Home
Class 12
BIOLOGY
Read the statements (A - E) and answer t...

Read the statements (A - E) and answer the question following them.
A - Rheumatoid arthritis is an auto-immune disease.
B - During allergy, IgA type antibodies increases in plasma.
C- Injection given to patients of snakebite, possess antibiotics.
D- Humoral immunity is because of B-cells.
E- Interferons are an example of a cytokine barrier.
Identify the number of true statements?

A

One

B

Two

C

Three

D

Four

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the following statements (A - E) and answer the question following them . A. Cancer and AIDS, both are incurable diseases. B. Ionizing radiations like UV rays causes DNA damage and may cause cancer. C. Cocaine is also known as crack. D. Adolescence period is between 12-18 years of age. E. CO (Carbon monoxide) content in the blood increases on smoking. How many of the above statement are correct ?

Read the following statements ( A – E ) and answer the question that follows them: A. Thyrocalcitonin is a hypocalcaemic hormone . B. Isthmus in the thyroid is a thin flat of connective tissue . C. The ovulation from the Graafian follicles is mediated by LH. D. The source of FSH and TSH is the same. E. Hormones are non-nutrient chemicals. How many of the above statement are incorrect ?

Read the statement and choose the correct option (I) Secretion of interferons is a physiological barrier of innate immunity II. T-lymphocytes are responsible for cell mediated immunity III. Injection given against snake venom is a type of active immunisation IV. Antibodies produced during allergic reactions are of IgA type

Read the following five statements (A -E ) and answer the question. A. Pollination by water is more common amongst abiotic pollinating agent. B . Pollination by water is quite rare in flowering plants. C . Water hyacinth and water lily. The flowers emerge above the level of water and are pollinated by water. D. Wind pollinated plants numerous flowers packed into an inflorescence. E. Self incompatibility is an outbreeding device which prevents inbreeding . How many of the above statement are correct ?

Read the following statement (A-E) and answer the equestion which follows them (A) In liverworts, mosses and fems fametophytes are free living (B) Gymnospers and some ferms are heterosphorous (C) Sexual reproduction if Fucus, Volvox and Allbugo is oogamous (D) The sporophyte in liverworts is more elaborate than that in mosses (E) Both, Pinus and Marchantia are dioecious How many of the above statements are correct

Read the statement and choose the correct option I. Secretion of interferons is a physiological barrier of innate immunity II. T-lymphocytes are responsible for cell mediated immunity III. Injection given against snake venom is a type of active immunisation IV. Antibodies produced during allergic reactions are of IgA type (a) i and ii are correct (b) ii and iv alone are correct (c) iii alone is correct (d) ii alone is correct

Read the following five statements (A-E) and answer as asked next to them (A) In Equisetum the female gametophyte is retained on the parent sporophte (B) In ginkgo male gametophyte is not independent (C) Sexual reproduction in Volvox is isogamous (D)The sporophyte in Riccia is more developed than that in polytrichum (E) The spores of slime moulds lack cell walls How many of the above statements are correct

Note the following A) SCID B) Grave's disease C) Rheumatoid arthritis D) Alzheimer's disease E) Myasthenia gravis F) Addison's disease G) Parkinson's disease Which of the above are auto immune disorders

Read the given four statements and choose the correct option. a. An alien DNA is linked with the "ori" for multiplication b. Normal E.coli cells do not carry antibiotic resistant genes for tetracycline and ampicilin c. Salmonella typhimurium carry gene for resistance against antibiotic d. An antibiotic resistance gene can be used as a selectable marker or cloning site

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'