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Ipatiy [6.2K]
3 years ago
14

A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the normal number of digits. Reme

mber that extra digits is a dominant trait. What fraction of this couple’s children would be expected to have extra digits?

Biology
2 answers:
Goryan [66]3 years ago
6 0

Each child inherits 50% of DNA from each parent

<h2></h2><h2>Further Explanation</h2>

In each nucleus of a human cell there is a material carrying property called DNA. This inheritance is due to the fusion of genes from father and mother, which produces child genes. Each DNA carries millions of proteins that have a combination of Adenine, Guanine, Thymine and Cytosine. Each different combination decreases different human traits.

So no wonder, a child can have his father's face, mother's hair, father's skin and eyes similar to Mother's. This is evidence of a decrease in the nature of the parents in the child.

Each child inherits 50% of DNA from each parent, but there are certain genes from the dominant Mother or Father. This is the reason the youngest's skin can be dark like Mother's but has a facial character more like his father's. While the Eldest's face can resemble the Mother but the color of his skin is more like his father's. if the faces of siblings and siblings look alike, that means they inherit a combination of similar genes.

Little can even inherit certain bodily expressions and postures such as the brow of the Mother who wrinkles when thinking. if the father experiences hair loss or baldness, the child can also experience it at a certain age.

The shape of the face along with certain characteristics such as high eyebrows, dimples, sharp nose or pug can be passed down in the family. Similarly, the shape of the hands, fingers, hair shape. Even the shape and position of one tooth with another can be the same. so often we see similar face shapes in a large family.

Learn  More

dominant trait : brainly.com/question/13247892

Detail

Class: Colleege

Subject: biology

Keywords : dominant trait, inheritance, ganes, expressions, characteristic, human traits

IPS

bonufazy [111]3 years ago
4 0

Answer:

1/2 or 50%

Explanation:

Given that the extra digit is a dominant trait, the man with an extra digit may be homozygous or heterozygous dominant for the trait.

However, having a daughter with his normal wife makes him heterozygous dominant. Let's assume that the genotype of the heterozygous dominant male is "Dd" and that of his wife is "dd".

The heterozygous dominant male and homozygous recessive female would have progeny in the following ratio= 1/2 Dd (child with extra digit): 1/2 dd (child with no extra digit).

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