List of top Biology Questions

The sequence that controls the copy number of the linked DNA in the vector, is termed :

Montreal protocol was signed in 1987 for control of:

The size of Pleuropneumonia - like Organism (PPLO) is :

The first phase of translation is:

If the distance between two consecutive base pairs is 0.34nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately:

Meiotic division of the secondary oocyte is complete

Match the following columns and select the correct option.

The process of growth is maximum during :

Identify the wrong statement with reference to the gene T that controls ABO blood groups.

Select the correct match

The roots that originate from the base of the stem are:

Which of the following is not an attribute of a population ?

In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?

The infectious stage of Plasmodium that enters the human body is

Match the following columns and select the correct option.

Identify the floral unit 'I' in the given floral diagram.

Observe the following simplified scheme and choose the correct option that matches with the letters given in the boxes.

Match the following classes of Fungi (Column-I) with the examples (Column-II).

Column-I		Column-II
1	Phycomycetes	p	Penicillium
2	Ascomycetes.	q	Alternaria
3	Basidiomycetes	r	Albugo
4	Deuteromycetes	s	Puccinia

Choose the correct options :

According to Supreme Court of India, ruling with respect to 'Bharat Stage VI' Norms, from which date, these are supposed to be implemented in the country?

Which one of the following is a wrong statement?

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

The organisms which invade a bare area to initiate an ecological succession are known as

Identify the possible link 'M' in the following food chain:
Plant → Insect → M → Snake → Eagle

The shape of the pyramids reflects the growth status of the population. Identify the type of age pyramid represented below for human population.

In the following equation of Verhulst - Pearl logistic growth, the letter 'r denotes _______
$\frac{dN}{dt}=rN(\frac{K-N}{K})$