DNA and Genes Flashcards
1
Q
What is DNA
A
- DNA is a polymer
- Made of 2 strands that form a double helix
2
Q
How many chromosomes are in each cell ?
A
46
3
Q
What is the 23rd pair of chromosomes?
A
They are the sex chromosomes
1X and 1Y
4
Q
What chromosomes do women have ?
A
Women have 2X chromosomes
5
Q
What chromosomes do men have ?
A
Men have 1X and 1Y chromosome
6
Q
What is a gene ?
A
- A small section of DNA that codes for a specific protein
(Small segment of a chromosome) - Code for a sequence of amino acids
7
Q
What happens when amino acids are combined in the specific sequence ?
A
They form proteins
8
Q
What is a genome ?
A
It is an entire set of genetic material in an organism
9
Q
What are genes called cause a disease
A
It is called an inherited disease
