Safari File Edit Mew History Bookmarks Window Help Chapter 6

Safari File Edit Mew History Bookmarks Window Help Chapter 6 Reading Quiz 1. Factors that inhibit genetic characterization indude aich the roli wing txctPT A. inability to conduct controlled genetic B. relatively small family sizes. O C. poor genealogic records. D. relatively long generation time. E. Actually, all of these are problems. 2. A pedigree that demonstrates an autosomal recessive trait, such as Tay Sachs disease, wa likely show all of the following cha ExCEPT A, mating between cousins. B. skipping of a generation by the trait. C, equal numbers of males and females affected. D, on average, half the offspring of carriers showing the trait. E. Actually, all of these are expected. 3. A pedigree of an autosomal dominant trat, such as familial hypercholesterolemia, wa Ikely show all of the following characteristics ExCEpT: A, skipping of a generation by the trait. of males and females affected. B, equal numbers ffected individuals do not pass on the individual will have the trait. of an D, half the offspring 4. An x-linked recessive trait, such as the most common form of hemophilia, hemophilia Ar will A. not be passed from father to son. B. be more common in males than C be passed by affected women to all of their sons. Remaining: 1:13:00 Start: 10:24 PM

Solution

Answers:

1. C. Poor and improper genealogical records.

(Genetic Characterization is defined as the study of molecular structure of a gene, including the sequence, location of regulatory sequences, and relationship to other similar genes).

2. E. (All options are the characteristic features of Autosomal Recessive Trait)

3. B. (Skipping of generations is not the charactersitic feature of Autosomal Dominant Trait)

4. D. (More Exclusive in males than in females and not inherited by father to son. Inherited from mother to son but not all sons are affected. so option C is eliminated.)