Unit 6 Test Retake: The Human Genome

Front

What is the genotype of an individual with an autosomal recessive disorder?

Back

hh

Front

What is the percent chance that daughters will inherit Red-Green Colorblindness from X-linked recessive parents?

Back

0%

Front

Which genotype is represented by X^B Y in a Punnett square?

Back

Male with normal vision

Front

What is the percent chance that sons will inherit Hemophilia from X-linked recessive parents?

Back

0%

Front

What is nondisjunction?

Back

The failure of homologous chromosomes or sister chromatids to separate normally during meiosis.

Front

What does X-linked recessive mean?

Back

A trait that is carried on the X chromosome and expressed in males who have only one X chromosome.

Front

What is a Punnett square used for?

Back

To predict the genotypes of offspring from parental genotypes.

Front

Define autosomal recessive disorder.

Back

A genetic condition that requires two copies of the recessive allele for the trait to be expressed.

Front

What is the significance of the red box in a Punnett square?

Back

It often represents a specific genotype or phenotype of interest.

Front

What does it mean if a pedigree shows a trait skipping generations?

Back

It may indicate that the trait is recessive.