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Pick the correct option of elements present in human body

Match the following structures in molluscs to their respective functions:

Column I Column II

1) Radula a) Blood pigment

2) Mantle layer b) Mastication

3) Foot c) Secretion of shell

4) Haemocyanin d) Locomotion

Which part of the stem is primarily involved in radial conduction of water and food?

Identify the phenomena labelled P, Q and R in the given image

Most multicellular eukaryotes form gametes by

Factors vital for successful conception is/are

In an enzymatic reaction, when will the substrate concentration be equal to the Michaelis constant, Km?

Lichens are well known combination of an alga and a fungus where fungus has :

Which of the following proteins is a constituent of nails, hair and feathers?

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body due to:

The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy?

Which of the following cannot serve as a vegetative propagule?

If a cell with OP 10 bars ad TP 4 bars is connected to cells B, C and D having OP and TP respectively 4 and 4, 10 and 5 and 7 and 3 bars, the flow of water will be

Element present in middle lamella

The three rods shown in figure have identical dimensions. Heat flows from the hot end at a rate of $40\text{W}$ in the arrangement (a). Find the rates of heat flow when the rods are joined as in arrangement (b). (Assume $k_{Al}=200\text{W/m}{}^{\circ }\text{C}$ and $k_{Cu}=400\text{W/m}{}^{\circ }\text{C}$)

Increased asthmatic attacks in certain seasons are related to :

Most widely used bioweapon is

Which of the following does not occur during the Calvin cycle?

A long day plant is:

The pituitary gland is located at a specific part of the brain called _____.

The ratio between pollen mother cell and microspores produced during microsporogenesis is -

A composite string is made up by joining two strings of different mass per unit length $\mu$ and $4\mu$. The composite string is under the same tension. A transverse wave pulse is sent along the lighter string towards the joint. The ratio of wave number of incident wave to the transmitted wave is

Sunflower exhibits _________ placentation

Male gametes in angiopserms are formed by the division of:

Which of the following is the correct labelling ?

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is

A single nucleoside consists of

The cross between an individual with unknown genotype and recessive parent is called a ___.

Which of the following statement is not true for a clone?

Due to low atmospheric pressure, the rate of transpiration will

Which of the following gas is not involved in greenhouse effect?

Intercalary meristem is a type of

Cuboidal: Epithelial:: Cardiac: _______

Select the mismatch from the following options.

Which of these could be responsible for chirality in an amino acid?

Assume that the total surface area of a human body is 1.6 $m^2$ and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37${}^{\circ }$ C.Stefan constant $\sigma$ is $6.0\times {10}^{-8}W/m^2-K^4$.

Which of the following are steps in genetic modification of an organism?

Sunflower is

Given the diagram of L.S of a part of bark region of plant. Choose the answer with the correct combination of parts and alphabets.

Which one of the following groups of plants do not show clear cut demarcation between three phases of life cycle?

Which one of the following disease is caused by virus?

Dendrochronology means the study of ________

Seed coat develops from:

A man having black eyes, whose father had blue eyes, marries a woman having blue eyes. If black eye is dominated over blue eyes, then what percentage of their offsprings can be blue-eyed?