Eye colour is determined by

One gene

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More than one gene

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No gene

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None of the above

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Solution

The correct option is B More than one gene
It was originally thought that eye color was a simple Mendelian trait, meaning it was determined by a single gene, with brown being dominant and blue recessive. It is now clear that eye color is a polygenic trait, meaning it is determined by multiple genes.

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Similar questions

Q. Identify the part of the eye which determines the eye colour.

Suppose eye colour of humans is governed by one gene. If black eye colour is dominant over green eye colour, then which letter correctly represents the dominant allele and the recessive allele respectively?

Q. Assertion (A): In Drosophila, the recombination frequency of the genes responsible for the eye colour and wing size is more than that of body colour and eye colour.
Reason (R): In Drosophila, the gene responsible for eye colour is more closely located to the gene for body colour as compared to the gene for wing size.
[0.7 mark]

In the fruitfly, red eye colour is ___________ _____ white eye colour.

In the fruit fly, red eye colour is ____ white eye colour.

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Eye colour is determined by

The correct option is B More than one geneIt was originally thought that eye color was a simple Mendelian trait, meaning it was determined by a single gene, with brown being dominant and blue recessive. It is now clear that eye color is a polygenic trait, meaning it is determined by multiple genes.