Exam 2: Genetics and Prenatal Development

Your friend's mother is extremely intelligent.As a result,even though he usually does OK in school (2.8 GPA),he is convinced that he is a genius.What do you think?

Jill's mother was an All-American in the 1500 m and qualified for the Olympic team in the marathon.Jill is a freshman in high school and does not think that she will need to train to become a member of the school's cross country team.Jill keeps telling you that her mother was a great runner,so she will also be a great runner.What do you think?

What is the process of regular cell division called?

In most cultures and throughout history,infertility has been regarded mostly as a problem that originates from ____.

What do fetuses do when their mothers are highly stressed?

Human sex cells,sperm and ova,each contain how many chromosomes?

Fernando and Rebecca are anxious to know the sex of their baby.It would not be until the end of the ____ month of pregnancy that they can find out,because the genitalia will not have fully formed before then.

The totality of an individual's genes is referred to as his or her ____.

During the embryonic period,the ectoderm is formed,which will become the ____.

Which of the following is an example of an incomplete dominant inheritance?

What is the leading cause of low birth weight in developed countries?

Monozygotic (MZ)twins are also known as _____.

Which question best captures the spirit of most individuals who study human development with regard to the nurture/nature question?

Lamar and Chandra recently got married and have been discussing how long they could wait to have children.Based upon the text,at what age,statistically speaking,will Chandra run out of fertile ova?

What is another name for the German measles?

HIV/AIDS can be transmitted from the mother to the child ____.

During the embryonic period,the endoderm is formed,which will become the ____.

During meiosis,at times chromosomes sometimes fail to divide properly,and as a result,the person may have 45 or 47 chromosomes.Which of the following best describes this phenomenon?

Sandra Scarr and Kathleen McCartney proposed the theory of genotype $\to$ environment effects.Which subtype occurs in biological families because parents provide both genes and environment for their children?

Alejandro was born into a family with high musical talent.Both of his parents were professional musicians who encouraged and fostered his musical development.Throughout childhood,he practiced the guitar whenever he could and eventually became a professional musician himself.Which of the following best describes Alejandro's phenotype?