Which of the following genotypes is heterozygous?Multiple choice question.YyYYyyYYww
Question
Which of the following genotypes is heterozygous?Multiple choice question.YyYYyyYYww
Solution
The heterozygous genotype among the options given is Yy.
Here's why:
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A genotype is the set of genes in our DNA which is responsible for a particular trait.
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The two types of genotypes are homozygous (where the two genes are the same - either dominant or recessive) and heterozygous (where the two genes are different - one dominant and one recessive).
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In the options given, YY and yy are homozygous genotypes because they contain the same type of genes. YY is homozygous dominant and yy is homozygous recessive.
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Yy is a heterozygous genotype because it contains one dominant gene (Y) and one recessive gene (y).
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The option "ww" is not clear. If "w" represents a gene, then "ww" would be a homozygous genotype, either dominant or recessive depending on whether "w" is a dominant or recessive gene.
So, the heterozygous genotype in the options provided is Yy.
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