1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Biosystematics aims at
A
the classification of organisms based on broad morphological characters
B
delmiting various raxa of organisms and establishing their relationships
C
the classification of organisms based on their evolutionary history and establishing their phylogeny on the totally of various parameters from all fields of studies
D
identification and arrangement of organisms on the basis of their cytological characteristics.
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Phenetic classification of organisms is based on
A
observable characteristics of rxisting organisms
B
the ancestral lineage of existing organisms
C
denodrogram based on DNA characteristics
D
sexual characteristics.
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Chromosomes in a bactertial cell can be 1 $$-$$ 3 in number and
A
are always circular
B
are always linear
C
can be either circular or linear, but never both within the same cell
D
can be circular as well as linear within the same cell.
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Tobacco mosaic virus is a tubular filament of size
A
300 $$ \times $$ 10 nm
B
300 $$ \times $$ 5 nm
C
300 $$ \times $$ 20 nm
D
700 $$ \times $$ 30 nm
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