Progeny of Plant A Plant B Dd Pp 122 2 Dd pp 6. 82 82 dd Pp dd pp 124 4.

Two genes, m (apical meristem) and r (starburst rhizosomes), are linked on chromosome #5 in pea plants. Both genes are recessive to wild type and found to be 8 MU apart. If a wild type heterozygote is test- crossed, and produces 91 apical meristem plants and 8 apical, starburst plants from a total of 200 plants were produced, how many wild type plants will be produced? 4 8. 12 16

In soybeans, rough seeds (g) are recessive to wild-type glossy seeds (G), and blue flowers (p) are recessive to wild-type purple flowers (P). Two true-breeding plants with contrasting phenotypes for seeds and flower color were crossed (you will determine the parental phenotypes and genotypes as part of this question). The F1progeny are all wild-type. An F1 plant is then testcrossed and the following are obtained: Rough seeds, purple flowers              245 Glossy seeds, blue flowers                 223 Rough seeds, blue flowers                  18 Glossy seeds, purple flowers             25

Many of the color varieties of summer squash are determined by two different interacting genes A and B: AA or Aa gives white colored squash, aaBB or aaBb gives yellow squash, and aabb produces green squash.  A plant producing white squash is self-crossed. Three fourths of the offspring produces white squash; one fourth produces green squash. What is the genotype of the parent plant producing white squash?

In venetian violets, three phenotypes occur with respect to flower color: a deep violet (almost back), a white, and a pale lavender. Two pale lavender flowered plants have been crossed. The F1 from this cross has individuals with deep violet flowers, with pale lavender flowers, and individuals with white flowers. A. what are the parent genotypes? B. what would the expected phenotypic ratio be in these F1 plants?

You carry out a trihybrid cross (a cross in which the parental plants differ for three characters)  between a tall pea plant with round, yellow seeds (TT RR YY) and a short pea plant with wrinkled, green seeds (tt rr yy).  The parental plants are homozygous for all of the three characters. They are crossed to produce the F1 generation. Tall, round, and yellow are the dominant traits for each character. What will be the phenotypes of the F1 generation?

In garden pea, resistance to a certain disease is controlled by a single locus with dominance forresistance (R) and recessive susceptible (r). Another locus governs seed color with yellow being dominant (Y)to green (y). A pea plant which is heterozygous for both gene pairs is crossed with a susceptible and green-seeded plant. The following data was observed in the progeny. Phenotype                                NumberResistant yellow                           43Susceptible green                         49Resistant green                             16Susceptible yellow                         12Total                                               120 a. What is the calculated chi-square value based on an independent assortment assumption? Compute forthe df and write the conclusion. (NOTE: The cross will not yield a 9:3:3:1 ratio since not both of theparental genotypes are heterozygous for the 2 pairs of alleles. Thus, perform the cross first, show theparental genotypes, the gamete…