Q.1.

One of the following is most suitable for study of mutations

Q.2.

Monotremes are unique mammals because they

Q.3.

Photosynthesis takes place faster in

Q.4.

Photosynthesis is a process

Q.5.

Pulses are a good source of

Q.6.

out of proteins, lipids and carbohydrates present in a cell membrane, what is true?

Q.7.

Photosynthesis generally takes place in which parts of the plant?

Q.8.

Poison glands of snakes are homologous to

Q.9.

Nucleus, the genetic material containing rounded body in each cell, was first discovered inby

Q.10.

Plants absorb most part of water needed by them through their

Q.11.

Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

Q.12.

On which of the following plants did Gregor Mendal perform his classical experiment?

Q.13.

O2 released in the process of photosynthesis comes from

Q.14.

Oxygen in our blood is transported by a protein named

Q.15.

Potato is a modified form (outgrowth) of

Q.16.

Most fish do not sink in water because of the presence of

  1. swim bladder
  2. air bladder
  3. air sacs
  4. air in spongy bones
Q.17.

Radical vascular bundles are those in which

Q.18.

Primary phloem develops from

Q.19.

Photo-oxidation is

Q.20.

Pigmentation of skin is due to

Q.21.

Norepinephrine increases

Q.22.

Placenta is the structure formed

Q.23.

Nymph is the name of young one of

Q.24.

Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

Q.25.

Plants synthesis protein from

Q.26.

Plant bends towards the source of light on account of the movement of curvature known as

Q.27.

Other than spreading malaria, anopheles mosquitoes are also vectors of

Q.28.

Process of cell division can take place by

Q.29.

Night blindness is cause by lack of which vitamin?

Q.30.

Plants hormone that induces cell division is

Q.31.

One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?

Q.32.

Prothrombin which helps in clotting of blood is released by

Q.33.

Plants absorb dissolved nitrates from soil and convert them into

Q.34.

Plant have ____ while animals lack it.

Q.35.

Plants that grow in saline water are called

Q.36.

Most highly intelligent mammals are

Q.37.

Monocot root differs from dicot root in having

Q.38.

Neurospora is used as genetic material because

Q.39.

Plants that grow under average temperature and moisture are called

Q.40.

Myopia is connected with

Q.41.

Out ofreported species of living gymnosperms, conifers are represented by aboutspecies, About 2,50,species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

Q.42.

Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

Q.43.

Pyorrhoea is a disease of the

Q.44.

Plant development is influenced by

Q.45.

Phloem is a tissue found in

Q.46.

Most of the red, blue and purple colours of plants are due to a pigment called

Q.47.

One of the following is not a function of bones.

Q.48.

Prokaryotic cells lack

Q.49.

N2 content is kept constant in the biosphere due to

Q.50.

Ordinary table salt is sodium chloride. What is baking soda?