In which book, Bentham and Hooker proposed their classification?
Genera Plantarum
Species Plantarum
Historia Plantarum
Historia Naturae
A.
Genera Plantarum
Bentham and Hooker published natural system of classification in their Genera Plantarum. This system was based on arrangement of leaves and venation pattern, number of members in floral whorls, cohesion of various floral organs, number of cotyledons and presence or absence of cover around the seeds.
How many sub-phyla are available in Tracheata, according to Tippo's classification of kingdom Plantae ?
4
6
8
10
The virus, that infects bacteria, are made up of:
Protein only
RNA and protein
DNA and lipid
DNA and protein
Which of the following statement about viruses is correct ?
Viruses are obligate parasites
Viruses contain both RNA and DNA
Nucleic acid of viruses is known as capsid
Viruses possess their own metabolic system
The usage of binomial names, for plant species, was accepted by all after the publication of the works by :
Hooker
Linnaeus
Bentham
Darwin
Intracellular compartments are not found in the cells of
lower plants
prokaryotes
higher plants
eukaryotes
The cell organelles are found in
bacterial cells
cyanobacterial cells
prokaryotic cells
eukaryotic cells
Which one of the following is also called halophiles
Eubacteria
Actinomycetes
Archaebacteria
Cyanobacteria
Viroids have
single stranded RNA not enclosed by protein coat
single stranded DNA not enclosed by protein coat
double stranded DNA enclosed by protein coat
double stranded RNA enclosed by protein coat
