Exam 9: Patterns of Inheritance

For this problem, you may want to create a Punnett Square on a separate piece of paper. Manuel has both cystic fibrosis, a recessive disorder, and sickle cell anemia which is also a recessive disorder. Manuel's partner, Lucretia, is normal for both conditions. What is the probability that Manuel and Lucretia will have a normal child without either of the conditions Manuel has?

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

The main problem for those with cystic fibrosis involves which of the following?

In Tay-Sachs disease, which organelle is affected?

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

What type of inheritance does the "cystic fibrosis" gene exhibit?

In genetic analyses, researchers know that linkage of genes will introduce exceptions to the principle of

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?

Why has cystic fibrosis persisted at such a high percentage in some populations?

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 ). Examine the figure above, and answer the following question(s). In the figure above, how many plants would have purple flowers and tall stems?

Down syndrome

Amniocentesis involves sampling

Females are less likely to have an X-linked recessive disorder than males because

An autosomal recessive disorder

Six fingers on one hand would be classified as

Which of the following organs are likely to be affected by a defective CFTR protein?

A boy inherits his X chromosome from

In a Punnett square, the letters on top of the square and on the side of the square represent

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

To what disease do individuals heterozygous for cystic fibrosis have increased resistance?