(D) When a dihybrid cross is performed between plants with round yellow seeds $(RRYY)$ and wrinkled green seeds $(rryy)$,the $F_{1}$-generation produc

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Round yellow,round green,wrinkled yellow,and wrinkled green seeds

(D) When a dihybrid cross is performed between plants with round yellow seeds $(RRYY)$ and wrinkled green seeds $(rryy)$,the $F_{1}$-generation produces all heterozygous plants with round yellow seeds $(RrYy)$.When these $F_{1}$ plants are self-pollinated to obtain the $F_{2}$-generation,the law of independent assortment applies.The phenotypic ratio obtained in the $F_{2}$-generation is $9:3:3:1$.This results in four types of phenotypes: round yellow,round green,wrinkled yellow,and wrinkled green seeds.

Class 12 Biology Principles of Inheritance and Variation Inheritance of two gene

Medium

In Mendel's experiments with garden pea,round seed shape $(RR)$ was dominant over wrinkled seeds $(rr),$ and yellow cotyledon $(YY)$ was dominant over green cotyledon $(yy).$ What are the expected phenotypes in the $F_{2}$-generation of the cross $RRYY \times rryy$?

A
Only round seeds with green cotyledons
B
Only wrinkled seeds with yellow cotyledons
C
Only wrinkled seeds with green cotyledons
D
Round yellow,round green,wrinkled yellow,and wrinkled green seeds

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Class 12 Questions

Class 12

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Chapter

Principles of Inheritance and Variation

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Inheritance of two gene

Heterozygous round and yellow seeded pea plants were selfed and a total of $800$ seeds were collected. What is the total number of seeds with the first dominant trait (round) and the second recessive trait (green)?

Medium

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In Mendel's pea plants,round seeds $(RR)$ are dominant over wrinkled seeds $(rr)$,and yellow cotyledons $(YY)$ are dominant over green cotyledons $(yy)$. What will be the phenotypic ratio in the $F_2$ generation of a cross between $RRYY$ and $rryy$?

Medium

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$A$ cross between plants having $RRYY$ and $rryy$ composition will yield plants with

Medium

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Which genotype represents a true dihybrid condition?

MediumAIPMT 1991

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In peas,tallness is dominant over dwarfness and red colour of flowers is dominant over the white colour. When a tall plant bearing red flowers was pollinated with a dwarf plant bearing white flowers,the different phenotypic groups were obtained in the progeny in numbers mentioned against them:
Tall,Red $= 138$
Tall,White $= 132$
Dwarf,Red $= 136$
Dwarf,White $= 128$
Mention the genotypes of the two parents and of the four offspring types.

Medium

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In Mendel's experiments with garden pea,round seed shape $(RR)$ was dominant over wrinkled seeds $(rr),$ and yellow cotyledon $(YY)$ was dominant over green cotyledon $(yy).$ What are the expected phenotypes in the $F_{2}$-generation of the cross $RRYY \times rryy$?

Similar Questions

Heterozygous round and yellow seeded pea plants were selfed and a total of $800$ seeds were collected. What is the total number of seeds with the first dominant trait (round) and the second recessive trait (green)?

In Mendel's pea plants,round seeds $(RR)$ are dominant over wrinkled seeds $(rr)$,and yellow cotyledons $(YY)$ are dominant over green cotyledons $(yy)$. What will be the phenotypic ratio in the $F_2$ generation of a cross between $RRYY$ and $rryy$?

$A$ cross between plants having $RRYY$ and $rryy$ composition will yield plants with

Which genotype represents a true dihybrid condition?

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