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Principles Of Inheritance And Variation

Question

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In Pisum sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?

14

7

2¹⁴

2¹⁰

Solution

A.

14

Pisum sativum is a angiospermic plant. In angiosperms diploid chromosomes are present, that is, plant body belongs to sporophytic generation (2n).

In Pisum sativum, 2n=14

Therefore, there are 7 types of homologous pairs in Pisum sativum.

Some More Questions From Principles of Inheritance and Variation Chapter

Write the genotypes of man with blood group A.

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Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

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

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What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

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