Heredity

The classical Mendel’s work on his 'laws of inheritance' was performed on the organism –

Genome mapping relates to :

Change in the base sequence within a gene is called:

The unit of heredity in our body is called :

Which compound present in D.N.A. does not form amino acid ?

The sugar present in DNA is :

Who has proposed for the first time the double helix model of DNA?

How many chromosomes are there in humans?

Which of the following does not have sex-chromosome?

Which of the following is a source of bio-fertilizer?

Which of the following is/are used as biofertilizers? Select the correct answer from the codes 2given below: 1. Azolla 2. Blue-green algae 3. Alfalfa 4. Nitrolin Codes :

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

Nitrogen fixing bacteria make combination with cells of the roots of

Which of these is not correctly matched

Blue-green algae are chiefly used as biofertilizer in the crop of -

Which of the following is associated with biological nitrogen fixation?

Azolla is often used as biofertilizer because it is associated with -

The aquatic plant commonly used as bio-fertilizer in the water-logged rice field is :

The capability of nitrogen use efficiency can be increased in crop production by-

Which of the following is phosphatic biofertilizer?

Which bacteria is responsible for nitrogen fixation in soyabean?