Genes Chromosomes And DNA Flashcards
1
Q
What is a nucleus?
A
Found in most cells of the body and contains genetic material in the form of chromosomes
2
Q
How many pairs of chromosomes does the human cell nucleus contain?
A
23 pairs
3
Q
What do chromosomes carry?
A
Genes
Different genes control the development of different factors
4
Q
What is a gene?
A
A short length of the chromosome
5
Q
What is a DNA molecule?
A
A quite long length of DNA
The DNA is coiled up to form the arms of the chromosome
6
Q
What are different versions of the same gene called?
A
Alleles
They give different version of a characteristic e.g. Brown or blue eyes
