List of top Biology Questions

$DNA$ is a polymer of nucleotides which are linked to each other by $3'-5'$ phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?

$DNA$ cannot pass through a cell membrane as

Diuresis is a condition characterized by

Discontinuous synthesis of $DNA$ occurs in one strand, because

Diseases are broadly grouped into infectious and noninfectious diseases. In the list given below, identify the infectious diseases. (i) Cancer (ii) Influenza (iii) Allergy (iv) Small pox

Diplotene stage of prophase-$I$ is characterised by

Diploblastic and triploblastic are terms that describe

Digestion of proteins begins in the and digestion of polysaccharides begins in the

Different cells have different sizes. Arrange the following cells in an ascending order of their size and select the correct option (i) Mycoplasma (ii) Ostrich egg (iii) Human $RBCs$ (iv) Bacteria

Different biomes are formed due to annual variations in ____ over the earth's surface.

Diatomaceous earth is used for all except

Development of an egg without fertilization is called

Detritus food chain in comparison to grazing food chain is

Deposition of calcareous shell around zygote occurs in

Delivery of developed fetus is scientifically called

Decompound leaves are

Decomposers like fungi and bacteria are (i) autotrophs (ii) heterotrophs (iii) saprotrophs (iv) chemo-autotrophs. Choose the correct answer.

Dark reaction in photosynthesis is called so because

Dachigam Wildlife Sanctuary in Kashmir is associated with

Dark band of a sarcomere is anisotropic or doubly refractive because of the presence of

Cuticle is absent in

Cyanobacteria are classified under which of the following kingdoms?

Curdled milk formed in stomach contains precipitated protein

Crossing over in diploid organisms is responsible for

Crescograph was invented by