nuclic acids

Question 1

the major steps involved in handling genetic information are illustration by

Answer 1

the central dogma of molecular biology

Question 2

genetic information is stored in the

Answer 2

base sequence of DNA molecules

Question 3

A gene is

Answer 3

a unit of DNA that encodes a particular RNA molecule of a protein

Question 4

name the chemotherapeutic agent that target S-phase of cell cycle

Answer 4

methotrexate, 5-fluorouracil, hydroxyurea

Question 5

name the chemotherapeutic agent that target G2-phase of cell cycle

Answer 5

bleomycin

Question 6

name the chemotherapeutic agent that target M-phase of cell cycle

Answer 6

Paclitaxel, vincristine, vinblastine

Question 7

name the non cell-cycle specific chemotherapeutic agent

Answer 7

cyclophosphamide, cisplatin

Question 8

control of the cell cycle is accomplished at checkpoint between the various phases by the proteins such as

Answer 8

cyclins and cyclin-dependent kinases

Question 9

what is the function of check point

Answer 9

ensures that cell will not enter the next phase of the cycle until the molecular event in the previous cell cycle phase are true and completed

Question 10

what is reverse transcription

Answer 10

production of DNA copies of RNA

Question 11

reverse transcription is commonly associated with the life cycle of

Answer 11

retroviruses

Question 12

reverse transcription is catalysed by

Answer 12

reverse transcriptase

Question 13

what is the role in reverse transcription in human cells

Answer 13

role in amplifying certain highly repetitive sequences in the DNA

Question 14

phosphate grp and OH grp are found in which end of DNA

Answer 14

P - 5’
OH - 3’

Question 15

name the RNA that forms a cloverleaf structure that contains many unusual nucleotides and anticodon

Answer 15

tRNA

Question 16

in which organism we can see ssDNA genome and some dsRNA genomes

Answer 16

certain viruses