Explore topic-wise InterviewSolutions in Current Affairs.

In a synapse, chemical signal is transmitted from :

(a) axon to cell body of the same neuron

(b) cell body to axon end of the same neuron

(c) dendrite end of one neuron to dentrite end of adjacent neuron

(d) axon end of one neuron to dendrite end of adjancent neuron

Involuntary actions in the body are controlled by:

Why are glomeruli considered as dialysis bags?

Does the blood passed by aorta go around the whole body with getting filtrated by kidney

A potato is cut into a number of small pieces, these potato pieces are placed on wet cotton kept in a tray . After a few days, green shoots and roots appear only from some potato and not from all potato pieces. Why?

In which phase do the nuclear membrane and nucleolus disappear?

Mock drill is the:

The curvature of shoot due to auxins during phototrophic movements occurs at ______________.

Which of the following is an essential feature of barter system?

Q3. Look at the following statements about B Cells

1. They are a type of red blood cell of the lymphocyte subtype

2. Many B cells mature into what are called plasma cells that produce antibodies (proteins) necessary to fight off infections while other B cells mature into memory B cells.

3. B cells mature in the bone marrow, which is at the core of most bones

Which of the above statements are correct?

Which energy can be harnessed from sea ?

1. Tidal energy

2.Wave energy

3. Ocean thermal energy

4.Solar energy

5.Geo-thermal energy

The bending of the stem of a plant towards a source of light is caused by the action of a phytohormone known as :

(a) abscisic acid

(b) auxin

(c) gibberellins

(d) cytokinin

A plant with two 'small' genes breeds with a plant with two 'tall' genes to prooduce :

(a) small plants and tall plants in the ratio 1 :3 (b) all small plants

(c) all tall plants (d) tall plants and small plants in the ratio 3 : 1

The underactive endocrine gland which causes goitre is :

(a) pancreas

(b) thyroid

(c) adrenal

(d) pituitary

Which is the correct sequence of a walking cycle?

1. First leg pulled forward

2. Second leg becomes stiff and firm on ground

3. Swing of the leg and planting it forward

4. Second foot lifts off

Regarding assertion and reason, select the right option.

Assertion [A]: Mendel could not come up with physical proof for the existence of his factors, now known as genes or chromosomes

Reason [R]: Chromosomes were discovered only after 1900 due to advancements in microscopy.

The normal gestation period in humans is :

(a) 270 days (b) 290 days

(c) 280 days (d) 295 days

Is it possible for the blood to clot under the skin? Give a reason to support your answer.

What is the importance of variation?

Q59. A proposed regulation in a mega city in India requires with future effect the installation in commercial complexes, of sprinklers automatically triggered by the presence of a fire. However, an architect argued that because employees extinguish more than 85% of fires in commercial complexes, sprinklers would only marginally decrease property damage caused by fires.

Which of the following, if true, would most seriously weaken the architect's argument?

In what order do inhibition, diffusion and osmosis occur?

The table below shows qualities of two varieties of coconut.

$$\begin{array}{cccc}Variety& LifeSpan& DiseaseResistance& Yieldin\\ A:ChavakkadOrange& 30-35years& High& 4-5years\\ B:Lakshadweep& 80-100years& Low& 6-8years\end{array}$$

Suppose a new variety is formed by incorporating the gene for disease resistance from Chavakkad orange variety to Lakshadweep variety. What set of characters will the new variety show?

__________________ stimulates the breakdown of glycogen to glucose

Which of the following phases involve the replication of DNA in preparation for mitosis?

Differentiate between involuntary action and reflex action

With the help of an example, explain how variation leads to evolution.

Name the glands associated with the digestion of carbohydrates in the human alimentary canal and mention their role ?

What are photosynthesis

Statement 1: Adrenaline is considered an emergency hormone.

Statement 2: Pituitary is usually called master gland

Which of the following is/are threats to mankind due to genetic engineering?

________ gives rise to shoot and________ gives rise to root of plant.

From the pictures given below, state why are there are so many varieties in butterflies and chillies?

Colour perception in man is due to

Find out the type of contraceptive methods for the following groups ;

I. Condoms, copper-T, loops

II. Vasectomy, Tubectomy

III. Morning pills, oral pills,

why fish become died after thrown out from water?

Convergent evolution is illustrated by:

What are the characteristic features of endocrine glands?

What is a gene? [1 MARK]

Match the following.