What are the differences between homozygous and heterozygous ?

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Answer:

Homozygous Heterozygous

1. It refers to having two identical alleles for a single trait. 1. It refers to having two different alleles for a single trait.

2. For example, for long pea plant homozygous combination is ‘TT’ 2. For example, for long pea plant heterozygous combination is ‘Tt’

3. On self pollination homozygous plants produce homozygous plants only. 3. On self pollination heterozygous plants produce homozygous dominant, heterozygous dominant and homozygous recessive plants in 1: 2 :1 ratio respectively.

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What is the Fundamental difference between Homozygous and Heterozygous conditions?

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Homozygous	Heterozygous
1. It refers to having two identical alleles for a single trait.	1. It refers to having two different alleles for a single trait.
2. For example, for long pea plant homozygous combination is ‘TT’	2. For example, for long pea plant heterozygous combination is ‘Tt’
3. On self pollination homozygous plants produce homozygous plants only.	3. On self pollination heterozygous plants produce homozygous dominant, heterozygous dominant and homozygous recessive plants in 1: 2 :1 ratio respectively.