In pea plants, green pods (G) are dominant to yellow pods (g) and tall plants (T) are dominant to short plants (t). A scientist crosses a GgTt pea plant with a ggtt pea plant and the following offspring are produced: Phenotype Number of Offspring Green, tall 723 Yellow, short 749 Green, short 48 Yellow, tall 46 What is the percent recombination frequency for this cross

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ranichoubey506 ranichoubey506 · Answer 1 · 2020-03-24T07:56:35+01:00

Answer:

Explanation:

Given

Green pods (G) are dominant over yellow pods(g);

Tall plants (T) are dominant on short plant (t)

Parents are GgTt ( Green tall) and ggtt (yellow short), so their cross is;

Progeny;

Green tall 723.

Yellow short 749,

Green short 48,

Yellow tall 46

Green tall and yellow short are parental type, so they are non-recombinants;

so, 723 + 749= 1566 are non-recombinants;

Green short and yellow tall are recombinants ,

so 48+ 46=94 are recombinants;

Recombination frequency (RF)= Total no. of recombinants progeny / total progeny ×100

Total progeny= 1566;

Total recombinants= 94

RF= 94÷1566×100

= 6.0025%

topeadeniran2 topeadeniran2 · Answer 2 · 2021-11-30T21:29:48+01:00

The percent recombination frequency for this cross will be 6%.

Recombination frequency simply means the frequency where a single chromosomal crossover will take place between genes during meiosis.

The percent recombination frequency will be calculated thus:

= (48 + 46) / 1566 × 100

= 94/1566 × 100

= 6%

Therefore, the percent recombination frequency for this cross is 6%.

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