Exam 9: Patterns of Inheritance

Albinism is a recessive disorder.Rapinder is an albino and his partner,Janeen has normal pigmented skin.Her father was also an albino.Janeen is pregnant and Rapinder is the father.What is the probability that they will have normal pigmented child?

In Duchenne muscular dystrophy,which protein is directly affected?

Males more commonly are affected by X-linked recessive genetic disorders than are females because

If red coat is homozygous dominant in horses and white coat is homozygous recessive,in a cross between a homozygous dominant red-coated horse and a white-coated horse,what would the result be in the offspring?

In a person with cystic fibrosis,the mutation causes which of the following to happen?

What two types of melanin are made by melanosomes?

Amniocentesis involves sampling

A(n)____ is an offspring of a cross between two individuals that breed true for different forms of a trait.

Regarding infection,what is the problem with cystic fibrosis?

Genetic recombination as a result of crossing over occurs more readily in genes

Siamese cats have enzymes that code for dark fur color but are only active in cooler temperatures.Thus,the tips of a Siamese cat's ears,feet,and tail are dark but not the warmer regions of its body core.This is an example of

Human eye color is an example of a trait that

What tool do geneticists use to study the genetics of families through generations?

Classification.Answer the questions in reference to the five disorders listed below. a.Turner syndrome b.PKU c.Hutchinson-Gifford progeria d.hemophilia e.Tay-Sachs -disorder that occurs when an amino acid is not converted to tyrosine

In a pedigree chart,a male who does NOT demonstrate the trait being studied is represented by

If two individuals both heterozygous for the same genes (e.g.,AaBb)mate and have offspring,how many different phenotypes will there be?

Genes that are located on the same chromosome

Which of the following determines an observable trait?

When two alleles of the same gene are identical,the individual carrying those alleles is said to be

Turner syndrome is a