Questions and Answers

What is a karyotype? An image of all the chromosomes, matched into pairs and lined up from biggest to smallest, so you can make sure they are all there, and there are no extras.

What do scientists use karyotypes for? To see if a person has all the right chromosomes

How many pairs of chromosomes do humans have? 23

Both males and females have two sex chromosomes. Using the letters X and Y, describe the sex chromosomes of

Males: XY

Females: XX

What do you think would happen if a person was born missing a chromosome or with too many chromosomes? That person would have some sort of disability.