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21 April, 07:18

Mendel's experiments with pea plants demonstrated the law of dominance: trets are inherited as dominary and

recessive alleles, and the dominant allele for trait can mask the presence of the cessive altele. Occasion lly, that

law is contradicted: offspring exhibit a blend of the parents' traits. For example a red flowering plant

w crossed

with a white flowering plant would produce a plant with pink flowers. In a genetic ross between botrygous red

Flowering plant and a heterozygous pink flowering plant, predict the probability of Having offspring in rei rowery

0%

25%

50%

100%

+4
Answers (2)
  1. 21 April, 07:56
    0
    The probability of progenies to have red flower is 50%.

    Explanation:

    The phenomenon where the two pure alleles of a particular character present in an individual gives a mixed appearance is called incomplete dominance, where the dominant character cannot fully mask the presence of a recessive character.

    Here In the cross between a red flowering plant and the pink flowering plant, the character shows the incomplete dominance.

    Let the allele for dominant character i. e red flower be R and recessive character white be r.

    So the genotype for red flowering plant = RR.

    The genotype for pink flowering plant = Rr.

    The gametes from red flowering plant = R.

    The gametes from pink flowering plant = R and r.

    So with the cross, the genotype of the offsprings will be 50% RR and 50% Rr.

    So plants with red flowers will be 50% of the whole progeny.
  2. 21 April, 08:44
    0
    50% is the answer
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