Genes, Chromosomes and DNA Flashcards
1
Q
The human cell contains how many pairs of chromosomes?
A
23 PAIRS
2
Q
Why are chromosomes always in pairs?
A
ONE FROM EACH PARENT
3
Q
What do chromosomes carry?
A
GENES
4
Q
What is a gene?
A
A SHORT LENGTH OF THE CHROMOSOME WHICH IS QUITE A LONG LENGTH OF DNA
5
Q
Different versions of the same gene are called what?
A
ALLELES
6
Q
Why is the DNA coiled up?
A
TO FORM THE ARMS OF THE CHROMOSOMES
7
Q
Most cells in your body have a nucleus. What does the nucleus contain?
A
YOUR GENETIC MATERIAL IN THE FORM OF CHROMOSOMES
