What happens if you have an extra chromosome?

If a person has extra chromosome you or they might have down syndrome

Explanation:

Normally a baby inherits 23 chromosome from each parent which is equal to 46 total and basically those who survive develop down syndrome

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !