List of top Biology Questions

Phototrophs and chemotrophs are defined on the basis of their

A 'transcription unit' in DNA is defined primarily by the (i) promoter (ii) structural genes (iii) Okazaki fragments (iv) adenylate residues (v) terminator

Which of the following hormones is a derivative of fatty acid?

Which valve is present at the opening of coronary sinus?

Which codon is not an indicator of completion of protein synthesis ?

The partial floral formula of a flower is $K_{\left(5\right)} C_{5}A_{\left(\infty\right)} \frac{G_{5}}{ }$ Which f the following set of information is conveyed here?

The objective of �Ramsar Convention� was

The covering of lungs is called

The correct sequence of organelles in which glycolate and glyoxylate are produced sequentially in photorespiration, is

The concept of Hot-Spot was first introduced by

Intermediate host of malarial parasite is

Immunity that develops in the fetus after receiving antibodies from mother�s blood through placenta is

Edible part of apple and pear is

Cleistogamous flowers are

Insect pest resistant Bt-cotton plant was developed using

Pseudopodia are produced by

Formation of polysome does not require

Which of the following tissues provide maximum mechanical support to plant organs ?

Which of the followings is always ABSENT in prokaryotic cells ?

Select the CORRECT statement related to mitosis

Chlorophyll molecules are located in the

The primary cell wall is mainly made up of

Which of the following types of $RNA$ act as adapter molecule

Which part of the plant contains sporogenous tissue?

Who gave semi-conservative mode of DNA replication for the first time in E.coli with the help of $15 \,N$ heavy nitrogen isotope?