Exam 9: Patterns of Inheritance

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, how many plants would have white flowers and short stems?

Suppose a single nondisjunction event occurs during anaphase II of meiosis in a normal male cell from meiosis I. Of the resulting sperm, ____.

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

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 ____.

Red coat is dominant in horses and white coat is recessive. In a cross between a homozygous dominant red-coated horse and a white-coated horse, what genotype(s)would be observed in the offspring?

If tall ( D )is dominant to dwarf ( d ), and two homozygous varieties DD and dd are crossed, the progeny produced will be____.

An X-linked carrier is a ____.

If R is dominant to r , the offspring of the cross of RR with rr will ____.

The failure of which organ affected by a defective CFTR protein is likely to cause death in cystic fibrosis patients?

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

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?

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

Geneticists use ____ to study the genetics of families through generations.

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