Biology Mock Te...

Fruit Production without fertilization is called-

Cleistogamous flowers are pollinated by

In human female, the ovarian cycle begins when the 

Cu⁺⁺ released from copper releasing intra uterine devices, 

Which of the following is an Asexual method of reproduction?

What do you mean by encystation?

The embryo sac is bounded by the wall of _______.

The foetal ejection reflex triggers the release of which hormone?

During fertilisation the sperm comes in contact with the _________ layer of the ovum?

What is correct for test tube baby?

Which of the following statements is are correct?

1. The testes are situated outside the abdominal cavity within a pouch called the scrotum.

2. The scrotum helps in maintaining the high temperature of the testes (higher than the normal internal body temperature) necessary for spermatogenesis.

Double fertilization is the process in plants that includes

Process of transcription in bacteria involves

Which one of the following anticodons are used for the translation of t-RNA during the biosynthesis of hemoglobin in sickle cell anemic patients?

Natural parthenogenesis occurs in

In a DNA molecule, hydrogen bonds are formed between which of the following?

Which of the following not a characteristic of Genetic code?

Which part of gene is not available in mature mRNA?

The crossing over frequencies between the genes A and B, A and C and B and C are 8%, 15% and 23% respectively. What is the possible sequence of genes on chromosomes?

Down’s syndrome is caused due to: ______.

Birds are the example of _____ type of sex determination

Skin colour in man is an example for

Thalassemia is an autosomal recessive disorder of man. You have sampled a population where 16% of the people are affected with the disease. What will be the frequency of heterozygotes, assuming random mating in the population?

In 1953 S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for the origin of the first form of life from preexisting non-living organic molecules. The primitive earth conditions created include:

Select the correct set of homologous organs - 

Which scientist gave the theory of mutation?

A patient is suspected to be suffering from Acquired Immuno Deficiency Syndrome (AIDS). Which diagnostic technique will you recommend for its detection

Which of the following is NOT a feature of a cancer cell?

Bhang and Ganja are 

Which of the following symbiotic microorganisms is nitrogen fixing?

The best method to overcome inbreeding depression is:

The process of improving the nutritional quality of food crops is termed as:

Which of the following part of a healthy plant should be used as explants to produce haploid plant?

Which one of the following is the correct match of the product and the producer?

Recombinant DNA technology (Genetic Engineering) allows genes to be transferred

1. across different species of plants

2. from animals to plants

3. from microorganisms to higher organisms

Select the correct answer using the codes given below.

A gene of interest is cloned between Pst I and Pvu I sites in pBR322.The resultant plasmid has the ability to grow in medium containing ________ antibiotic.

One of the insertional techniques for recombinant DNA is by making a competent cell. Which of the following is NOT used in this process?

Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because

"The use of bio-resources by multinational companies and other organisations without proper authorisation from the countries and people concerned without compensatory payment" is termed as 

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

Read the following statements and choose the correct option.

Assertion(A) - Acclimatisation is temporary adjustment of organism to surroundings.

Which one of the following is NOT a functional unit of ecosystem?

Mycorrhiza represents:

The degradation of humus to release inorganic nutrients is called

Which among the following is the pioneer species during hydrarch succession?

If 1000 J energy is available at the producer level in a food chain then the energy available at the secondary consumer level will be

Consider the following pairs:

Type of Diversity Example

1. Genetic diversity: Mangroves Forests and Rain Forests

2. Species diversity: Greater amphibian species in the Western Ghats than the Eastern Ghats

3. Ecosystem diversity: Different varieties of Mango found in India

Which of the pairs given above is/are correctly matched?

Which one has the highest percentage of endangered species? 

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Motor vehicles equipped with catalytic converter should use unleaded petrol

Reason: Lead in the petrol activates the catalyst

Which of the following chemical compound causes Bio-magnification?