B13.10 Embryo Screening Flashcards
How many pairs of chromosomes are there in a human body ?
23 pairs 46 chromosomes
Down syndrome has 47 chromosomes
Which pair of chromosomes determines what sex a person is?
Sex chromosomes
What pair of sex chromosomes does a woman have?
XX
How many chromosomes does a human egg or sperm cell contain ?
23 chromosomes
What pair of chromosome does a man have ?
XY
What are the pros and cons of embryo screening ?
Pros
- quality of life for potential children
- can screen for disordered
- eventually phasing out of disorders
Cons
- risky linked to miscarriages
- expensive procedure
- ethical argument- religious and moral
- lead to ‘designer babies’ with people choosing traits for their babies