Gene Control And Viruses

Question 0

Promotor

Answer 0

RNA polymerase attaches for transcription

Question 1

Operon

Answer 1

Functioning unit of DNA containing a cluster of genes under the control of a single promoter

Question 2

Operator

Answer 2

Switches on and off to determine attachment to promoter whether or not it’s repressed or induced in phenotypes

Question 3

Lac Operon of E. coli

Answer 3

Look up

Question 4

Virus

Answer 4

A small genetic entities DNA or RNA that are obligate pathogens they’re not cells and contain no ribosomes
Lyric or lysogenic pathways

Question 5

Obligate pathogens

Answer 5

Not cells no ribosomes must survive throughout other cells

Question 6

Lyric

Answer 6

Makes new viruses directly six steps
attachment
endocytosis of a virus by the cell unpacking the viral genes and entering the cytoplasm
Viral synthesis vRNA in a enters the nucleus replicates and transcribes virus genes & proteins take over the cell
assembly creates more viruses
released new viruses

Question 7

Lysogenic

Answer 7

Inserts genetic info into host and viral RNA reversed transcribed into DNA and inserted into the genes

Question 8

Lysogenic cycle

Answer 8

Virus attaches to the cell membrane
virus injects DNA into the cell
viral DNA forms a circle inside of the host cells DNA
the viral DNA attaches to the host cells DNA the host cell replicates by mitosis
viral DNA pinches off the host cells DNA and forms a circle
the lytic cycle is initiated therefore killing the cell

Question 9

Reverse transcription

Answer 9

Enzyme reverse transcriptase is used to generate complementary cDNA from an RNA template of process used by retroviruses