The symbiotic relationship between fungi and algae is called
Lichen
Mycorrhiza
Helotism
Mutualism
Related Questions
Influenza virus has
DNA
RNA
Both DNA and RNA
Only proteins and no nucleic acids
The advantage of fungus in lichen is
Food
Shelter
Mineral absorption
Both (b) and ©
Identify the correct pair that shows the double stranded RNA among the following
(a) 5'-GAUCCG-3' and 3'-CUAGGC-5'
(b) 5'-GAUCCG-3' and 5'-CUAGGC-3'
(c) 5'-GAUCCG-3' and 3'-GAUCCG-5'
(d) 5'-GAUCCG-3' and 5'-GAUCCG-3'
Which of the following is correct about viroids ?
They have RNA with protein coat
They have free RNA without protein coat
They have DNA with protein coat
They have free DNA without protein coat
The genetic material of AIDS virus is
Double stranded DNA
Double stranded RNA
Single stranded RNA
Single stranded DNA
Mycobiont and phycobiont are found in
Mycorrhiza
root
lichens
Blue Green Algae
Which of the following statements is INCORRECT regarding prions?
They are resistant to proteases.
They cause neurodegenerative diseases.
They are easily destroyed by standard sterilization techniques.
They can exist in multiple conformational states.
Which one of the following is having ssRNA?
TMV
-bacteriophage
Reovirus
CMV
Size of TMV is
300 nm long and 18 nm diameter
100 nm long and 20 nm diameter
50 nm long and 10 nm diameter
500 nm long and 300 nm diameter
I. DJ Ivanowsky (1892) recognised certain microbes as causal organisms of the mosaic disease of tobacco
II. MW Beijerinck (1898) demonstrated that the extract of infected plants of tobacco could cause infection in healthy plants and called the fluid as contagium vivum fluidum
III. WM Stanley (1935) showed that these microbes could be crystallised and crystals consist largely of protein
The above statements are assigned to
Bacteria
Virus
Prions
Lichens
