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Principles Of Inheritance And Variation
Question
What is a test cross? How can it decipher the heterozygosity of a plant?
Solution
Test cross is a cross between an organism with unknown genotype and recessive parent
It is used to determine whether the Individual is homozygous or hetrozygous for a trait If the progeny produced by a test cross show 50% dominant trait and 50% recessive trait then unknown individual is hetrozygous for a trait on other hand if the progeny produced shows dominant trait then the unknown individual is homozygous for trait.
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Some More Questions From Principles of Inheritance and Variation Chapter
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 ?
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 ?
Why is male Drosophila regarded as heterogametic ?
Mock Test Series
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