List of top Biology Questions

Which of the following statements about ozone is correct?

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due t o :

Which of the following is against the rules of ICBN?

Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is

Select the correct option.

Both, autogamy and geitonogamy are prevented in

The given figure represents the Malpighian body. Identify the labelled parts $A$ to $D$ and select the correct option

Which of the statements given below is not true about formation of Annual Rings in trees?

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:

Choose the right one among the statements given below

Which of the following statements is correct ?

Select the correct sequence of events :

Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage ?

The concept of "Omnis cellula-e cellula" regarding cell division was first proposed by :

Purines found both in DNA and RNA are ;

Xylem translocates:

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

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

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 ?

RNA binds to mRNA through

Which one is the oldest in following?

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

Identify the diagram of heteocyst.

Gynaeocomastia is present in which syndrome?