Genetic inheritance - AQA

1

Why does a dominant allele create a higher probability of an offspring affected by a disease, such as cystic fibrosis?

2

Why is fertilisation a random process?

3

Why is probability used to predict the outcome of fertilisation?

4

What phenotype is produced from an XY genotype?

5

Why does cystic fibrosis need two alleles to cause the disease?

6

What is an example of a dominant genetic disorder?

7

Why are genetic tests never 100% reliable?

8

What type of trees can be used to examine close genetic relationships?

9

Which of these are the correct human gametes?

10

What is a gene?