Genetics

Question 1 of 10

Down syndrome is caused by

Question 2 of 10

PCR (polymerase chain reaction) is used to

Question 3 of 10

The sex chromosomes of a human male are

Question 4 of 10

Genetic counselling helps couples to

Question 5 of 10

A normal human body cell contains

Question 6 of 10

A person with sickle cell disease usually has the genotype

Question 7 of 10

Gel electrophoresis separates DNA fragments by

Question 8 of 10

A test that looks for a carrier of the sickle cell gene before marriage is

Question 9 of 10

A mutation is

Question 10 of 10

Haemophilia, in which blood does not clot properly, is