List of top Biology Questions

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:

Following table summarises the differences between a monocot root and a dicot root. Identify the incorrect differences and select the correct option.

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout, the year to increase yield ?

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL ?

Which one is the oldest in following?

RNA binds to mRNA through

Which one of them is odd with respect to human male?

Identify the diagram of heteocyst.

Eutrophication is caused due to

Among the following choose the correct epimers.

Gynaeocomastia is present in which syndrome?

In gluconeogensis, which of the following cannot act as substrate?

Synaptonemal complex is formed

Flame cells are present in

Chl- b differs from chl-a by

In annealing

Atlas is

Typhoid is caused by

Number of chromosomes present in secondary spermatocyte is

Cocervates were discovered by

Which of the following is uricotelic?

Choose the correct regarding antibodies

Reproduction without actual fertilisation is called as

Radula is a part of which animal

Choose correct option for larva of housefly