Virus envelope is known is
capsid
virion
nucleoprotein
nucleoprotein
A.
capsid
Structurally viruses are very diverse varying composition. The nucleic acid of the virus is always located within the virion particle nd surrounded by protein molecules called structural subunits. The complete complex of nucleic acid and proteins, packaged in the virion is called the virus nucleocapsid.
Peripatus is a connecting link between
Ctenophora and Platyhelminthes
Mollusca and Echinodermata
Annelida and Arthropoda
Annelida and Arthropoda
Which one of the following has haplontic life cycle?
Funaria
Polytrichum
fully developed foetus and placenta
fully developed foetus and placenta
Trichoderma harzianum has proved a useful microorganism for
bioremediation of contaminated soils
reclamation of wastelands
gene transfer in higher plants
gene transfer in higher plants
Select the correct combination of the statement (A-D) regarding the characteristics of certain organisms.
A. Methanogens are Archaebacteria, which produce methane in marshy areas.
B. Nostoc is a filamentous blue-green algae, which fixes atmospheric nitrogen.
C. Chemosynthetic autotrophic bacteria synthesise cellulose from glucose.
D. Mycoplasma lacks a cell wall and can survive without oxygen.
B, C
A, B,C
B, C, D
B, C, D
Which one of the following is wrongly matched?
Puccinia - Smut
Root - Exarch protoxylem
Cassia - Imbricate aestivation
Cassia - Imbricate aestivation
T O Diener discovered a
free infectious RNA
free infectious DNA,
infectious protein
infectious protein
Phylogenetic system of classification is based on
evolutionary relationships
morphological features
chemical constituents
chemical constituents
