Exam 10: Patterns of Inheritance

____ is the most fatal genetic disorder in the United States.

In cats, short hair ( L ) is dominant to long hair ( l ). If a short-haired cat of unknown genotype is crossed with a long-haired animal, and they produce one long-haired kitten and one short-haired kitten, this would indicate that ____.

An individual's ____ determines its observable ____.

Purple flower ( A ) is dominant over white flower ( a ), and tall stem ( B ) is dominant over short stem ( b ). The Punnett square represents a cross between two dihybrids ( AaBb   ´   AaBb ). In the figure above, what would be the genotype of plant #7?

Purple flower ( A ) is dominant over white flower ( a ), and tall stem ( B ) is dominant over short stem ( b ). The Punnett square represents a cross between two dihybrids ( A aBb   ´   AaBb ). In the figure above, how many plants would have purple flowers and tall stems?

Cystic fibrosis is a recessive disorder. If a couple, each of whom is heterozygous for the CFTR mutation, have children, what is the probability that they will have a child with cystic fibrosis?

In Siamese cats, enzymes that code for dark fur color 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 ____.

The switching between asexual and sexual reproduction by water fleas is controlled by ____.

In the Bombay phenotype, a gene in the recessive condition blocks the expression of A and B red blood cell antigens. Thus, all A, B, and AB genotypes are expressed as the O phenotype. This is an example of ____.

Six fingers on one hand would be classified as a(n) ____.

In an autosomal dominant disorder such as Huntington's disease, two carrier parents have the probability of passing the gene onto ____ of their children.

When Gregor Mendel first started his genetics experiments, he ____.

The most common type of mutation that causes cystic fibrosis is a(n) ____.

The main problem for those with cystic fibrosis involves ____.

The discarded theory of blending inheritance most closely resembles ____.

Purple flower ( A ) is dominant over white flower ( a ), and tall stem ( B ) is dominant over short stem ( b ). The Punnett square represents a cross between two dihybrids ( AaBb   ´   AaBb ). In the figure above, what would be the genotype of plant #9?

A pleiotropic gene ____.

____ raises miscarriage risks by 2-10 percent and is rarely performed.