Tay-Sachs disease is a metabolic disorder that results in deterioration of the brain and nervous system, causing an early death in children (usually by gae 5). the disease is caused by a recessive allele(t). Staurt and Lauren's first child had Tay-Sachs disease. Lauren is pregnant again. State the phenotypes of both parents and their first child. what are the chances their second child will have the disease.

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A: DNA ( deoxyribonucleic acid) is the genetic material that the organism inherits from the parental…

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Q: In

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Q: Which genotype is homozygous? O aaBb O Aabb O AAbb O AABB

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A: Genes are found in pairs. Your mom gives you one set and your dad gives you the other.

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A: Haemophilia is a X linked resessive disorder.

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Q: When a trait is only expressed in the presence of two identical alleles, the genotype is Select one:

A: Answer: ALLELES = These are the alternative forms of genes present in an individual.

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Q: Q2

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A:

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.