Viroids differ from viruses in that they lack:
A protein coat
Genetic material
Infectivity
The ability to replicate
Related Questions
A teacher was explaining about a constant physical contact involving almost equal physiological interdependence in two different thalloid forms. He was trying to explain
Mycorrhizal association
Establishment of heterothallism
Operation of heterothallism
Advent of lichen formation
Incorrect about the pathogen that causes potato sindle tuber disease is
It is a DNA molecule
It lacks a protein coat
It is transmitted through mechanical means
It is a subviral agent
Analyse the following statements and identify the correct option given below.
I. Viruses that infects plants have single-stranded RNA and viruses that infects animals have either single or double-stranded RNA or double stranded DNA
II. Bacterial viruses or bacteriophase are usually single-stranded RNA viruses
Codes
I is true, but II is false
I is false, but II is true
I and II are true
I and II are false
Lichens are composite organisms consisting of a fungus and a photosynthetic partner (algae), growing together in a symbiotic relationship Consider the following statements about lichensI. Lichen are very good air pollution indicatorsII. Algal partner and fungal partner live mutuallyIII. Algae prepares food for fungiIV. Fungi provides shelter and absorbs water and minerals for algal partnerWhich of the statements given above are correct?
I, II and III
II, III and IV
I, II and IV
I, II, III and IV
Which of the following can not be grown on artificial culture medium?
Eschaerichia Coli
TMV
Aspergillus
Yeast
T.O. Diener discovered a new infections agent that was smaller than viruses and having following characteristics.
I) It causes potato spindle tuber disease
II) It has free RNA
III) Molecular weight of RNA is low
Which is the correct option far all the given characteristics?
Viruses
Viroids
Virion
Mycoplasma
The advantage of fungus in lichen is
Food
Shelter
Mineral absorption
Both (b) and ©
Which statement is wrong for viruses?
They reproduce only inside the host cell.
They have no cellular structure.
They have no metabolism.
They grow.
A teacher was explaining about a constant physical contact involving almost equal physiological interdependence in two different thalloid forms. He was trying to explain
Mycorrhizal association
Establishment of heterothallism
Operation of heterothallism
Advent of lichen formation
Analyse the following statements and identify the correct option given below.
I. Viruses that infects plants have single-stranded RNA and viruses that infects animals have either single or double-stranded RNA or double stranded DNA
II. Bacterial viruses or bacteriophase are usually single-stranded RNA viruses
Codes
Both I and II are correct
Only I is partially correct
Only II is correct
Neither I nor II are correct
