STD 11 - 2. Biology classification — NEET STD 11 Science — Question

Seed dormancy is due to the

The feature which is common to both heartwood and sapwood is

Study the following statements and choose the incorrect statement :
(i) Prior to the work of Avery, MacLeod and McCarty, the genetic material was thought to be a protein. They concluded that DNA is the hereditary material.
(ii) Hershcy and Chase worked to discover whether genetic material was protein or DNA.
(iii) The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952).
(iv) Hershcy and Chase worked with viruses that infect bacteria called bacteriophage.
(v) Griffith was concluded that DNA transferred from dead to living bacteria.

Growth period of plant is generally divided into

How many Calvin cycle form one hexose molecule

Which of the following is not found in bacteria

The structure of protein which gives a three dimensional view is

The true embryo develops as a result of fusion of

Fibres associated with phloem are...... .fibres.