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Regarding assertion and reason, choose the correct option

Assertion [A] : Emasculation and bagging are essential in artificial hybridisation

Reason [R] : Both the steps are essential to avoid contamination from unwanted pollen

The grey colour upper surface of cerebrum is called (1)__. It is grey due to the presence of (2)__ The elevated ridges of tissue on the surface of the cerebral cortex are known as (3)__ while the shallow grooves are termed (4)__.

The disease, in which thick cough stops the passage of throat and forms a layer of mucous membrane, is called

Deficiency of testosterone causes ___ and deficiency of oestrogen causes ____.

Regarding assertion and reason, choose the correct option

Assertion [A]: Plant breeding leads to improvement of crop plants

Reason [R]: Plant breeding dates back to 9, 000 to 11, 000 years ago

Choose the correct answer among the following options

A. Epinephrine (i) Stimulates muscle growth

B. Testosterone (ii) Decrease in blood pressure

C. Glucagon (iii) Decrease in liver glycogen

D. Atrial natriuretic factor (iv) Increase heart beat

Total number of base pairs found in human genome is

Match the following.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Troponin}& \text{a. Blocks the attachment site for the myosin cross bridge}\\ \text{ii. Tropomyosin}& \text{b. Has a myosin binding site}\\ \text{iii. Actin}& \text{c. Complex of 3 polypeptide units}\end{array}$

What is the most important factor for the success of animal population?

What is the eye of potato?

Identify the correct set related to biofortified crops.

An inactive period when the embryo puts its development on hold is termed as

In the given equation relating to the species-area relationship, what does ‘z’ stands for?

Log S = Log C + zlog A

Presence of blood in urine indicates_____

Athletes trained for endurance, such as swimmers and marathon runners, have a higher stroke volume at rest mainly because they have

Match the pollutants listed in column I with the respective diseases mentioned in column II:

$\begin{array}{cccc}& Column-IPollutants& & Column-IIDiseases\\ A& S{O}_x& e& Hypoxaemia\\ B& Domesticsewage& f& Bronchitis\\ C& Mercury& g& Minamatadisease\\ & & h& Amoebicdysenetry\end{array}$

The animals which are exclusively aquatic, sessile, with cellular level of organisation of the body are placed in phylum _____

Series of changes on previously barren area is

In the tail of the sperm, the mitochondria are

Crossing over results in ___.

Regarding the assertion and reason, choose the correct option:

Assertion [A]: Most reptiles are examples of thermophiles.

Reason [R]: Thermophiles can thrive only in low temperatures.

Match the following organs/components with the elements which they help in excreting:

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Lungs}& \text{a. Low amount of nitrogenous waste}\\ \text{ii. Sebaceous secretion}& \text{b. Sodium chloride and lactic acid}\\ \text{iii. Sweat}& \text{c. Hydrocarbons, sterols and waxes}\\ \text{iv. Saliva}& \text{d. Carbon dioxide}\end{array}$

The placenta is in centre in which of these plants?

During prolonged fasting, in what sequence are the following organic compounds used up by the body?

Members of which of the following phyla are bilaterally symmetrical and triploblastic?

Fibrous mesocarp is seen in a plant

In a cell cycle, the phase of minimum duration is ___.

A symbiotic relationship/interaction in which 'one species benefits and the other species is not affected is called:

Cellular immunity takes care of

Lichens are the associations of:

What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

Which of the following dye is best suited for staining chromosomes?

Pollination occurs in

The loose connective tissue that can store fat and act as a thermoregulator in mammals is____

Which of the following processes require emulsification?

Match the columns and choose the correct option

$\begin{array}{cccc}& \text{I}& & \text{II}\\ \text{(a)}& \text{Free living aerobic nitrogen fixers}& \text{1}& \text{Anabaena and Nostoc}\\ \text{(b)}& \text{Anaerobic nitrogen fixers}& \text{2}& \text{Pseudomonas and Thiobacillus}\\ \text{(c)}& \text{Nitrogen fixing cyanobacteria}& \text{3}& \text{Nitrosomonas and Nitrosococcus}\\ \text{(d)}& \text{Denitrifying bacteria}& 4& \text{Azotobacter}\\ \text{(e)}& \text{Nitrifying bacteria}& 5& \text{Rhodospirillum}\end{array}$

Velamen cells are found in epiphytes:

Which of the following organisms are in symbiosis in a mycorrhiza?

A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandsons from the sons being colour blind ?

Subneural blood vessel in an earthworm bifurcates and then continues as _________

Melatonin is secreted by _____.

From______acid, more than 17 amino acids are formed through transamination.