During the G1- phase of cell division
RNA and proteins are synthesised
DNA and proteins are synthesised
cell prepares for M- phase
cell undergoes duplication
A.
RNA and proteins are synthesised
Cell division has two phases:
(a) Karyokinesis- Nucleus division.
It is further divided into-
(i) Interphase is a resting phase and consists of G1, S and G2 phase.
Phase | Activities |
G1 | RNA and protein synthsis takes place |
S | DNA replication takes place |
G2 | Damaged DNA is repaired and division of centrosomes takes place |
(ii) M- phase represnts the phase of actual division
(b) Cytokinesis- Cytoplasm division.
The process which cannot take place in the absence of viruses is
transformation
conjugation
translocation
transduction
From which of the following plant is a medicine for respiratory disorders obtained?
Ephedra
Eucalyptus
Cannabis
Saccharum
Decarboxylation is involved in
electron transport system
glycolysis
Kreb's cycle
lactic acid fermentation
Osmotic pressure of a solution is
greater than pure solvent
less than pure solvent
equal to pure solvent
less than or greater than pure solvent
In Whittaker's system of classification, prokaryotes belong to the kingdom
Monera
Protista
Animalia
Fungi