Name: 18. A. In a plant, one gene determines flower color and an independently a

ID: 199756 • Letter: N

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Name: 18. A. In a plant, one gene determines flower color and an independently assorting cr and determines the leaf shape. In this plant, the flowers are either red (R) or w the leaves are either long (L) or short (). Determine the probability that a pia genotype R/r: L/I will be produced from parental plants of the following gen white (r) in color and a plant of the genotypes: R/r; L/1 and R/r:/l. the B. In another cross, involving parent plants of unknown genotype and phenotype, t following offspring were obtained. Determine the genotypes and phenotypes of the parents. 3/8 red, long 3/8 red, short 1/8 white, long 1/8 white, short Offspring

Explanation / Answer

a) The cross between the parents of genotypes

RrLl and Rrll

Parental genotypes RrLl * Rrll

gamates- RL Rl rL rl Rl rl

F1 generation-

So the propobility of RrLl genotype in the offsprings is 2/8.

Rl rl RL RRLl RrLl Rl RRll Rrll rL RrLl rrLl rl Rrll rrll

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Name: 18. A. In a plant, one gene determines flower color and an independently a

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Name: 18. A. In a plant, one gene determines flower color and an independently a

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