Genetic Disorders 4.6.1.7

Question 1

What is the cause of inherited disorders?

Answer 1

by the inheritance of a certain alleles

Question 2

What is polydactyl and what is the cause?

Answer 2

• have extra fingers or toes

- caused by a dominant allele

Question 3

What is cystic fibrosis and what is the cause?

Answer 3

• a disorder of cell membranes

- caused by a recessive allele

Question 4

What is embryo screening?

Answer 4

Before being implanted, a cell is removed from each embryo and the DNA analysed to check for genetic disorders.

Question 5

What are the arguments for embryonic screening?

Answer 5

• can help stop the spread of diseases
• help stop people suffering
• treating disorder cost the government money
• laws prevent screening from going too far

Question 6

What are the arguments against embryonic screening?

Answer 6

• ethical and religious believes
• implies that people with genetic problems are undesirable and could increase prejudice
• may be a point where everyone want to screen embryos to select the best one.