Biology Test-11...

Photosensitive receptors in plants that sense blue light are called ___________.

Which organelle acts as a pressure vessel?

Which of the following techniques is used to transfer early embryo into the fallopian tube?

The most common substrate used in distilleries for the production of ethanol is:

One of the very first steps of taxonomy is:

The mass of living material at a trophic level at a particular time is called:

\(F_{2}\) generation in a Mendelian cross showed that both genotypic and phenotypic ratio are same as \(1: 2: 1\). It represents a case of:

Which of the following terms imply 'the human impact on the environment'?

Select the correct sequence of steps in DNA fingerprinting involving southern blot hybridization using VNTR.

i. Hybridization using labelled VNTR probe

ii. Isolation of DNA

iii. Transferring (blotting) of DNA fragments to synthetic membranes, such as nitrocellulose or nylon

iv. Detection of hybridized DNA fragments by autoradiograph

v. Separation of DNA fragments by electrophoresis

vi. Digestion of DNA by restriction endonucleases

In water-logged soil, plants do not grow properly because:

Four long and two short stamens are found in:

Which of the following element is needed for insulin to exert its maximal effect in glucose uptake?

Middle lamella is mainly composed of:

A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out are quite yellowish. The yellow colour of stool is due to:

Which one of the following microorganisms is used for the production of citric acid in industries?