In one of his experiments, Mendel crossed homozygous yellow plants with homozygous green plants. The resulting F1 generation was allowed to self-fertilize. The F2 generation produced 930 yellow seeds and 305 green seeds. What are the genotypes of this F2 generation? O YY : yy O Yy: yy O Yy: yy ҮҮ: Үу: У

Round (R) seed shape is dominant to wrinkled (r) seed shape in pea plants. If an RR plant is crossed with an rr plant, what is the frequency of phenotypes in the F2 generation? 1)1/4 RR, 1/2 Rr, 1/4 rr 2) All round seeds 3) 3 roundseeds, 1 wrinkled seed 4) All wrinkled seeds

Mendel crossed true-breeding plants with wrinkled and green peas to true breeding plants with round and yellow peas. Then he crossed the Fl plants to true-breeding plants with wrinkled, green peas and observed in the progeny 31 plants with round, yellow peas, 26 plants with round, green peas, 27 plants with wrinkled, yellow peas, and 26 with wrinkled, green peas. a) What proportion of these four phenotypes would be expected? b) Calculate the appropriate chi-square and determine if it is consistent with Mendelian expectations (be sure to indicate the probability range).

Mendel found that round (R) seed is dominant over wrinkled (r) seed, and yellow (G) seed is dominant over green (g) seed. The following crosses were made between plants of known phenotypes but unknown genotypes: 1) round, yellow X round, yellow 2) round, yellow X round, yellow 3) round, yellow X wrinkled, green b) Cross 1 2 Using the same symbols as defined above, list the genotypes of the parent plants in each cross. 3 round, yellow X round, yellow round, yellow X round, yellow round, yellow X wrinkled, green Which of the above crosses is a testcross? Offspring and ratio 3/4 round, yellow 1/4 wrinkled, yellow 9/16 round, yellow 3/16 round green 3/16 wrinkled, yellow 1/16 wrinkled, green MacBook Pro 1/4 round, yellow 1/4 round, green 1/4 wrinkled, yellow 1/4 wrinkled, green Focu