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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Shweta Kumari posted an Question
February 23, 2023 • 21:50 pm
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30 points
30 points
- IIT JAM
- Biotechnology (BT)
In a diplo1d angiosperm species, flower colour is regulated by the r gene. rr and rr genotypes produce red flowers, whereas the rr genotype produces white flowe
In a diplo1d angiosperm species, flower colour is regulated by the R gene. RR and Rr genotypes produce red flowers, whereas the rr genotype produces white flowers. If two individual plants are randomly selected from a large segregating population of a genetic cross between RR and rr parents, the probability of both the plants producing red flowers is. (Rounded off to two decimal places)
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Nilanjana Sarkar
Given in question, in diploid angiosperms : 'RR' & 'Rr' are red flowers 'rr' are white flowers Genetic cross in between 'RR' & 'rr' will give 100% 'Rr' , i.e., red progenies. That means probability of getting 1 red flowers from random selection of the progenies of 'RR' & 'rr' cross is 1 (i.e. 100%) So, the probability of getting 2 red flowers from random selection of the progenies of 'RR' & 'rr' cross is = 1×1 (i.e. 100% × 100%) = 1 Two decimal number will be 1.00. So, the probable answer is 1.00. I'm attaching the supporting calculation for this question. Please tell me the year of this question. And is this of IIT JAM for sure? Let me know. And ofcourse if you have still problem with this question feel free to ask me.
0.56 h ans
Shweta Kumari then the solution will be as in the attachment.
hnn aise krne se ans to aa gya but ques m aisa f2 generation ka puch rha ye kaise pta chala
because question asked to select the plant whose phenotype is red. And in the population RR, Rr will be present because of the cross of RR, rr and Rr, Rr.