1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Agarose gel electrophoresis is used to separate DNA fragments. The DNA fragments separate due to __________ .

A
difference in their staining property
B
difference in the base sequence in them
C
positive charge on the fragments
D
difference in the size of fragments
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many of the following are the symbiotic nitrogen fixing micro-organisms?

Rhizobium, Anabaena, Frankia, Azotobacter, Nostoc, Clostridium, Beijerinckia, Klebsiella

A
2
B
3
C
4
D
5
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

CSF is secreted by

A
choroid plexus only.
B
Pia mater and choroid plexus only.
C
Pia mater, choroid plexus and ependymal cells lining the ventricles.
D
White matter, Pia mater and grey matter.
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Match the scientist in column I with their contribution in column II and choose the correct option.

Column - I Column - II
i. Alexander Van Humboldt a. Estimated 7 million species round the globe
ii. Rober ay b. Rivet popper hypothesis
iii David TIllman c. Species Area Relationship
iv. Paul Ehrlich d. Productivity stability hypothesis
A
$\mathrm{i}-\mathrm{b}$ ii - c iii - d iv - a
B
i - c ii -a iii - d iv - b
C
i-b ii-c iii-a iv-d
D
i - a ii - b iii - d iv - c
EXAM MAP