IVE - Inherited Disorders/ Polydactyl/ CF

Question 1

Inherited disorders are…

Answer 1

conditions passed on by alleles.

Question 2

What actually is polydactyly?

Answer 2

It’s where a baby is born with extra fingers or toes.

Doesn’t cause any other problems.

Question 3

Is polydactyly a dominant or recessive disorder?

Answer 3

dominant (has d in its name)

Even if 1 of the 2 polydactyly alleles is dominant, you’d still inherit it.

Question 4

Is cystic fibrosis a recessive or dominant disorder?

Answer 4

recessive

Question 5

How does cystic fibrosis work?

Answer 5

• disorder of cell membranes
• causes lots of thick sticky mucus to be released in the lungs and airways, and the pancreas.

Question 6

If a woman has IVF, the embryo can be

Answer 6

screened, to see if its genes contain alleles that cause an inherited disorder.

Question 7

PROS of embryonic screening

Answer 7

• reduce overall amount of people suffering from a disease
• save money since treating ppl with certain disorders is very expensive

Question 8

CONS of embryonic screening

Answer 8

• implies that people who have conditions are less desirable - could increase prejudice
• in the future, people could start screening for other traits, like physique and gender, and can become weird