What is a karyotype?

A karyotype is a picture of all the chromosomes in pairs in line from biggest to smallest.


What do scientists use karyotypes for?

So they can make sure they are all there, and there are no extras.

How many pairs of chromosomes do humans have?

Humans have 23 pairs of chromosomes, also including one pair of sex chromosomes.

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

Males: XY

Female: XX

What do you think would happen if a person was born missing a chromosome or with too many chromosomes?

If people where borne with missing chromosomes then they would be less intelligent.

If people where born with to many chromosomes then they would probably be really short