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Assertion (A) : Test cross is done betwe...

Assertion (A) : Test cross is done between `F_2` hybrid with `F_1` recessive
Reason (R) : It helps to identify the homozygosity of hybrids.

A

A and R are correct R explains A

B

A and R are incorrect

C

A is correct R is incorrect

D

A is incorrect R is correct

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The correct Answer is:
B
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The cross that helps to identify the heterozygosity of the hybrid.

Statement 1 : Test cross is done between F_1 individual with homozygous recessive Statement 2 : If F_1 individual is homozygous , the rate of a monohybrid cross will be 1 : 1

The back Cross of F1 hybrid with the recessive parent is called

A cross between F1 hybrid and recessive parent (Tt x tt) gives a ratio

Assertion: Test cross is a cross between an individual of unknown genotype with a homozygous recessive. Reason: Only the recessive character of an individual can be identified.

Assertion (A): Hybrids show increased growth and elevated yield. Reason (R): F_(1) hybrids show Heterosis.

Assertion : Test cross is the cross between the F_(1) progeny and either of the parenty types Reason : Back cross is rhe cross between F_(1) progeny and the double recessive genotype

Assertion (A) : Hybridization is the method of producing new crop varieties. Reason (R) : Hybridization offers improvement in crop.

How can we reverse the sterility of F1 hybrid?

FULL MARKS-CLASSICAL GENETICS -Additional Questions (1- Mark Questios)
  1. Match the following {:("Gene interactions",F2 "Phenotype ratio"),("(...

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  2. In an intergenic interaction , the gene that suppresses the pherotype ...

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  3. Assertion (A) : Test cross is done between F2 hybrid with F1 recessive...

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  4. Assertion (A) : Codominace is an example for intragenic interaction ...

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  5. Assertion (A) : Pleiotropic gene affects multiple traits Reason (R )...

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  6. Assertion (A) : Cytoplasmic male sterility is a Mendelian inheritance ...

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  7. What is the phenotypic ratio in case of incomplete dominance

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  8. Identify the mismatched pair

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  9. Statement 1 : Intergenic gene interaction occurs between alleles at sa...

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  10. Statement 1 : Test cross is done between F1 individual with homozygous...

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  11. Identify the incorrect statement

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  12. In case of co - dominance , monohybrid F1 ............is 1 : 2 : 1

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  13. Identify the wrong statement (s) (i) Monohybrid cross involves the i...

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  14. Result of incomplete dominance is ...............

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  15. Heterozygous Tall mono hybrid is cross with homozygous recessive . Wha...

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  16. ABO blood group in human is an example of

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  17. RR (Red) flower of Mirabilis is crossed with White (WW) flowers. Resul...

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  18. How many genetically different gametes are produced by a plant have ge...

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  19. When a single gene influences multiple traits then the phenomenon is c...

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  20. According to Mendel, which is not a dominant trait ?

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