Chapter 4 Flashcards
1
Q
DNA
A
Deoxyribonucleic acid
2
Q
Shape of DNA
A
Double helix, backbone composed of phosphate groups, alternating sugars- deoxyribose
3
Q
Nitrogenous base
A
Purines: A, G
Pyrimidines: C, T
A-T, G-C
4
Q
Genes
A
Instructions for protein synthesis
5
Q
Gene
A
Segment of DNA that codes for specific protein
6
Q
Genome
A
All genes a person has (30,000)
7
Q
Gene expression
A
Gene makes its protein product
8
Q
RNA functions
A
Interpret DNA code, use instructions for protein synthesis, control gene expression
9
Q
Transcription
A
DNA to mRNA (nucleus)
10
Q
Translation
A
mRNA to protein (cytoplasm)
11
Q
Gene regulation
A
Genes are turned on and off day to day
12
Q
Mitosis
A
Cell division in body cells, diploid daughter cells
13
Q
Meiosis
A
Creates sex cells, haploid
