Lec 10&11&12

Question 1

Types of RNA

Answer 1

mRNA
rRNA
tRNA

Question 2

• Several stretches of DNA don’t appear to function as codons
• are excised from RNA before translated by ribosomal protein
• is a long stretch of noncoding DNA found between exons

Answer 2

Introns

Question 3

Is cluster of functionally-related genes that are controlled by a single promoter,

Answer 3

Operon

Question 4

fertility factor, responsible for the conjugation
Which type of plasmid?

Answer 4

F plasmids or F factors

Question 5

contains genes for the synthesis of bacteriocins known as colicins.
Which type of plasmid?

Answer 5

Col plasmids

Question 6

known as resistance factors, carries genes for antibiotics resistance.
Which type of plasmid?

Answer 6

R plasmid or R factors

Question 7

Encode factors that make their hosts more pathogenic.
Which type of plasmid?

Answer 7

Virulence plasmids

Question 8

carries the genes which are mostly required for some strains of Rhizobium to induce legume nodulation to carry out nitrogen fixation.
Which type of plasmid?

Answer 8

Metabolic plasmids

Question 9

Naked DNA is taken up from the environment by bacteria cells

Answer 9

Transformation

Question 10

Use of bacteriophage to transfer DNA between cells

Answer 10

Transduction

Question 11

Direct transfer of DNA from one bacterial cell to onther

Answer 11

Conjugation

Question 12

Genetic material of bacteriophage called?

Answer 12

Prophage