Hardy-Weinburg principle

Question 1

What is the correct term for BB?

Answer 1

Homozygous dominant

Question 2

What is the correct term for bb?

Answer 2

Homozygous recessive

Question 3

What is the correct term for Bb?

Answer 3

Heterozygous

Question 4

What is a gene pool?

Answer 4

The total number of alleles of the breeding individuals in a population at one time

Question 5

What factors allow the Hardy-Weinburg principle to be applied?

Answer 5

• Population is large
• No immigration or emigration
• No variation/mutations
• Mating is random

Question 6

When can these factors be met?

Answer 6

In the real world it is extremely unlikely to find a population which fulfils all of these criteria. They can only be met when population is under control in a lab.

Question 7

What letter does the dominant allele (B) get?

Answer 7

p

Question 8

What letter does the recessive allele (b) get?

Answer 8

q

Question 9

What letter does the homozygous dominant allele (BB) get?

Answer 9

p²

Question 10

What letter does the homozygous recessive allele (bb) get?

Answer 10

q²

Question 11

What letter does the heterozygous allele (Bb) get?

Answer 11

2pq

Question 12

What is the first equation of the H-W principle?

Answer 12

p + q = 100% or 1.0

Question 13

What is the main equation of the H-W principle?

Answer 13

p² + 2pq + q² = 100% or 1.0

Question 14

What questions do you have to ask to answer H-W questions?

Answer 14

• Which allele are we concerned with?
• Which part of the HW equation do we already know?
• What part do we actually need to answer the question?