Exam 48: Genetics and Heredity

In a pedigree, a half-shaded circle indicates a:

A karyotype is a grid used to determine the mathematical probability of inheriting genetic traits.

Many of the polypeptides formed by encoded genes are enzymes that control and regulate chemical reactions in the cell.

Each DNA molecule may be called a:

Which of the following processes does not aid in increasing the genetic variability of offspring?

Match each of the terms with its corresponding definition. -One of 44 chromosomes in the human genome besides the two sex chromosomes

Which of the following diseases is not a single-gene dominant trait?

In human blood type, A and B are codominant, producing type AB. They are both dominant to the recessive O type. If parents had genotypes AO and BO, a child with which blood type could be theirs?

The parents with which of the following genotypes could not have a child with albinism?

Why must DNA transcription stop during mitosis?

The condition called trisomy results from a(n):

In a dominant/recessive trait, the heterozygous person would look like the homozygous person.

All congenital disorders are inherited disorders.

The term mutation simply means "change."

Assume that "A1" is the gene for light hair and that "A2" is the gene for dark hair. Also assume that these genes demonstrate codominance. Then, the heterozygous genotype "A1A2" will exhibit the phenotype of:

A person who is heterozygous for albinism will have the abnormal phenotype for the condition.

Which of the following is (are) not (a) mutagen(s)?

Crossing over increases genetic variation by forming new linkage patterns.

Each offspring from a single set of parents is likely to be genetically unique.

Nondisjunction results in gametes that produce either trisomy or monosomy in the cells of offspring.