BIOLOGY M.C.Q (1 Marks)

Which elements are found in huge amount at the bottom of lake?

Trees, shrubs and hurbs serially arranged in which layer is arrangement stratification?

The one horned rhinoceros is specific to which of the following sanctuary.

What is common to the following plants: Nepenthes; Psilotum, Rauwolfia and Aconitum ?

Match the animals given in column A with their location in column B:

Column A	Column B
(i) Dodo	(A) Africa
(ii) Quagga	(B) Russia
(iii) Thylacine	(C) Mauritius
(iv) Steller's sea cow	(D) Australia

Choose the correct match from the following:

Uphill distribution of different species at various layers' is called _______________ .

An inverted pyramid of biomass can be found in which ecosystem ?

Productivity is the rate of production of biomass expressed in terms of:

Salt concentration (salibuts) of the sea measured in parts per thousands is:

According to Allen's Rule, the mammals from colder climates have:

Ecological niche is:

Choose the correct option regarding Retrovirus:

A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be:

The most important feature in a plasmid to be used as a vector is:

In agarose jel electrophoresis, DNA molecules are separated on the basis of their.

A recombinant DNA molecule can be produced in the absence of the following.

'Restriction' in Restriction enzymes refers to:

Which one of the following alcoholic drinks is porudced without distillation?

BOD of waste water is estimated by measuring the amount of

The primary treatment of waste water involves the removal of:

Match the following list of bioactive substances and their roles:

Bioactive substance	Role
(i) Statin	(A) Removal of oil stains
(ii) Cyclosporin A	(B) Removal of clots from blood vessels
(iii) Streptokinase	(C) Lowering of blood cholesterol
(iv) Lipase	(D) Immune-suppressive agent

Choose the correct match:

Which are called as Genetically modified organisms?

Which farming is useful for enhancement in food production in agriculture?

The universe is very old - almost _______________ old.

The disease chikunguniya is transmitted by:

The sporozoites that cause infections when a female Anopheles mosquito bites a human being are formed in:

Function of RNA is _______________ .

Appearance of antibiotic-resistant bacteria is an example of:

Analogous organs arise due to :

The bones of forelimbs of Whale, Bat, Cheetah and Man are similar in structure, because:

The promoter site and the terminator site for transcription are located at:

The net electric charge on DNA and histones is:

The fact that a purine base always paired through hydrogen bonds with pyrimidine base leads to in the DNA double helix:

In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine ?

If a genetic disease is transferred from a phenotypically normal but carrier fem to only some of the male progeny, the disease is:

Following statements are given regarding MTP, choose the correct options, giv below:
(i) MTPs are generally advised during first trimester
(ii) MTPs are used as a contraceptive method
(iii) MTPs are always surgical
(iv) MTPs are require the assistance of qualified medical personnel.

Choose the right one among the statements given below :

Emergency contraceptives are effective if used within :

A national level approach to build up a reproductively healthy society was take up in our country in:

Seminal plasma, the fluid part of semen, is contributed by:
(i) Seminal Vesicle
(ii) Prostate
(iii) Urethra
(iv) Bulbourethral gland

Spot the odd one out from the following structures with reference to the male reproductive system.

During microsprogenesis, meiosis occurs in:

The outermost and innermost wall layers of microsporangium in an anther are respectively:

A dicotyledonous plant bears flowers but never producers fruits and seeds. The most probable cause for the above situation is :

A society with people having physically and functionally normal reproductive organs and normal emotional and behavioural interactions among them in all sex- related aspects might be called _______________ .

Which is/are the past of stamen?

Give the fertile limbs of flower in plant.