Genes And DNA Flashcards
1
Q
How many chromosomes are in normal body cells?
A
46
2
Q
How many cells are in sperm and ova cells?
A
23
3
Q
What is a gene?
A
The basic physical and functional unit of hereditary
Part of the chromosomes
4
Q
How are strands of DNA held together?
A
Weak hydrogen bonding
5
Q
What forms a triplet code/ codon?
A
3 Bases (A,T,C,G)
6
Q
Which bases go with which?
A
A-T
C-G
7
Q
How can mutations occur?
A
When then DNA is replicated incorrectly
8
Q
Where are chromosomes found?
A
In the nucleus of the cell
