28. There are two alleles (Al and A2) at the locus for flower colour. If 36% of the plants in the population are AJA1 for flower colour, what is the frequency of plants with the heterozygous genotype? a. 0.16 b. 0.36 c. 0.24 d. 0.48

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Nestor RutherfordLv2

17 Sep 2018

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Related questions

If a student was working on an experimental population of pea plants. The student crossed plants that were reddish-purple and gave long pollen to other plants that were pink and gave round pollen and he wrote the genotypes of the plants in cross: R L / r l x r l / r l. (Flower colour = R=reddish-purple, r = pink) and pollen shape (L = long, r = round). Choose best option for completing sentence in his notebook. If the two loci, flower colour and pollen shape, are not linked, l would expect ____ of progeny of this cross to be R L / r l.

Options are

3, 25%, 100%, 75 %, and None .

29. You test if this population of plants is in Hardy-Weinberg equilibrium at the flower colour locus. You conduct a chi-square test to compare the observed and expected frequencies of the two alleles. Your calculated chi-square value is 4.26. If the critical chi-square value is 3.84, which statement is FALSE? a. There is a significant difference between the observed and expected allele frequencies at this locus in the population. b. There has been a significant change in the allele frequencies at this locus from generation to generation. c. The population is in Hardy-Weinberg equilibrium at this locus.. d. Some evolutionary force is at work at this locus.

. In wild petunias, the allele for red flower color (R) is dominant over the allele for white flower color (r). We sample a population and find 750 plants have white flowers and 270 have red flowers. If the population is in HWE, what are the allele frequencies of R and r in this population? How many of the 270 plants that have red flowers are homozygous and how many are heterozygous at the flower color locus? Show your work and round allele frequencies to two decimal places.