A mutant dwarf tomato plant with yellow fruit is self-fertilized and the following progeny are produced:...
A mutant dwarf tomato plant with yellow fruit is self-fertilized and the following progeny are produced:
Normal size, yellow fruit: 39 plants
Normal size, red fruit: 13 plants
Dwarf, yellow: 111 plants
Dwarf, red : 35 plants
a. What are the phenotypes, alleles, and possible genotypes for the two traits? For the alleles designations, you must use the common convention for assigning alleles for plants, includes symbols consistent with how alleles interact.
b. What is the most likely genotype of the plant that was self-fertilized?
Homework Answers
Answer:
Based on the information, dwarf (D) is dominant over Norma size (d) and yellow (Y) is dominant over red (y).
As all traits are produced and numbers of alll phenotypes are more or less resemble to 9:3:3:1. Hence, the genotype of the plant that was self-fertilized = DdYy
DdYy x DdYy ----- parents
Progeny;
D_Y_= 9/16= dwarf, yellow
D_yy = 3/16= dwarf, red
ddY- = 3/16= normal size, yellow
ddyy = 1/16= normal size, red
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