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If a plant having yellow and round seeds...

If a plant having yellow and round seeds was crossed with another plant . having green and wrinkled seeds then `F_1` -progeny are in the ratio :

A

`15:1`

B

`1:15`

C

`1:13`

D

All yellow & round seeds

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The correct Answer is:
D
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In garden pea , yellow colour of cotyledons is dominant over green and round shape of seed is dominant over wrinkled . When a plant with yellow and round seeds is crossed with a plant having yellow and wrinkled seeds , the progeny showed segregation for all the four characters . The probability of obtaining green round seeds in the progeny of this cross is :

When a pure strain of tall plants (TT) with round seeds (RR) is crossed with a pure strain of short plants (tt) with wrinkled seeds (rr), an F_(1) generation is produced. The alleles for short and wrinkled are recessive to those for tall and round, respectively. When these F_(1) plants self-pollinate, what proportion of the F_(2) generation is short with wrinkled seeds ?

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In pea plants , yellow seeds are dominant to green . If a heterozygous yellow seeded plant is crossed with a green seeded plant , what ratio of yellow and green seeded plants would you expect in F_1 - generation ?

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USHA PUBLICATION-HEREDITY & VARIATION -EXERCISE
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  2. Law of Mendel , which is not completely applicable is ?

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  15. In a dihybrid cross , in F2 generation , the parental types are far gr...

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  17. Fill In The blank : The phenotypic ratio and genotypic ratio of monohy...

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  18. Fill In The blank : Crossing over takes place in ……………………

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