plants in his garden during noon. To
his surprise, only the leaves of grass
were found rolled inwards. The reason
(A) due to higher rate of transpiration.
es grass and Hibiscus
The element
29.
buman body is
(A) Calcium
could be
(B) Hydrogen
(C) Carbon
(D) Oxygen
(B) presence of more number of
stomata on the grass leaves.
(C) undifferentiated mesophyll in
30. Identify the e
grass leaves.
by the enzyme
(A) Interkind
(B) Synaptid
(C) Termina
(D) presence of Bulliform cells in the
grass leaves.
(D) Crossin
Answers
Question:
27. A student observes grass and Hibiscus plants in his garden during noon. To his surprise, only the leaves of grass were found rolled inwards. The reason could be
(A) due to higher rate of transpiration.
(B) presence of more number of stomata on the grass leaves.
(C) undifferentiated mesophyll in grass leaves.
(D) presence of Bulliform cells in the grass leaves.
29. The element whose percentage weight is highest in both earth’s crust and human body is
(A) Calcium (B) Hydrogen (C) Carbon (D) Oxygen
30. Identify the event in meiosis mediated by the enzyme recombinase.
(A) Interkinesis (B) Synaptic pairing (C) Terminalization (D) Crossing Over
Answer:
27. A student observes grass and Hibiscus plants in his garden during noon. To his surprise, only the leaves of grass were found rolled inwards. The reason could be (D) presence of Bulliform cells in the grass leaves.
29. The element whose percentage weight is highest in both earth’s crust and human body is (D) Oxygen
30. The event in meiosis mediated by the enzyme recombinase is
(D) Crossing Over
Extra Information:
Bulliform cells => Bulliform cells are also called as motor cells which are found on the leaves of monocots and they are large having bubble shaped cells. Cells are found in groups on upper part of leaves.
Oxygen almost takes 65% of weight of each person and is also present in earth's crust at the highest percentage weight.
Recombinase=> These are type of enzymes which helps in speeding up the recombination events which happen in DNA.