List of top Biology Questions

Two microbes found to be very useful in genetic engineering are-

Pineapple (ananas) fruit develops from-

A common structural feature of vessel elements and sieve tube elements is:

Triticale, the first man-made cereal crop, has been obtained by crossing wheat with :

Conifers differ from grasses in the-

Long filamentous threads protruding at the end of a young cob of maize are:

Which one of the following pairs of an animal and a plant represents endangered organisms in India -

What type of placentation is seen in sweet pea?

Which one of the following is not used for construction of ecological pyramids?

Sulphur is an important nutrient for optimum growth and productivity in:

In photosystem-I, the first electron acceptor is :

In a moss, the sporophyte-

Pentamerous, actinomorphic flowers, bicarpellary ovary with oblique septa, and fruit a capsule or berry, are characteristic features of:

An enzyme that can stimulate germination of barley seeds is:

Which one of the following is not included under in situ conservation?

In a cereal grain the single cotyledon of embryo is represented by-

During photorespiration, the oxygen consuming reaction(s) occur in:

How does pruning help in making the hedge dense ?

Which one of the following is the correctly matched pair of an endangered animal and a National Park?

Prothallus is

Which of the following pairs of an animal and a plant represents endangered organisms in India?

Parthenocarpic tomato fruits can be produced by:

Which of the following is considered a hot-spot of biodiversity in India?

How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 Kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 Kcal ?

What type of placentation is seen in sweet pea?