Genetics and Inheritance

Question 1

Which method of measuring brain activity can cause a small area of the brain to be ‘switched on and off’ at will?

Answer 1

Transcranial Magnetic Stimulation

Question 2

What is the correct order of the neural impulse?

Answer 2

Dendrites; Cell Body; Axon; Axon Terminals

Question 3

How many chromosomes are there in the nucleus of a normal human cell (ie, NOT a sex cell)?

Answer 3

46 (23 from the mother and 23 from the father)

Question 4

What is meant by a ‘recessive’ allele in genetics?

Answer 4

A gene variant that requires both versions to be present in order to be displayed

Question 5

when is the heritability estimate for intelligence the highest?

Answer 5

in adulthood than in

Question 6

If a trait has a heritability estimate of 0.2, this means

Answer 6

20% of variation in the expression of that trait is due to genetics

Question 7

Which is the correct pairing of nucleotides?

Answer 7

G-C, A-T

Question 8

Adenine, guanine, thymine, and cytosine are:

Answer 8

Nucleotides

Question 9

What is the correct definition of a heritability estimate?

Answer 9

Statistical indicator of genetic influence on a trait