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Having an Autosomal Dominant Trait - Assignment Example

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The author of the paper "Having an Autosomal Dominant Trait" will begin with the statement that the pattern of inheritance for Huntington's Disease in his\her family is autosomal dominant. This means that the trait will be expressed in persons with even a single pair of the mutant allele…

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Subject: Biology
Type: Assignment
Level: Ph.D.
Pages: 1 (250 words)
Downloads: 2
Author: tyreekarmstrong

Extract of sample "Having an Autosomal Dominant Trait"

Cloning can be a solution Brad will have to take.

Inheritability of infantile polycystic kidney disease (autosomal recessive) from carrier parents.

Parents (male/female)

Ai Bi

ABi

Ai B

A B

¼ of the offsprings (25%) will express the disease phenotypically.

½ of the offsprings (50%) will be carriers of the trait, while the rest 25% will be normal.

Sex-linked traits

Sex-linked traits are those traits that are transmitted through the sex chromosomes. An X-linked disorder will be manifested in all males with the trait but the females can be carriers. For a daughter to be color-blind, the father must manifest the trait phenotypically while the mother can be a carrier. This supports Ken’s case because Ken must be color-blind if the daughter is to express the trait.

Gina’s Case

Gina's blood lacks the Rhesus factor while the husband is rhesus positive. The first child, having been delivered at home has an unknown blood group. In case she is rhesus positive, this would mean that during her in-utero development, the mother’s body produced anti-Rhesus antibodies. If the second pregnancy happens to be of a similar blood-group baby, the antibodies will fight and destroy the baby’s red blood cells leading to hemolysis.

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