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Tay-Sachs disease is a genetic disorder caused by a recessive allele, leading to severe neurological decline and early death. It is particularly common among individuals of Ashkenazi Jewish descent, where the carrier rate is significantly higher. In contrast, the disease is rare in the general U.S. population and virtually absent in Black Americans, reflecting the varying prevalence of the recessive allele across different ethnic groups. This highlights the importance of genetic screening and understanding population-specific risks in genetic disorders.
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What is an allele that produce a trait in the heterozygous condition is?
homozygous
Condition where the pair of alleles for a characteristic are the same?
homozygous
A homozygous condition would be the possession of alleles for?
A homozygous condition would be the possession of alleles for red hair and red hair. A heterozygous condition would be characterized by the possession of alleles for brown hair and red hair.
What is the name of the condition when a person has inherited the genotype HH?
Homozygous dominant.
What are two possibilities for a specific trait?
Allele The specific trait may be either in homozygous or heterozygous condition. The expression of the trait depends on its dominant or recessive condition.
What refers to the genotypic condition that must be present for a recessive to be visible?
Homozygous recessive refers to the genotypic condition where an individual has two copies of the recessive allele that leads to the expression of a recessive trait.
An organism that has two identical alleles for a trait?
An organism that has two identical alleles for a trait is said to be homozygous for that trait. This means that both alleles are the same, either dominant or recessive. Homozygosity results in a consistent expression of the trait in the organism.
Condition that exists when the heterozygous phenotype is somewhere in between the two homozygous phenotypes?
Incomplete dominance
When two alleles of a pair are identical it is a condition if the two alleles are different this is a condition?
When two alleles of a pair are identical, it is referred to as homozygous. When the two alleles are different, it is referred to as heterozygous. Homozygous individuals have two identical alleles (e.g., AA or aa), while heterozygous individuals have two different alleles (e.g., Aa).
When the two alleles of a gene are the same, what term is used to describe this genetic condition?
When the two alleles of a gene are the same, this genetic condition is called homozygous.
In biology an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition?
carrier
How many americans have Lactose intolerance?
Adult lactose intolerance is the most common of all enzyme deficiencies, and it is estimated that 30-50 million Americans have this condition.
