Psychology - Life Span - Chapter 3 - Book Work (Pt 1)
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Psychology 237 Life Span
- 1.When a sperm and an ovum merge, a one-celled _________ is formed.
- A.
Zygote
- B.
Reproductive cell
- C.
Gamete
- D.
Monozygote
- 2.Genes are separate units that provide the chemical instrctions that each cell needs to become:
- A.
A zygote
- B.
A chromosome
- C.
A specific part of a functioning human body
- D.
Deoxyribonucleic acid
- 3.Because the 23rd pair of chromosomes in females is XX, each ovum carries an:
- A.
XX zygote
- B.
XY zygote
- C.
X zygote
- D.
X chromosome
- 4.When a zygote splits, the two identical, independent clusters that develop become:
- A.
Dizygotic twins
- B.
Monozygotic twins
- C.
Fraternal twins
- D.
Trizygotic twins
- 5.During adulthood, genetic influences on development
- A.
Generally increase
- B.
Generally decrease
- C.
Remain steady
- D.
Vary from individual to individual
- 6.Most of the known genetic disorders are:
- A.
Dominant
- B.
Recessive
- C.
Seriously disabling
- D.
Sex-linked
- 7.When we say that a characteristic is multifactorial, we mean that:
- A.
Many genes are involved
- B.
Many environmental factors are involved
- C.
Many genetic and environmental factors are involved
- D.
The characteristic is polygenic
- 8.Genes are segments of molecules of:
- A.
Genotype
- B.
Deoxyribonucleic acid (DNA)
- C.
Karyotype
- D.
Phenotype
- 9.In the US, newborns are tested for the recessive genetic disorder:
- A.
Down syndrome
- B.
Fragile X syndrome
- C.
Alzheimer's disease
- D.
Phenylketonuria
- 10.A chromosomal abnormality that affects males only involves a:
- A.
XO chromosomal pattern
- B.
XXX chromosomal pattern
- C.
YY chromosomal pattern
- D.
XXY chromosomal pattern
- 11.Some developmentalists believe that the epidemic increase in myopia among children in Hong Kong, Singapore, and Japan is partly the result of"
- A.
The recent epidemic of rubella
- B.
Vitamin A deficiency
- C.
The increasing amount of time spent by children in close study of books and papers
- D.
Mutations in the Pax6 gene
- 12.Babies born with trisomy-21 (Down syndrome) are often:
- A.
Born to older parents
- B.
Unusually aggressive
- C.
Abnormally tall by adolescence
- D.
Blind
- 13.To say that a trait is polygenic means that:
- A.
Many genes make it more likely that the individual will inherit the trait
- B.
Several genes must be present in order for the individual to inherit the trait
- C.
The trait is multifactorial
- D.
Most people carry genes for the trait
- 14.Some genetic diseases are recessive, so the child cannot inherit the condition unless both parents:
- A.
Have Klinefelter syndrome
- B.
Carry the same recessive gene
- C.
Have XO chromosomes
- D.
Have the disease
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