Differentiate Between Homozygous and Heterozygous - Biology

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Differentiate between Homozygous and Heterozygous

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Solution

Homozygous Heterozygous
They have a similar alleles (TT or tt) for a triat. Have dissimilar alleles (Tt) for a triat
Contains either dominant (TT) or recessive (tt) alleles but not both types(Tt) Contains both-dominant and recessive alleles (Tt)
They are true-breeding for a specific trait and produce progeny having same genotypes and phenotyes on selfing they are not true-breeding and produce offspring having three genotypes and mostly two or some time three phenotpyes
Only one type of gametes are formed either 'T' ot 't' type only not both

Produce two types of gametes containing 'T' as well as

't'

   
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Chapter 5: Principles of Inheritance and Variation - Exercises [Page 93]

APPEARS IN

NCERT Biology Class 12
Chapter 5 Principles of Inheritance and Variation
Exercises | Q 2.2 | Page 93

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