Biology Mock Te...

The type of fertilization that takes place in human being is:

Which of the following pair is correct?

I. Spore formation – asexual reproduction

II. Fragmentation – sexual reproduction

During the Microsporogenesis meiosis occurs in

Emasculation is achieved by ________________.

Which one of the following pair in the female gametophyte does NOT have haploid number of chromosomes?

In an angiosperm the free nuclear division takes place during the formation of which of the following ?

Hormones responsible for menstrual cycle are produced from

Which among the following are the functions of testes during puberty?

Which of the following layers is the outer layer of the blastocyst?

Which of the following hormone helps in parturition in human beings?

Which of the following contraceptives prevent pregnancy by suppressing sperm motility

In assisted reproductive technologies (ART), the GIFT technique cannot be used for the females

"Passing of like qualities from one generation to the next" is the definition of which of the following?

A fly of Drosophila is trisomic for one of the chromosomes A, B, C and D. Which one among following expressions is correct for this animal ?

In honeybee colony, the drones are produced by

On what basis did Mendel give the law of purity of gametes?

In a Mendelian test, tall pea plants with violet flowers and short flowers with white flowers were used for breeding. All the flowers of their progeny were violet in color but about half of the plants were small in stature. This shows that the genetic composition of tall plants can be represented as:

What should be the most important property of a genetic material?

Replication of DNA occurs in:

The characteristics features of the genetic code are

i. It is always universal

ii. It is a triplet of nucleotides bases corresponding to 20 amino acids

iii. It is non-overlapping, non-ambiguous, and commaless

iv. It has start and stop codon

Which of the statements given above are true?

If E. coli is grown in the absence of lactose, it will stop the synthesis of 

Who was the father of DNA fingerprinting?

Which of the following theories are related to the evolution of life?

A. The theory of natural selection

B. Mutation theory of evolution

C. Theory of inheritance of acquired characteristics

D. Theory of segregation

When comparing two animals, we can say they have analogous organs, if the organs ______. 

Who proposed that chemical evolution preceded biological evolution?

The recent era is

Infection of Ascaris usually occurs by

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to

The genes concerned with the production of cancer are called

Select the cowpea variety resistant to Bacterial blight disease.

Yellow mosaic in lady finger is a ______ disease. 

Given below are the steps for plant breeding technique:

A. Selection and testing of hybrids

B. Selection of parents

C. Collection of germplasm

D. Crossing of selected parents

E. Testing and release of new cultivars

Choose the correct sequence from the options below.

Which of the following microbe is responsible for curd formation?

Which of the following is NOT a constituent of biogas?

Which of the following tools of recombinant DNA technology is incorrectly paired with its use

A bacterial cell was transformed with a recombinant DNA molecule that was generated using a human gene. However, the transformed cells did not produce the desired protein. Reasons could be 

Which of the following should be chosen for best yield if one were to produce a recombinant protein in large amounts 

Read the assertion and reason carefully to mark the correct option:

Assertion: A gene from Bacillus thuringiensis is incorporated in plant genome to increase yield.

Reason: It is Bt toxin producing gene which kills larvae of insects.

A tumour inducing plasmid widely used in the production of transgenic plants is that of 

The first clinical gene therapy was done for the treatment of 

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

The formula for exponential population growth is

Symbiosis in general involves:

The pyramid that cannot be inverted in a stable ecosystem, is pyramid of

The primary source of energy in an ecosystem is:

When peacock eats snakes which eat insects thriving on green plants, the peacock is

Which of the following is/are the cause/s of biodiversity loss?

1. Fragmentation of Habitat

2. Over-exploitation of natural resources

3. Introduction of invasive species

Select the correct answer using the code given below.

The variation shown by Rauwolfia vomitoria in different Himalayan ranges represents

Eichhornia crassipes is also known as-

1. World's most problematic aquatic weed

2. Terror of Bengal

Choose the correct code-

Green house effect is related to: