Psychology - Life Span - Chapter 3

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Psychology 237 Life Span

  
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1.  The human genome contains about ______ on _____.
A.
B.
C.
D.
2.  Monozygotic twins, Randy and Rowdy, originated from the same zygote and therefore have identical genes.  They have many similarities, but what explains the differences in their height, weight, and behavior?
A.
B.
C.
D.
3.  Which statement is true?
A.
B.
C.
D.
4.  An embryo cannot develop without
A.
B.
C.
D.
E.
5.  Mrs. Lara wants to prevent her 5-year old daughter from developing the genetic family trait of type 2 diabetes.  What should she do?
A.
B.
C.
D.
E.
6.  Multiple births from the implantation of more than one zygote may cause:
A.
B.
C.
D.
7.  Because of cultural preferences, women have sometimes looked for ways to alter the sex of their embryo. Which of the following is true?
A.
B.
C.
D.
8.  The variable that most often correlates with chromosomal abnormalities is:
A.
B.
C.
D.
9.  Who is more likely to be a carrier of an X-linked trait?
A.
B.
C.
D.
10.  _____ refers to traits that are affected by many genes, and _____refers to traits that are influenced by many factors
A.
B.
C.
D.
11.  When a pair of alleles interacts, the resulting phenotype reveals the influence of one allele more than that of the other allele. This pattern is called:
A.
B.
C.
D.
12.  If a zygote has the genes for "musical genius," which is true?
A.
B.
C.
D.
13.  Approximately _____ percent of twins are dizygotic
A.
B.
C.
D.
14.  Which statement is true?
A.
B.
C.
D.
15.  The process by which ova are surgically removed from a woman, and then mixed with sperm to produce a zygote, which then is inserted into the uterus, is called:
A.
B.
C.
D.
16.  Based on recent research on twins and siblings, scientists now conclude that:
A.
B.
C.
D.
17.  The full set of genes that is the instructions to make a living organism is called:
A.
B.
C.
D.
18.  Down syndrome is a condition in which an individual has 3 copies of:
A.
B.
C.
D.
19.  Schizophrenia is a result of:
A.
B.
C.
D.
E.
20.  Most recessive genes on a male's X chromosome are expressed because:
A.
B.
C.
D.
21.  If one monozygotic twin is nearsighted, the other twin
A.
B.
C.
D.
22.  What is formed when a sperm cell and an ovum fuse?
A.
B.
C.
D.
23.  A genetic disorder that causes the inability to metabolize phenylalinine that may lead to brain damage and mental retardation is called
A.
B.
C.
D.
24.  The chemicals that produce instructions on each gene are:
A.
B.
C.
D.
25.  In general, genetic counseling is recommended for:
A.
B.
C.
D.
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