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Question

Test cross is used to check
  1. Heterozygosity in F2 generation
  2. Segregation
  3. Heterozygosity in F1 generation
  4. Independent assortment

A
Heterozygosity in F1 generation
B
Independent assortment
C
Heterozygosity in F2 generation
D
Segregation
Solution
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A cross is made between F1 hybrid and recessive parent is called Test cross. In the next generation 50% progeny are heterozygous dominant and 50% progeny are homozygous recessive plants are formed in 1:1 ratio.

So, the correct option is ‘1:1’.
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Similar Questions
Q1
When two parents are crossed, the offspring are referred to as :
(a) recessives
(b) test cross
(c) F1 generation
(d) F2 generation
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Q2

Select the correct pairs from the given options

A. Dihybrid cross – Independent assortment of characters

B. Back cross – F1 hybrid crossed only to homozygous recessive parent

C. Monohybrid cross – Dominance-recessiveness

D. Test cross – Identifying the genotype of hybrid progeny
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Q3

A common test to find the genotype of a hybrid is by

(a)crossing one of the F2 progeny with male parent.

(b)crossing one of the F2 progeny with female parent

(c)studying the sexual behaviour of F1 progenies

(d)crossing of one F1 progeny with male parent

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Q4
Which of the following statement(s) is /are correct regarding the Mendelian dihybrid cross?
A. The F2 phenotypic ratio is 9 : 3 : 3 : 1
B. Law of independent assortment can be explained on the basis of the dihybrid cross
C. F2 generation is obtained through the cross between F1 plants with one of the two parental plants
D. The gametes produced by F1 plants are of 4 types in 1:1:1:1 ratio.
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Q5
Dihybrid test cross involves crossing of F1 dihybrid to
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