Question

152. In a dihybridcrow.pure red long potten pea plant wasgowed with white - short pollen peu
plant. I linkage between the two pures were 66%, then calculate the number of white-long
pollen plant among a total progeny of 1000
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Answer 1

Answer:

ANSWER

Given,

The linkage between the two genes= 66%

Therefore, the parental type i.e. pure red-long pollen pea plants and white-short pollen pea plants will be = 66% of 1000

                                                    =660 pea plants

Among 660 parental type, 330 plants will be red-long pollen pea plant and 330 will be white-short pollen pea.

Now, number of recombinant type pea plants i.e white-long pollen pea plants and red short pollen pea plants = 1000-660

                                                      = 340

Taking equal number of white-long pollen pea plants and red short pollen pea plants, the number of white pollen plant = 340/2

                                                                    = 170.

Thus, the correct answer is '170.'