1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
During the metaphase stage of mitosis, spindle fibres attach to chromosomes at
A
kinetochore
B
both centromere and kinetochore
C
centromere, kinetochore and areas adjoining centromere
D
centromere.
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere?
A
Aerobic nitrate oxidation and nitrate reduction
B
Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds
C
Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes
D
Anaerobic ammonium oxidation and denitrification
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which of the following elements is a constituent of biotin?
A
Magnesium
B
Calcium
C
Phosphorus
D
Sulphur
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Specialized cells for fixing atmospheric nitrogen in Nostoc are
A
heterocysts
B
hormogonia
C
modules
D
akinetes.
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