Chromosomes, Genes, DNA Flashcards
1
Q
What do chromosomes carry?
A
DNA
2
Q
DNA exists in a cell’s nucleus within structures called?
A
Chromosomes
3
Q
Each section of a chromosome is called a?
A
Gene
4
Q
Each chromosome is made from a single molecule of DNA, but when a cell is ready to divide the DNA..?
A
Copies itself, coils and condenses.
5
Q
Each human body cell has __ chromosomes. These can be arranged into __ pairs.
A
6
Q
In females, the two chromosomes are identical in shape and are called two __ chromosomes
A
XX
7
Q
Each chromosome in a pair carries th same type of genes. The 23rd pair is the?
A
Sex chromosomes
8
Q
In males, one of the chromosomes is different in shape. There is a _ and a _ chromosome. The are referred to as __.
A
XY
