Chromosomes Flashcards
1
Q
Threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell.
A
Chromosomes
2
Q
In plants and animals (including humans), chromosomes reside in the ——— of cells.
A
Nucleus
3
Q
Consist of two identical halves.
A
Chromosomes
4
Q
Each half is called a
A
Chromatid
5
Q
Form when DNA makes a copy of itself before cell division.
A
Chromatids
6
Q
When the cell divides each new cell receives ——— chromatin
A
One
7
Q
Chromatids are held together by a
A
Centromere
8
Q
Before a cell starts dividing, the chromosomes are duplicated
This process produces
A
Sister chromatids
9
Q
Humans have ——— of numbered chromosomes (autonomes) and ——— of sex chromosomes (XX or XY), for a total of 46.
A
22 pairs
One pair
