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Which of the following statements is NOT correct about photosynthesis?

The parenchymatous cells between the xylem and the phloem in a dicot root constitute _______________.

People living at sea level have around 5 million RBCs per cubic millimetre of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,

Main cause of eutrophication is

Which of these factors can cause erythroblastosis foetalis when it passes from mother to foetus through placenta?

Antibody-mediated immunity is also known as _________.

Which of the following nerves causes the adrenal medulla to release epinephrine and norepinephrine and also speed up body activities?

Thigmotropism is best seen in

Repeated selfings produces:

Excretory organs of Earthworm are_______.

Which one of the following describes saltatory conduction ?

Which one of the following is not considered as a part of the endomembrane system?

The lungs are covered by a two-layered membrane called the:

Gene frequency, gene flow, population density, age distribution, over population are the attributes of

The DNA of bacterium is NOT

Treeless terrestrial biome of cold climate is

Arrange the water potential values of the following in ascending sequence during upward movement of water.

A. Atmosphere

B. Leaf xylem

C. Xylem of the stem

D. Root xylem



E. Soil solution

Match the following

$\begin{array}{cccc}A.& \text{Zoophily}& 1.& \text{Pollination by birds}\\ B.& \text{Ornithophily}& 2.& \text{Pollination by insects}\\ C.& \text{Entomophily}& 3.& \text{Pollination by bats}\\ D.& \text{Chiropterophily}& 4.& \text{Pollination by animals}\end{array}$

Probes, used in DNA fingerprinting, are initially.

Male gametes are produced more than female gametes in most of the organisms to -

What is the correct sequence of events in the cross bridge formation?

i. The power stroke

ii. Cross bridge formation

iii. Myosin head is activated by ATP

iv. Calcium released binds to the troponin unblocks the actin sites

v. Cross bridge detachment

vi. Reactivation of the myosin head

Fill in the blanks

Broilers are reared on poultry farms exclusively for their__(i)___ and layers are the ones that are reared exclusively for__(ii)___.

Cockerels are___(iii)___ male fowls and roosters are ___(iv)_____ male fowls.

Minamata disease is caused due to the presence of______in water.

Which of the following are true for phagocytosis?

The Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year

RNA interference which is employed in making tobacco plant resistant to Meloidegyne incognita is essentially involved in preventing the process of

In yeast, which of the following does not occur during anaerobic respiration?

Substrate level phosphorylation does not occur in which of the following reaction of aerobic respiration?

The organisms having mesoglea lack________

Solution A has ${\Psi }_S=–30$ bars and ${\Psi }_P=5$ bars. Solution B has ${\Psi }_S=–10$ bar and ${\Psi }_P=0$ atm. The two are separated by semipermeable membrane. Flow of water will be

Explant required for virus free culture is

The mitocytes, meiocytes and meiospores present in the anther respectively are

Why are the chances of an offspring being male or female always 50:50?

Which of the following are simple lipids?

Which of the following is a measurment of organic matter of water ?