Explore topic-wise InterviewSolutions in Current Affairs.

Question 25

State the role of centrioles other than spindle formation.

Answer the following

(i) name the major site where RBCs are formed.

(ii) Which part of heart is responsible for initating and maintaining its rhythmic activity?

(iii) what is specific in the heart of crocodiles among reptilians?

Effect of pollen on the type of endosperm formation is called

What is the process that is exhibited by cryptogams as part of their reproductive cycle, that enables them to stabilise the chromosomal number when required ?

The different forms of interbreeding species that live in different geographical regions are called

Organic farming is raising crops through use of:

The most active of all the white blood cells in terms of mobility and phagocytosis are

Can you describe what happens when milk is converted into curd or yoghurt from your understanding of proteins?

Question 16

What does 'S' refer in a 70S and 80S ribosome?

Which of these is the class that the domestic dog belongs to?

Write two energy yielding reactions of glycolysis.

What are porins? What role do they play in diffusion?

Meaning of PEN

Which of the following are examples of sexual dimorphism?

What is the fate of the primary xylem in a dicot root showing extensive secondary growth?

Which step does not involve in DNA finger printing?

Wings of butterfly and bats are:

If vagus is cut

Which of the following holds true for smart mouse?

In the given diagram, identify A, B and C?

Enzyme immobilization is:

In the tail of the sperm, the mitochondria are

Niche, in an ecosystem refers to

Core, buffer and manipulation zones are found in

upon contraction of sarcomere in skeletal muscle fibres , reduction is not observed in?

1. length of actin filaments

2. size of region enclosed by 2 z lines

3. h zone

4. i band

0.16g of dibasic acid required 25 ml of decinprmal NaOH solution for complete neutralisation. The molecular weight of acid will be

In the overall process of photosynthesis, the number of CO₂, water, sugar and 0₂ molecules utilised and produced is

Haematopoiesis is the process of

What essential role does the root endodermis play during mineral absorption in plants?

Which of the following are responsible for refraction and focusing?

Question 29.2

On an educational trip to Uttaranchal, Ketki and her friends observe that many local people were having swollen necks, Please help Ketki and her friends to find out the solutions to the following questions.

How is it caused?

In parasympathetic nervous system, which of the following is released?

Plants are generally immune to a wide variety of pathogens. This is due to

What is the major advantage of producing plants by micropropagation?

Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.

Select the correct statements from the following

(A) At high light intensities, plants show increase in rate of photosynthesis.

(B) Tropical plants have higher temperature optimum than the plants adapted to temperate climates.

(C) The effect of water as a factor is more through its effect on the plant, rather than directly on photosynthesis

Which of the following is the male gametophyte in angiosperms?

Match of following columns

$\begin{array}{cc}\text{column-I}& \text{column-II}\\ \text{A.Water}& \text{1.Release of metabolic energy}\\ \text{B.Oxygen}& \text{2.Optimum enzymatic activity}\\ \text{C.Nutrients}& \text{3.Cell enlargement/turgidity}\\ \text{D.Temperature}& \text{4.Synthesis of protoplasm}\end{array}$

_______ are underground horizontal stems, whereas ________are above ground horizontal stems.

Which among the following is incorrect related to producing a new variety through plant breeding?

The Ornithine cycle in liver, removes two waste products from the blood. These products are

Which two minerals are not needed by the majority of plants but needed by almost all animals?

Read the following five statements (A toE) and select the option with all correct statements :

(A) Mosses and Lichens are the first organisms to colonise a bare rock.

(B) Selaginella is a homosporous pteridophyte.

(C) Coralloid roots in Cycas have VAM.

(D) Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.

(E) In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.