Identify the incorrect statement
(A) Retroviruses convert common cells to cancerous cells
(B) P BR322 is a natural plasmid
(C) T-DNA present in Ti plasmid
(D) T-DNA transform normal plant cells into tumor

Choose incorrect statement w.r.t mesophyll cells of C_4 -plants

The part of Ti (tumour inducing) plasmid transferred into plant cell DNA is called :

Which of the following statement is incorrect w.r.t. natural killer cells?

Select the wrong statement (a) Presence of chromogenic substrate gives blue color colonies if the plasmid in the bacteria does not have an insert (b) Retroviruses in animals have the ability to transform normal cells into cancerous cells (c) In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA (d) Since DNA is a hydrophilic molecule it cannot pass through cell membranes

Pick up the correct statement : (a) Mitosis occurs in somatic cells and meiosis in germ cells (b) DNA replicates once in mitosis and twice in meiosis (c) Mitosis and meiosis occur both in sexually and asexually reproducing organisms.

Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. (a) DNA is negatively charged molecule and so it is loaded on gel towards the Anode terminal (b) DNA fragments travel along the surface of the gel whose concentration does not affect movement of DNA. (c) Smaller the size of DNA fragment larger is the distance it travels through it. (d) Pure DNA can be visualized directly by exposing UV radiation. Choose correct answer from the options given below

Read the following statement and find out the incorrect statement. (a). Asexual reproduction is common among single-celled organisms, and in plants and animals with relatively complex organisations. (b) In yeast, the division is unequal and small buds are produced that remain attached initially to the parent cell which eventually gets separated and mature into yeast organism (cells). (c). vegetative reproduction is also a type of asexual reproduction. (d) While in animals and other simple organisms the term vegetative reproduction is used unambiguously, in plants the term asexual reproduction is frequently used. (e) Water hyacinth is also called 'Terror of Bengal'

Mitochondria are related to (a) Prokaryotic cells (b) Plasmids (c) Prion (d) Virus

Which of the following statements are true? If false, correct them: (a) Boron deficiency leads to stout axis. (b) Every mineral element that is present in a cell is needed by the cell. (c) Nitrogen as a nutrient element, is highly immobile in the plants. (d) It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities.

Microinjection is a method used in genetic engineering for (a) DNA fingerprinting (b) transformation of animal cells (c) transformation of plant cells (d) transformation of bacteria