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(i)
Give two reasons why genetic variation is important in living organisms.
(ii)
Give three examples of genetic variations in humans.
(i)
What are chromosomes?
(ii)
State three uses of DNA testing in humans.
State three causes of genetic variation in human population.
(ii)
Give two ways in which genetic variation affects organisms.
(i)
What is rhesus factor?
(ii)
Explain briefly how the rhesus factor in humans could result in miscarriage.
A man with normal red blood cells is married to a woman who is a sickle cell carrier. With the aid of a genetic diagram, explain the genetic constitution of their children.
With the aid of a genetic diagram, explain briefly how a couple of normal skin colors produces an albino.