The study’s finding that children with light-colored eyes are likely to have parents with light-colored eyes does not conclusively indicate whether the light eye color trait is dominant or recessive. This correlation suggests a genetic link, but without knowing the eye colors of all family members, including those with dark eyes, it’s impossible to determine the dominance pattern. Both dominant and recessive traits can appear frequently in a population, depending on the genetic makeup of the parents.

Let’s discuss in detail

Introduction to Eye Color Inheritance

Eye color inheritance in humans is a complex genetic trait influenced by multiple genes. The study of eye color patterns in families can provide insights into genetic inheritance, but determining whether a trait is dominant or recessive requires a comprehensive understanding of these patterns.

Study Findings on Eye Color

A study found a significant occurrence of light-colored eyes in children whose parents also have light-colored eyes. This observation suggests a genetic predisposition towards light eye color within these families.

Genetic Link vs Dominance

While the study indicates a genetic link for light eye color, it does not directly address the dominance or recessiveness of this trait. Dominance is determined by how traits are expressed in offspring when different alleles are present, not just by the frequency of a trait in a population.

Understanding Dominant and Recessive Traits

In genetics, a dominant trait is one that is expressed even when only one parent passes on the allele for that trait. A recessive trait, on the other hand, is expressed only when both parents contribute the allele for it. Without information on the eye color of all family members, especially those with contrasting eye colors, it’s challenging to determine the dominance pattern.

The Complexity of Eye Color Inheritance

Eye color is influenced by multiple genes, making it a polygenic trait. This complexity means that simple dominant-recessive patterns may not adequately explain the inheritance of eye color. Factors like gene interactions and varying degrees of pigment production contribute to the wide range of eye colors.

Download App for all Classes

Assessing Eye Color Dominance

In conclusion, the study’s finding that children with light-colored eyes often have parents with similar eye color suggests a genetic link but does not provide enough information to determine if light eye color is a dominant or recessive trait. A more detailed family history and understanding of the genetic mechanisms involved are necessary to make such a determination.

Discuss this question in detail or visit to Class 10 Science Chapter 8 for all questions.
Questions of 10th Science Chapter 8 in Detail

If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
How does the creation of variations in a species promote survival?
How do Mendel’s experiments show that traits may be dominant or recessive?
How do Mendel’s experiments show that traits are inherited independently?
A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits – blood group A or O – is dominant? Why or why not?
How is the sex of the child determined in human beings?
A study found that children with light-coloured eyes are likely to have parents with light-coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive? Why or why not?
Outline a project which aims to find the dominant coat colour in dogs.
How is the equal genetic contribution of male and female parents ensured in the progeny?