In Griffith’s experiment which of the following strains of pneumococci was isolated from dead mice?
Important Questions on Molecular Basis of Inheritance
Find out the correct combination based on the methods of genetic material exchange which occur in bacteria.
| A) | F-plasmid passes from donor cell to recipient cell | Retaining of the copy of genetic material by the donor |
| B) | Uptake of DNA fragments from the surrounding environment | Acquiring new characters by the recipient cell |
| C) | Production of genetically identical cells | Transformation |
| D) | Transfer of genetic material through bacteriophages | Transduction |
Statement In ciliates, conjugation restores the vigour and vitality which are lost due to chromosomal imbalance in the macronuclei due to repeated amitotic divisions.
Reason Conjugation is temporary union of senile ciliates belonging to same mating types. It often prevents exchange of nuclear material.
(a) Bacillus anthracis-Endospore
(b) Diatoms-Auxospore
(c) Lichens-Soredia
(d) Agaricus-Gills
(e) Salvinia-Sporocarps
Analyse the given diagram which shows steps involved in the procedure of selecting transformed bacteria.
Identify the bacterial colony which has undergone transformation?
Transfer of genetic information from one bacterium to another in the transduction process is through which of the following?
Sex factor in bacteria is –
