DNA and chromosomes revision Flashcards
1
Q
What are our characteristics determined by?
A
Proteins
2
Q
What makes proteins?
A
Genes
3
Q
Why are genes found?
A
Chromosomes
4
Q
Where do we inherit different chromosomes from?
A
Our parents
5
Q
When do we inherit these chromosomes?
A
During fertilisation
6
Q
What does this give us?
A
Our unique characteristics and ensures variety
7
Q
Where can chromosomes be extracted from?
A
Human cells
8
Q
What can these extracted chromosomes do?
A
Lined up in pairs to create a pattern
9
Q
What is this pattern called?
A
A karyotype
10
Q
How many different chromosomes are there in humans?
A
23
11
Q
How many chromosomes does a human have in total?
A
46
12
Q
Where did the chromosomes from each pair come from?
A
One from mum and one from dad
