Topic 9: Introduction to DNA Flashcards
1
Q
what does DNA stand for
A
deoxyribonucleic acid
2
Q
where is dna found
A
in nucleus
3
Q
what is dna
A
chromosomes or genes
4
Q
how many chromosomes do we have
A
23 pairs of chromosomes
46 chromosomes
5
Q
what is dna also known as
A
chromatin
hetero - darker
euchro - lighter
6
Q
how is dna structured
A
in a double helix
7
Q
where are genes
A
in nucleus
8
Q
which do genes code for
A
proteins
9
Q
where are proteins made
A
cytoplasm
10
Q
how are proteins made
A
dna -> rna -> proteins
11
Q
what is the human genome
A
320 million letters of code (base pairs)
the code that makes us who we are
used to understand diseases
12
Q
how long is dna
A
2 metres
13
Q
how big is a nucelus
A
6 micrometers
14
Q
what is the width of the double helix
A
2 nanometeres
15
Q
how big is a eukayrotic cell
A
15 micrometers
