BIOLOGY M.C.Q (1 Marks)

Which is necessary for the complete governing programmes of reproductive health from follows ?

Which issues are produced due to reason of uncontrolled population growth?

Iron the following which one is contribute for producing awareness for reproductive health in individuals ?

Which of the following material takes the longest time for biodegradation ?

In which from express comperatively productivity of various ecosystems?

The active chemical drug reserpine is obtained from.

Which of the following forests is known as the "lungs of the planet Earth".

Among the ecosystem mentioned below, where can one find maximum biodiversity?

Which of the following statements is correct?

Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

Pyramids of numbers is:

A population has more young individuals compared to the older individuals. What would be the status of the populations after some years?

What would be the percent growth or birth rate per individual per hour for the same population mentioned in the previous question (Question 37).

If a population of 50 Paramoecium present in pool increases to 150 after an hour, what would be the growth rate of population?

In RNAi genes are silenced using :

Golden rice:

The trigger for activation of toxin of Bacillus thuringiensis is :

A bacterial cell was transformed with recombinant DNA that was generated using humna gene. However, the transformed cells did not produce the desired proteins Reason could be :

Which of the following steps are catalysed by Taq polymerase in a PCR reaction ?

Which of the following bacteria is not a source of restriction endonaclease?

The role of DNA ligase in the construction of recombinant DNA molecule is :

Methanogens do not produce:

The residue left after methane production from cattle dung is:

Big holes in Swiss cheese are made by a :

Which one of the following is not a nitrogen fixing organism?

The term 'totipotency' refers to the capacity of a :

The scientific process by which crop plants are enriched with certain desirable nutrients is called:

Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed:

AIDS is caused by HIV. Among the following, which one is not a mode of transmission of HIV?

Which of the following are the reaosns(s) for Rheamatoid arthritis ? Choose the correct option.
(i) Lymphocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate-pathegnis for foreign molecules from self cells is lost.

When an apparently healthy person is diagnosed as unhealthy by a psychiatrist, the reason could be that :

Match the scientists listed under Column 'A' with ideas listed Column 'B' :

Column A	Column B
(i) Darwin	(M) abiogenesis
(ii) Oparin	(N) use and disuse of organs
(iii) Lamarck	(O) continental drift theory
(iv) Wagner	(P) evolution by natural selection

Which of the following is an example for link species ?

The most accepted lie of descent in human evolution is:

Which type of selection is industrial melanism observed in moth Biston bitularie.

Who amongst the following scientists has no contribution in the development of  the double helix model for the structure of DNA ?

The human chromosome with the highest and least number of genes in them an respectively.

With regard to mature mRNA in eukaryotes.

Occasionally, a single gene may express more than one effect. The phenomenon is called:

Menedel's Law of indepent assortment holds good for genes situated on the

Which of the following will not result in variations among siblings ?

Diaphragms are contraceptive devices used by the females.
Choose the correct option from the statements given below:
(i) They are introduced into the uterus.
(ii) They are placed to cover the cervical region.
(iii) They act as physical barriers for sperm entry.
(iv) They act as spermicidal agents.

Which one of the following is not a male accessory gland ?

Acrosomal reaction of the sperm occurs due to:

A particular species of plant produces hight, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by:

Choose the correct statement from the following:

Autogamy can occur in a chasmogamous flower if:

When family planning programme started?

Which layers of microspirengia protect as functionally and help to release pollen from anther ?

Developed microsporangia is converted in which structure?