Chapter 10 Flashcards
(9 cards)
1
Q
What type of virus
infects bacteria?
A
Bacteriophages
2
Q
The study of heredity at the molecular level is called
A
Molecular genetics
3
Q
What is the job of the enzyme helicase?
A
Separate double stranded nuclei acids into single strands
4
Q
What process links DNA to RNA?
A
DNA transcription ( unwinds dna and exposes bases of each DNA strand)
5
Q
how many steps are required for the
completion of transcription to occur?
A
- Initiation
- Elongation
- termination
6
Q
Initiation
A
RNA polymerase binds to the promoter region on the DNA
7
Q
Elongation
A
RNA polymerase reads the DNA template and adds nucleotides to the growing RNA strand
8
Q
Termination
A
RNA polymerase reaches a terminator sequence on the DNA, releasing the newly formed RNA molecule and detach from the DNA
9
Q
Flow of genetic info
A
DNA > RNA > protein
