Explain how is it possible for brown eyed parents to have a blue eyed child. Which law does it illustrate? [5 MARKS] (2024)

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Explain how is it possible for brown eyed parents to have a blue eyed child. Which law does it illustrate? [5 MARKS]? ›

Answer. Brown-eyed parents can have a blue-eyed child if both carry a recessive allele for blue eyes, illustrating Mendel's Law of Segregation. The probability arises because the child inherits one allele from each parent.

Flexi Says: Two brown-eyed parents (if both are heterozygous) can have a blue-eyed baby. If both the parents have brown eyes, then there is generally a 25% chance for their child to have blue eyes. Because both the brown-eyed parents have a recessive blue-eye gene and can pass it to the next generation.

If two individuals who are heterozygous have children, then one would expect that 25% of their children would have blue eyes. For each child, there is a 25% probability of the child having blue eyes if both brown-eyed parents are heterozygous. A Punnett square for two heterozygous parents is shown.

Blue eyes + blue eyes = 100% chance of blue eyes. Brown eyes + blue eyes = 50% chance of blue eyes, but only if the brown-eyed parent carries a blue-eyed gene. If not, the chance is 0%. Brown eyes + brown eyes = 25%, but only if both parents carry the blue-eyed gene.

Eye color was traditionally described as a single gene trait, with brown eyes being dominant over blue eyes. Today, scientists have discovered that at least eight genes influence the final color of eyes.

While the global data on eye colors is limited, red and violet eyes are likely the rarest eye colors since they only affect a small group of people with albinism. But if you exclude eye colors brought on by albinism, then green and gray are likely the rarest.

Eiberg and his team write, “A shared haplotype among blue-eyed individuals is almost perfect and suggests the blue color phenotype is caused by a founder mutation.” This means that the vast majority of people with blue eyes share a single inherited genetic mutation, rather than each person with blue eyes possessing a ...

Two brown-eyed parents are likely (but not guaranteed) to have a child with brown eyes. If you notice one of the grandparents has blue eyes, the chances of having a blue-eyed baby go up a bit. If one parent has brown eyes and the other has blue eyes, odds are about even on eye color.

Sometimes, a change in eye color is just a simple part of aging and is harmless. However, there are a few things that can permanently change melanin levels. Ocular diseases, such as pigmentary glaucoma, can change melanin levels. Genetics could also cause eye color to change over time.

It can rarely occur as far south as Sri Lanka. However blue eyes are not found within the population of East Asia, due to the major pre-dominance of the brown eye gene in the area. Central Asians, people from the Caucasus, Afghans, Pakistanis, and even Indians darker then many an African are considered Caucasian.

Are brown or blue eyes sexier? ›

When broken down by gender, men ranked gray, blue, and green eyes as the most attractive, while women said they were most attracted to green, hazel, and gray eyes. Despite brown eyes ranking at the bottom of our perceived attraction scale, approximately 79% of the world's population sports melanin-rich brown eyes.

Black is not an eye color. While some eyes may look black, they're either just a very dark brown or large pupils.

Hazel Is Considered the Most Attractive Eye Color in Females

The female profile with the hazel eyes was matched with prospective dates 20.19% of the time.

Eye color genetics are extremely complicated. So far, researchers know of dozens of genes and DNA mutations that can affect eye color. So, while parents' eye colors are a major factor, they aren't the only one. And sometimes, eye colors skip generations.

Can I influence the colour of my baby's eyes? Your baby's eye colour is determined largely by genetics . Nothing you do or eat in pregnancy, or indeed after your baby is born, can change it. If both you and your partner have the same eye colour, there is a high chance your baby will too – but it's not a certainty.

If both parents have blue eyes, then it's almost a 100% chance that their kids will have blue eyes. Now if one parent has blue eyes and the other has brown eyes, then there is a zero to 50% chance of the child having blue eyes."

The inheritance pattern of eye color can vary depending on the genes involved. In general, brown eyes are dominant over green and blue eyes, meaning that if one parent has brown eyes and the other has green or blue eyes, their children are more likely to have brown eyes.