03-Heredity & Environment

Chromosomes are molecules of:

A. genotype

B. deoxyribonucleic acid (DNA).

C. gamete.

D. phenotype.

Chromosomes are molecules of:

A. genotype.

B. deoxyribonucleic acid (DNA).

C. gamete.

D. phenotype.

King Henry VIII of England had his wife beheaded because she failed to produce any male heirs to the throne.

Which of the following is true?

A. King Henry was too old to have male offspring.

B. King Henry just wanted a younger wife.

C. It was King Henry’s “fault” that he had no sons, because only a male can contribute the Y chromosome containing the male development genes.

D. Only females can contribute the Y chromosome containing the male development genes.

King Henry VIII of England had his wife beheaded because she failed to produce any male heirs to the throne.

Which of the following is true?

A. King Henry was too old to have male offspring.

B. King Henry just wanted a younger wife.

C. It was King Henry’s “fault” that he had no sons, because only a male can contribute the Y chromosome containing the male development genes.

D. Only females can contribute the Y chromosome containing the male development genes.

Which of the following is a good reason for a couple to receive genetic counseling before

they plan a pregnancy?

A. They have a history of high fertility.

B. They have diverse ethnic backgrounds.

C. The woman is under 30.

D. They have relatives with serious genetic disorders.

Which of the following is a good reason for a couple to receive genetic counseling before

they plan a pregnancy?

A. They have a history of high fertility.

B. They have diverse ethnic backgrounds.

C. The woman is under 30.

D. They have relatives with serious genetic disorders.

What would be a downside of genetic counseling?

John’s mother has blue eyes, and his father has brown eyes. John’s phenotype eye color is brown. Therefore the genotype of his eye-color

genes is:

A. blue and brown.

B. brown and brown.

C. blue and green.

D. It is not possible to tell.

John’s mother has blue eyes, and his father has brown eyes. John’s phenotype eye color is brown. Therefore the genotype of his eye-color

genes is:

A. blue and brown.

B. brown and brown.

C. blue and green.

D. It is not possible to tell.

Heredity & EnvironmentWhat do you need help with?

What topics do you need help with?

• A. DNA – chromosomes – genome• B. Monozygotic & Dizygotic twins• C. Genotype & phenotype• D. Chromosomes and age• E. I understand it

Based on this chapter, what can you tell about yourself?

• List everything you can think of.• Which is heredity or environment?

• Frequently Matt becomes quite upset and clings to you while sobbing. This usually occurs whenever he is in a new situation, or meeting new people. You typically:

• A. Are annoyed by this and scold him.

• B. Recognize his needs for contact with you and avoid taking him into new situations.

• C. Hold Matt and allow him to warm-up slowly to new situations and people, but don't force anything on him.

• D. Want Matt to become outgoing with people, so you concentrate on a few new situations or people, and repeatedly expose Matt to them as often as he will tolerate it.