Ch. 10 Psychology Test

Genes seem to play a role in

• intelligence.

• a child's activity level.

• how a child responds to new stimuli in the environment.

• all of the above.

• a & b only.

Chromosomes contain

• zygotes.

• genes.

• reproductive hormones.

• all of the above.

Nature refers to , and nurture refers to

• environment. . . heredity.

• heredity . . . environment.

• traits learned early in life . . . traits learned later in life.

• just before b i r t h . . . just after birth.

The fact that two-day-old infants can vary their sucking patterns in

response to sounds suggests

• that infants have a memory system.

•  that sounds can be reinforcing for infants

•  infants can learn from the environment

•  all of the above.

• b & c only

A zygote is another name for

•  an egg with no genetic defects.

• an egg with 23 chromosomes.

• a fertilized egg.

• an unfertilized egg.

Each sperm and egg contains chromosomes, and a zygote

contains chromosomes.

• 2 3 . . . 46

• 4 6 . . . 23

• 23...23

• 46….46

If Natalie and Kristin are dizygotic twins, which of the following is

true?

• Natalie's and Kristin's genes are no more alike than any two other

  siblings' genes.

• Natalie's and Kristin's genes, though not identical, are much more

  alike than other siblings' genes.

• Natalie's and Kristin's genes are identical.

• Natalie's and Kristin's genes have very little in common.

Dizygotic twins come from

• two different sperm that fertilize one egg.

• one sperm that fertilizes one egg that then splits.

• one sperm that fertilizes two different eggs.

• two different sperm that fertilize two different eggs.

Monozygotic twins come from

•  two different sperm that fertilize one egg.

• one sperm that fertilizes one egg that then splits.

•  one sperm that fertilizes two different eggs.

• two different sperm that fertilize two different eggs.

The fact that some children talk at 12 months and some at 18 months

demonstrates

• that each child follows his own pattern or sequence of maturation.

• that the timing of development is different for each child.

• that some parents spend more time on language skills than other

  parents.

• all of the above.