced from a cross of AA BB with aa bb will produce a __________ ratio. a. 1:1:1:1 b. 9:3:3:1 c. 1:4:6:4:1 d. 1:2:1 e. 3:6:3:1:2:1
In order to express eukaryotic genes in a bacterium, the ________ must first be removed.
A. introns B. 3' poly A sequence C. exons D. enhancers
Evolution through natural selection will occur most rapidly for populations of plants that
A. are already well adapted to the environment. B. live in an unchanging environment. C. are in the same genus. D. reproduce sexually and live in an unstable environment