Probability problems i) IMPOSSIBLE UNLIKELY EVEN CHANCE LIKELY CERTAIN 1-IN-6 CHANCE 4-IN-5 CHANCE

Que- a heterozygous cross for violet flowers and round seeds(VvRr) were taken. Calculate the probability that the offsprings will have 1. Round seeds and violet flowers 2. Wrinkled seeds and white flowers 3. Wrinkled seeds and violet flowers

Round seeds and violet flowers 41 nound eeds 1 Pao abibly Round deeds and violet

Wrinkled seeds and white flowers 14 d14 wun

wrinkled seeds and violet flowers usunke 114 x 314 = g/16

Binomial expansion Probability of an unordered combination of events are calculated with the help of binomial expansion. probability of unordered number of events n total number of events x-number of events in one category p-individual probability ofx q-individual probability of second category ! represents factorial P-

Example- if the cross is between two heterozygous purple flowers are taken Calculate the probability that the 4 out of 6 plants will be purple n! Rr 6*5*4*3*2*1 4*3*21 (2*1) Rr 1215 4096 0.29 or 30%

Que- If two parents are heterozygous for a recessive trait, have six children. What is the probability that:- 1. First 4 children will be normal and last 2 Will be diseased 2. 4 children will be normal and 2 will be diseased

First 4 children will be normal and last 2 will be diseased n! p'qn-x R RR Rr P (3 /4)4(1 / 4)2 Rr P81 4096

Que-color blindness is a recessive x-linked trait in humans. If a heterozygous female has a child with normal male. Calculate the probability of 1. Affected child 2. 3 out of 5 children are affected

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Manisha Malhotra

Msc in microbiology with gold medal, qualified GATE and Uttarakhand-set. Admin of the you tube channel Manisha Malhotra
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Sai Kranthi

2 years ago

Very Good factual analysis... Thank you..!!!

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