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blissful asked in Science & MathematicsBiology · 1 decade ago

help with some punnett squares?

1. When a tall plant is crossed with a short plant, some of the offspring are short. What are the genotypes of the parents and the offspring? What is the phenotypic ratio in the offspring? Show your punnett square work

Parent Genotypes: ___?___

Offspring Genotypes: ___?___

Phenotypic Ratio: ___?___

2. Three-fourths (3/4) of the plants produced by a cross between two unknown pea plants have axial flowers and 1/4 have terminal flowers. What are the genotypes of the parent plants? ___?___

Parent Genotypes: ___?___

3. What cross (parent genotypes) would result in 1/2 of the offspring having green pods and 1/2 of the offspring having yellow pods?

Parents:___?___

THANKS!!!

1 Answer

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  • 1 decade ago
    Favorite Answer

    1. Assuming that T is dominant and t is recessive:

    Tt, tt

    Tt, tt

    2 tall, 2 short

    2. Assuming A is dominant and a is recessive:

    Aa, Aa

    3. Assuming G is dominant and g is recessive:

    Gg, gg

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