Identify the likeliest mode of inheritance and state

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Reference no: EM133497391

Case: For plants for which blue flower and purple seeds are dominant over white flowers and green seed, an F2 two-factor cross of blue flower/green seed and white flower/purple seed parents yields blue flower/purple seed, blue flower/green seed, white flower/purple seed, and white flower/green seed offspring.

a. What were the genotypes of the parents? List all possibilities.

b. Given the possible parental genotypes, generate the Punnet Square(s) for the offspring of all possible parent genotypes.

c. Assuming a diploid cell with variants on two different chromosomes, draw the metaphase I and II and the cells after telophase II/cytokinesis and identify one pair of sister chromatids, one pair of homologous chromosomes and one pair of heterologous chromosomes before and after cytokinesis.

d. The resulting counts of offspring from the counts were as follows:

blue flower/purple seed - 154
blue flower/green seed - 97
white flower/purple seed - 89
white flower/green seed - 54

Using the Chi-squared test, report the Chi-square value and whether there is support for rejecting the null hypothesis of independent assortment.

e. Based on the chi-squared analysis and patterns of offspring counts, identify the likeliest mode of inheritance and state the evidence supporting why you think that is the case.

Reference no: EM133497391

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