Unit 14 Flashcards
0
Q
Double helix
A
The shape of DNA
1
Q
DNA stands for…
A
DeoxyriboNucleic Acid
2
Q
Adenine always joins to…
A
Thymine
3
Q
Cytosine always joins to…
A
Guanine
4
Q
Chromosome
A
DNA tangled together
5
Q
DNA replication process
A
- Double helix of DNA splits apart
- Each single strand creates another strand
- A’s pair with T’s and c’s pair with G’s
- Takes about 8 hours
6
Q
Mitosis
A
Cell division
7
Q
How many chromosomes does a human have?
A
46 (23 pairs) in each cell.
8
Q
Genes
A
The DNA sequence coding for specific proteins.
9
Q
Nucleic acids
A
Slightly acidic; long molecules of nucleotides
10
Q
Nucleotides
A
Subunits that make up Nucleic acid molecules
11
Q
What are nucleotides made of?
A
5 carbon sugar (deoxyribose)
Phosphate group
Nitrogenous base
12
Q
Chargaff’s Rule
A
C’s and G’s; A’s and T’s
13
Q
Rosalind Franklin
A
Used an X-ray to discover helix shape of DNA
14
Q
James Watson & Francis Crick
A
Discovered the shape of DNA
