Lecture 2- The Biology of Developmental Psychology Flashcards
According to Darwin’s theory of natural selection, which of the following is necessary for natural selection to occur?
a) Traits are heritable.
b) Some versions of a trait are fitter than others.
c) The environment is changing.
d) a and b
D
In biology, what does polygenic mean?
a) That there are different versions of a gene.
b) That a gene codes for several proteins.
c) That a trait is influenced by more than one gene.
d) That natural selection must operate on several genes at once
C
Which of the following statements about heritable is FALSE?
a) Heritability can be measured from zero to 100%.
b) For a trait, its heritability plus the effect of the environment adds to 100%.
c) Heritability of many psychological traits is high.
d) For a given population, the heritability of a trait is determined solely by variation in the genes of that population.
D
Which of the following statements about mutations are TRUE?
a) Mutations often reduce the fitness of the individual that carries them.
b) Mutations are changes in DNA.
c) Mutations can lead to a new protein being made.
d) All the above are true
D
What does Johnson’s (2001) maturational account propose?
a) That during development activity becomes focused in the part of the brain best able to facilitate a cognitive function.
b) That during development neural networks mature.
c) That during development frontal activity reduces as skills are perfected.
d) That during development synapse density increases.
A
How many strands of DNA are there in a chromosome?
a) 1.
b) 2.
c) 3.
d) 4.
B
