Lecture 1 Flashcards
1
Q
What is a chromosome
A
DNA and Protein
2
Q
Relaxed form takes place when
A
Whenever doing job / Replicating
3
Q
Condensed form takes place when
A
During cell division
4
Q
What happens to chromosome number while replicating
A
It doubles to maintain number
5
Q
Y chromosome
A
Male
6
Q
X Chromosome
A
Female
7
Q
How many chromosomes in humans
A
46
8
Q
What is contained in a nucleotide
A
Sugar , Phosphate , Nitrogenous base
9
Q
Name the four nitrogenous bases
A
Thymine
Adenine
Cytosine
Guanine
10
Q
What is purine
A
Double ring base
11
Q
What is Pyrimidine
A
Single ring base
12
Q
What nitrogenous bases are purine
A
Adenine Guanine
13
Q
What nitrogenous bases are pyrimidine
A
Thymine Cytosine
14
Q
Base Pairing
A
Adenine - Thymine
Guanine - Cytosine
15
Q
Why is DNA shape a double helix
A
Atoms are surrounded by electrons and trying to get away from each other
