List of top Biology Questions

Krebs cycle begins with which of the following reaction?

Phytochrome occurs in two forms. In which form(s) does it promote the germination of seeds of some species?

Abortions are much riskier _____.

The amount of energy provided by fat is ____.

In which part of the excretory system of the human body urine is it stored before passing urine?

The sino-atrial node is the normal pacemaker of the human heart because:

Which of the following gases is primarily responsible for eutrophication of water bodies?

Which one of the following shows the correct sequence of the path of urine in the human excretory system?

The sex of the children will be determined by what they inherit from the:

__________ is the result of an artificial hybridization between radish and cabbage.

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus

The percentage of forest cover recommended by the 'National Forest Policy' (1988) is:

What is true in process of fertilization?

Southern blotting is:

Did you know haemoglobin has the quaternary structure of a protein? But why? Attempt this question to get the answer.The major reason behind some proteins having quaternary structure is:

Which of the following correctly represents the arrangement of organisms in increasing order of concentration of heavy metals in their body?

Which of the following is a factor on which the transport of food in plants depends?

Tetrad analysis confirmed the occurrence of crossing over during tetrad stage. This was first reported in_____.

What percentage of ventricular filling is achieved by atrial contraction?

A frog has its brain crushed. But when pinched on the leg. The leg draws away. It is an example of:

The path that leads from the throat to the lungs is known as:

Ceremonial burial of dead body was started by _________.

Match the hominids with their correct brain size.HominidsBrain Sizea) Homo habilis(i) $900$ ccb) Homo neanderthalensis(ii) $1350$ ccc) Homo erectus(iii) $650-800$ ccd) Homo sapiens(iv) $1400$ cc

During which period, life didn’t exist?

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