RNAi takes place in all eukaryotic organisms as a method of

The capacity to generate a whole plant from any cell/explant is known as:

Which of the following structures have 3n (triploid) number of chromosomes?

Select incorrect statements in reference to decomposition.
A. Decomposition rate is slower, if detritus is rich in nitrogen
B. Decomposition is largely an oxygen requiring process
C. Decomposition rate is faster if detritus is rich in lignin and chitin
D. Warm and moist environment favours decomposition
Choose the correct answer from the options given below:

Match List I with List II.

LIST I	LIST II
A. Artificial insemination	I. Infertility
B. Chromosomal disorder	II. Assisted Reproductive Technologies
C. Gonorrhoea	III. Amniocentesis
D. Inability to produce children	IV. Sexually transmitted infections

Choose the correct answer from the options given below:

Match List-I with List-II

List-I (Contraceptive methods)	List-II (Respective actions)
(A) Diaphragms	(I) Inhibit ovulation and implantation
(B) Contraceptive pills	(II) Increase phagocytosis of sperm within uterus
(C) Intra Uterine Devices	(III) Absence of menstrual cycle and ovulation following parturition
(D) Lactational amenorrhea	(IV) They cover the cervix blocking the entry of sperms

Choose the correct answer from the options given below:

Who popularised the term 'Biodiversity' that intends to describe the combined diversity at all the levels of biological organisation?

Antibodies are secreted by:

Statins produced by the yeast variety is _______ which have been commercialised as blood-cholesterol lowering agents.

Arrange the given taxa of invertebrates in terms of their increasing numbers.
(A) Other animal groups
(B) Molluscs
(C) Insects
(D) Crustaceans
Choose the correct answer from the options given below:

The brain size of Neanderthal man was :

The equation of the normal to the curve \(y=2 \sin x\) at \((0,0)\) is:

Read the passage carefully and answer the given questions.
Recombinant DNA Technology
Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
What is the purpose of using a gene promoter in recombinant DNA technology?