Question

Q1)What factors are NOT involved in the conjugation process? *
a-Donor cell with pilus.
b-Both donor and recipient alive.
c-Fertility plasmid in donor.
d-Free donor DNA (fragment)

Q2)Bacteriophage is a virus that replicates inside a bacteria cell and it is not observable under normal light microscope.?
a-Bradford assay.
b-Enzymatic activity assay.
c-PCR assay.
d-Plaque assay.

Q3)Transmission electron microscopy (TEM) is suitable to be used to study the virus component such as?

a-size

b-types of capsid

c-structured

d-nucleic acid strand

Q4)A component of the cell wall of most fungi is ?
a-Peptidoglycan.
b-Ergosterol.
c-Glucan.
d-Phospholipid

Q5)Which of the following is TRUE for endocytosis? *
a-Only enveloped-virus use this method.
b-pH dependent process.
c-pH independent process.
d-An energy independent process.

Q6)Which of the following is NOT the location where virus uncoating mechanism take place? *

a-On the spike.
b-At nuclear membrane.
c-In cytosol.
d-In nucleus.

Answer 1

? D atio -n not @ What Factors are not involved in the Conjugation process Insinser : @ Free donor DNA CI (Fragment) Explaination : Above factor re regarding Conjugati is true, because bacterical DNA or Chromosome of Donor is not bree, it remain in the bacterial cell, it cannot Donor transfered from out to recepient, Only F- plasmid present in Danar transfered recipient bacteria. Sex pili Forecipient F + Donor Integrated in be can be N Bacterial chromosome Bacterial chromosome F- plasmid Conjugation bridge 0 0 0 0 Fig. F + cell + cell F+-F Conjugation

larue Conjugation is OCCUS in cund hinereal Option A, B anc & All these factors regarding because bacterial c onjugation two type of of cells male (Ft) or donor Female (F-) or recipient. The male or donor Cells Have 1-4 sex pili on the surface and Festing Factor in its plasmid Fertility Factor contain genes For produc ducing sex pili ene transfer. Sex pili are narrow proto -plasmic Outgrowth that can Both sex pili and Fertili tility Factor Female or recipient cell. happen to come These two types of cell pilus of male Cell Forming a Conjugation bridge with the Female. And Gene exchange occur For gene Occu all around the Cell. absent in core nearer between them. Finally