📚
NEET Biology 2019 PYQs
Previous Year Questions
•
NCERT Based
•
Instant Feedback
📝 NEET 2019
📘 NCERT Focused
🤖 AI Explanations
This page score:
0 /40
90 questions in NEET 2019
Which of the following pair of organelles does not
contain DNA:
A
Mitochondria and Lysosomes
B
Chloroplast and Vacuoles
C
Nuclear envelope and Mitochondria
D
Lysosomes and Vacuoles
Show explanation
Explanation will be generated when opened.
The shorter and longer arms of a submetacentric
chromosome are referred to as:
A
p-arm and q-arm respectively
B
s-arm and l-arm respectively
C
q-arm and p-arm respectively
D
m-arm and n-arm respectively
Show explanation
Explanation will be generated when opened.
Which of the following statements regarding
mitochondria is incorrect?
A
Mitochondrial matrix contains single circular
DNA molecule and ribosomes.
B
Inner membrane is convoluted with infoldings.
C
Enzymes of electron transport are embedded
in outer membrane.
D
Outer membrane is permeable to monomers of
carbohydrates fats and proteins.
Show explanation
Explanation will be generated when opened.
DNA precipitation out of a mixture of biomolecules
can be achieved by treatment with:
A
Chilled ethanol
B
Isopropanol
C
Methanol at room temperature
D
Chilled chloroform
Show explanation
Explanation will be generated when opened.
Which of the following is a commercial blood
cholesterol lowering agent?
A
statin
B
Lipases
C
Streptokinase
D
Cyclosporin A
Show explanation
Explanation will be generated when opened.
Consider the following statements:
A
Both (A) and (B) are true.
B
(A) is true and (B) is false.
C
Both (A) and (B) are false.
D
(A) is false and (B) is true.
Show explanation
Explanation will be generated when opened.
Cells in G0 phase:
A
enter the cell cycle
B
suspend the cell cycle
C
terminate the cell cycle
D
exit the cell cycle
Show explanation
Explanation will be generated when opened.
The correct sequence of phases of cell cycle is:
A
G1 → S→ G2
→ M
B
M→ G1 → G2 → S
C
G1 → G2 → S→ M
D
S→ G1 → G2 → M
Show explanation
Explanation will be generated when opened.
Xylem translocates:
A
Water only
B
Water and mineral salts only
C
Water, mineral salts and some organic nitrogen
only
D
Water, mineral salts, some organic nitrogen and
hormones
Show explanation
Explanation will be generated when opened.
Grass leaves curl inwards during very dry weather.
Select the most appropriate reason from the
following:
A
Flaccidity of bulliform cells
B
Closure of stomata
C
Shrinkage of air spaces in spongy mesophyll
D
Tyloses in vessels
Show explanation
Explanation will be generated when opened.
