Question

Which of the following is a test cross?

Tt $\times$ tt

TT $\times$ tt

Tt $\times$ Tt

tt $\times$ tt

Solution

Tt $\times$ tt

A test cross is a cross between heterozygous F₁ hybrid and double recessive homozygous eg, Tt $\times$ tt to show whether F₁ is homozygous or heterozygous.

Some More Questions From Principles of Inheritance and Variation Chapter

Give one example of genetic trait for each of the following in humans : (i) Lethality (ii) Multiple allelism.

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Principles Of Inheritance And Variation

Which of the following is a test cross?

Tt $\times$ tt

TT $\times$ tt

Tt $\times$ Tt

tt $\times$ tt

Some More Questions From Principles of Inheritance and Variation Chapter

Give one example of genetic trait for each of the following in humans : (i) Lethality (ii) Multiple allelism.

What for symbols AA and Aa stand ?

Mention the phenomenon of pleiotropy by giving an example.

Name the plant that shows incomplete dominance in respect of the colour of its flower.

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Principles Of Inheritance And Variation

Which of the following is a test cross? Tt ×tt TT ×tt Tt ×Tt tt ×tt

Some More Questions From Principles of Inheritance and Variation Chapter

Give one example of genetic trait for each of the following in humans : (i) Lethality (ii) Multiple allelism.

What for symbols AA and Aa stand ?

Mention the phenomenon of pleiotropy by giving an example.

Name the plant that shows incomplete dominance in respect of the colour of its flower.

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which of the following is a test cross?

Tt $\times$ tt

TT $\times$ tt

Tt $\times$ Tt

tt $\times$ tt