Exam 10: Patterns of Inheritance

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?

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

Match the following terms to the correct label in the figure below.​ a.A b.B c.C d.D e.E -​heterozygous

For this problem, you may want to create a Punnett Square on a separate piece of paper. Manuel has 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?

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

Match the following terms to the correct label in the figure below.​ a.A b.B c.C d.D e.E -​dominant phenotype

Match the following terms to the disorder to which it corresponds. -​cystic fibrosis A)autosomal dominant disorder B)autosomal recessive disorder C)X-linked disorder

Match the following terms to the disorder to which it corresponds. -​hemophilia A)autosomal dominant disorder B)autosomal recessive disorder C)X-linked disorder

Match the following symptoms to the disorder to which they correspond. -​Turner syndrome A)mental impairment and heart defects B)mild mental impairment C)Sterility and mental impairment D)minimal abnormalities E)sterility, abnormal ovaries, and abnormal sexual traits

Match the following terms to the condition with which they best correspond. -​height in humans A)epistasis B)incomplete dominance C)codominance D)pleiotropy E)continuous variation

Match the following terms to the condition with which they best correspond. -​snapdragon flower color A)epistasis B)incomplete dominance C)codominance D)pleiotropy E)continuous variation

An autosomal recessive disorder ____.​

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

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 ____.

In humans, skin color is controlled by several genes. Thus, skin color is a(n) ____ characteristic.

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

If two individuals who are heterozygous for two traits that display incomplete dominance (e.g., AaBb) mate and have offspring, how many different phenotypes are possible?​

The ease of detecting and treating ____ is a good example of the advantages of genetic screening.

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

A gene that produces multiple effects is called a(n) ____.