Lecture 9: Genetic Inheritance

Flashcards covering key concepts and terms discussed in the lecture on genetic inheritance.

SNPs (Single nucleotide polymorphisms)

are variations in a single nucleotide base pair in the genome that occur at a specific position. These variations can act as biological markers, helping scientists locate genes associated with disease. They are the most common type of genetic variation among people

Incomplete Dominance

A genetic situation in which one allele does not completely dominate another allele.

Codominance

A genetic scenario where both alleles in a heterozygous individual contribute equally to the phenotype.

Hex A

An enzyme involved in breaking down fatty structures in the brain (GM2 gangliosides); deficiency can lead to Tay Sachs disease.

Blood Type Classification

Determined by the presence of specific antigens on red blood cells, such as A, B, AB, and O.

X-linked Recessive Disorders

Disorders associated with genes on the X chromosome, more prevalent in males.

Autosomal recessive inheritance

A pattern of inheritance where two copies of an abnormal gene on an autosome must be present in order for the disease or trait to develop