Biology Mock Te...

Cyclical changes during reproduction in dogs are called

Ginger is an example of :

The layer which nourishes the developing pollen grains is 

Which among the following statements is/are correct with respect to parts of the flower?

1. Stamens are the male reproductive organs of the flower and are collectively known as Androecium.

2. To attract pollinators is one of the main functions of Corolla.

Which cell of the female gametophyte acts as the endosperm mother cell?

True fruits develop from

Which cells synthesize and secrete testicular hormones (androgens) in a man?

Which one of the following cells formed during gametogenesis is diploid?

Withdrawal of which of the following hormones is the immediate cause of menstruation ?

Which of the following statements is/are incorrect?

1. Parturition is induced by a complex neuroendocrine mechanism.

2. The milk produced during the initial few days of lactation is called colostrum which contains several antibodies absolutely essential to develop resistance for newborn babies. 

Which of the contraceptive method prevents ovulation?

Which of the following is not a sexually transmitted disease?

When Mendel cross-pollinated a tall pea plant and short pea plant, in the F1 generation,

A colour-blind woman is married to a man of normal vision. Their children will be -

When two genes are located very close to each other in a chromosome

Human blood ABO type is an example of 

During the biosynthesis of haemoglobin in sickle cell anaemic patients, CAC codon is transcribed to 

The transcribed RNA of a segment of DNA with the codons TAGCATACT is 

The polarity of the coding strand is:

Polypeptide chain formation in protein synthesis is initiated by:

Who performed the transformation experiment with Streptococcus pneumoniae?

What is the approximate total number of nucleotides in a Human genome?

Two genetically different organisms show similar adaptations due to:

Who among the following suggested that life must have developed from simple inorganic molecule?

The mutation theory expaining organic evolution was proposed by:

The cranial capacity of Homo habilis was 

A toxic substance responsible for chills and high fever recurring every three to four days in malaria fever is due to

Consider the following statements:

1. Both B and T cells originate in the bone marrow.

2. B cells are involved in cell-mediated immunity, whereas T cells are primarily responsible for humoral immunity.

Which of the statements given above is/are correct?

Tobacco smoke contains carbon monoxide which 

A semi-dwarf high yielding disease resistant wheat variety is

The edible marine fishes are

Which of the following are the main objectives behind Biofortification?

1. Protein content and quality

2. Vitamin content

3. Micronutrient and mineral content

4. Oil content and quality

Select the correct answer using the code given below.

Which bacterium causes curd?

Organic farming is a system in which the use of ______ is avoided.

Which of the following methods is most useful for the enzymatic amplification of specific gene segment of DNA?

Match Column I and Column II and select the right option given below

During the process of isolation of DNA, chilled ethanol is added to 

Which one of the following statements is not correct with regard to genetically modified organisms?

Working principle of ELISA is

Which of these is used as vector in gene therapy for SCID?

Which among the following constitute the upper part of the aquatic ecosystem?

Animal goes under winter sleep due to low temperature, is called ________.

Mycorrhiza is example of

Answer the following question:

Assertion (A): Primary succession occurs in a freshly harvested field.

Reason (R): Succession always occurs in a barren area.  

A sedimentary type of biogeochemical cycle is

More than 200 species of cichlid fish got extinct in the Lake Victoria because of 

Which of the following statements is/are true?

A- Endangered species are in the danger of extinction

B- All endemic species become endangered

C- Endemic spices may come under the threat of extinction on introduction of new species in that region

D- Hotspots have numerous endemic species

Select the correct statement about biosphere reserves.

Which of the following techniques is most suitable for the disposal of biomedical waste?

The prime contaminants for cultural or accelerated eutrophication are