Inherited Dsiorders And Sex Determinatiom

Question 1

How does inherited disorders come

Answer 1

Caused by inheritance of certain alleles

Question 2

What is polydactyl

Answer 2

Having extra fingers or toes and is caused by a dominant allele

Question 3

What is cystic fibrosis

Answer 3

A disorder of cell membrane is caused by a recessive allele a result in the body producing larger amounts of thick and sticky mucus in their air passages, damaging the lungs and stopping them from working properly overtime

Question 4

Concerns of embryo screenings

Answer 4

• IVF embryo may be destroyed if alleles causing genetic disorder found
• pregnancy may be prematurely terminated if embryo in womb is found to have alleles

Question 5

How many pairs of chromosomes control characteristics

Answer 5

22 pairs control characteristics only but one of the pairs carries the genes that determines the sex

Question 7

How are some character characteristics controlled by a single gene?

Answer 7

The inheritance of these single genes is called mono, hybrid inheritance. The olly’s present operates at a molecular level to develop characteristics that can be expressed as a phenotype.

Question 8

For embryo screening

Answer 8

• can avoid suffering by stopping children from being born with disorders
• treatment for disorders, cause governments and taxpayers a lot of money
• Laws in place to stop embryo screening being abused

Question 9

Against embryo screening

Answer 9

• process could imply people with genetic disorders are undesirable
• And we are screening is a very expensive process and not available to all potential parents
• slippery slope if process becomes more affordable, and therefore more people would want to get it, and it would be abused

Question 10

Two disadvantages of embryo screening

Answer 10

Can find out if the embryo has a disorder

Can prepare for the babies needs