Unit #6 Genetics Review

Front

What is Gel Electrophoresis?

Back

A laboratory method used to separate DNA fragments based on their size by applying an electric field to a gel matrix.

Front

What does a Karyotype represent?

Back

A visual representation of an individual's chromosomes, used to identify chromosomal abnormalities.

Front

What is a chromosomal abnormality?

Back

A deviation from the normal number or structure of chromosomes, which can lead to genetic disorders.

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

What is Incomplete Dominance?

Back

A form of inheritance where the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes.

Front

What is Co-Dominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

Why are males more likely to be color-blind than females?

Back

Color-blindness is often linked to genes on the X chromosome; males have only one X chromosome, so a single recessive allele will result in color-blindness.

Front

What is a Pedigree Chart?

Back

A diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

Front

What is a Punnett Square?

Back

A diagram used to predict the genotypes of a particular cross or breeding experiment.

Front

What is a recessive trait?

Back

A trait that is only expressed in the phenotype when two copies of the recessive allele are present.