List of top Biology Questions

Phosphoenol pyruvate (PEP) is the primary CO₂ acceptor in :

An example of colonial alga is

Which of the following options gives the correct sequence of events during mitosis?

Myelin sheath is produced by

During DNA replication, Okazaki fragments are used to elongate

The hepatic portal vein drains blood to liver from

The association of histone H₁ with a nucleosome indicates:

The vascular cambium normally gives rise to

The morphological nature of the edible part of coconut is

Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?

Anaphase promoting complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?

Which of the following components provides sticky character to the bacterial cell?

Which of the following is made up of dead cells?

Spliceosomes are not found in cells of

An important characteristic that Hemichordates share with Chordates is

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by

Which of the following statements is correct?

Double fertilization is exhibited by

Which of the following are found in extreme saline conditions?

Which of the following are not polymeric?

MALT constitutes about ____ percent of the lymphoid tissue in human body.

Functional megaspore in an angiosperm develops into

The pivot joint between atlas and axis is a type of

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?
(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen transport

Fruit and leaf drop at early stages can be prevented by the application of