Factors affecting development - Genetic Factors

Question 1

What is genetic factors?

Answer 1

Factors that affect physical growth, development, health and appereance

Question 2

What is genetic predisposition ?

Answer 2

Health conditions can arise from defective inherited genes.

Question 3

What happens if a defective gene is passed on?

Answer 3

Increases the likelihood of developing a condition, which depends upon whether the defective gene is recessive or dominant.

Question 4

What mean if the defective gene is dominant?

Answer 4

It only needs to be passed on by one parent and means that they are most definitely going to get the condition

Question 5

Examples of conditions that are caused by dominat genes

Answer 5

Brittle bone disease and Huntington’s disease

Question 6

What mean if the defective gene is Recessive?

Answer 6

Must be passed on by two parents for the child to develop the condition.

Question 7

Examples of conditions that are caused by recessive genes

Answer 7

Cystic fibrosis, phenyiketonuria(PKU), Duchenne muscular dystrophy

Question 8

Whats a carrier?

Answer 8

If the defective gene is passed from one parent only

Question 9

Down syndrome

Answer 9

Individuals have an extra copy of chromosome 21, which causes characteristic facial features, growth delay and intellectual disability

Question 10

Colour blindness

Answer 10

Caused by mutations in the x chromosome, so is more common in males. it makes it difficult to distinguish colours.

Question 11

Klinefelter Syndrome

Answer 11

Boys have an extra x chromosome, causing problems during, or a delay in puberty.