Question

In tomato plants, the production of red fruit color is under the control of an allele RR. Yellow tomatoes are rrrr. The dominant phenotype for fruit shape is under the control of an allele TT, which produces two lobes. Multilobed fruit, the recessive phenotype, have the genotype tttt. Two different crosses are made between parental plants of unknown genotype and phenotype. Use the progeny phenotype ratios to determine the genotypes and phenotypes of each parent.
Cross 1 progency 3/8 two-lobed, red
3/8 two-lobed, yellow
1/8 multilobed, yellow
Cross 2 progency 1/4 two-lobed , red
1/4 two-lobed, yellow
1/4 multirobed red
1/4 multilobed yellow

Answer 1

Answer and Explanation:

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