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Exam 2: Biological Beginnings

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Question 71

Multiple Choice

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Carrie's parents have brown hair.However,Carrie gets genes for blond hair from both of her parents,and as a result she has blonde hair.This indicates that the gene for blonde hair is a:

A) recessive gene.
B) dominant gene.
C) susceptibility gene.
D) longevity gene.

E) B) and D)
F) All of the above

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Question 72

Multiple Choice

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Behavior geneticist Robert Plomin has found that shared environment:

A) is independent of heredity influences.
B) accounts for most of the variation in children's personality or interests.
C) is responsible for higher incidence of rivalry and aggression between siblings.
D) accounts for little of the variation in children's personality or interests.

E) B) and C)
F) All of the above

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Question 73

Multiple Choice

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Ethel is 50 years old but appears much more aged.Most of Ethel's relatives have not lived past the age of 60.Which of the following genes are responsible for the accelerated aging that is observed in Ethel and her family members?

During the process of _____,the cell's nucleus-including the chromosomes-duplicates itself and the cell divides resulting in the formation of two cells.

Erin is 90 years old.She has relatively good health,and is fully mobile.Most of Erin's blood relatives live to a ripe,old age.Which of the following genes might be responsible for this?

List four sex-linked chromosomal abnormalities.

According to evolutionary developmental psychologists,many evolved psychological mechanisms are _____.That is,the mechanisms apply only to a specific aspect of a person's makeup.

Females who have one abnormal copy of a mutated gene on the X chromosome are known as _____.

List three possible causes of infertility in women and in men.What are the two strategies that can be used to overcome infertility?

Which of the following statements regarding chorionic villus sampling (CVS) and amniocentesis is true?

What is the behavior that promotes an organism's survival in the natural habitat?

Combining the genes of two parents in offspring increases _____ in the population,which is valuable for a species because it provides more characteristics for natural selection to operate on.

_____ develop from a single zygote that splits into two genetically matching replicas,each of which becomes a person.

Mary's mother has blonde hair and her father has brown hair.Mary has a gene for brown hair and a gene for blonde hair.She has brown hair.This indicates that the gene for brown hair is a(n) _____.

Cell division in the eggs and sperms.A cell duplicates its chromosomes and divides twice.This leads to the formation of four cells that contain only half of the genetic material of the parent cell.What is this process called?

Clark's genotype contains a dominant gene for brown eye color and recessive gene for blue eye color.According to the dominant-recessive gene principle,which of the following phenotypes is most likely to be observed in Clark?

Parents' personalities or intellectual orientation,the family's socioeconomic status,and the neighborhood in which they live are all instances of the _____ of siblings.

_____ is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

Which of the following statements is true about evolutionary developmental psychology?

Evolution takes place: