4.6.1.4 DNA and the Genome Flashcards
(7 cards)
1
Q
What is DNA?
A
- a chemical that makes up the genetic material in a nucleus
2
Q
What is the structure of DNA?
A
- polymer
- double helix
3
Q
How is DNA contained?
A
- in chromosomes
4
Q
What are between the two strands of DNA?
A
- four nitrogenous bases lined up single rows
- come together to form complementary pairs
5
Q
What is a gene?
A
- small section of DNA on a chromosome
- triplet of bases that codes for a specific protein
- each gene codes for a particular sequence of amino acids, form a chain to make protein
6
Q
What is a genome?
A
- all the genes coding for all of the proteins within an organism
7
Q
What has the study of the human genome improved?
A
- understanding of genes linked to different types of disease
- treatment of inherited disorders
- tracing human migration patterns
