Home
Class 12
BIOLOGY
Read the statement and find the correct...

Read the statement and find the correct ones
1. IgE antibodies are produced in an allergic reaction
2. B-lymphocytes mediate cell mediated immunity
3. The yellow fluid colostrum has abundant IgE antibodies
4. spleen is a secondary lymphoid organ

A

I only is correct

B

ii and iii are correct

C

I and ii are correct

D

I and iv are correct

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the statements. (i) IgE antibodies are produced in an allergic reaction. (ii) B-lymphocytes mediate immunity. (iii) The yellowish fluid colostrum has abundant IgE antibodies. (iv) Spleen is a secondary lymphoid organ. Of the above statements:

Read the following statements and select the right option : I. The spleen is a large bean-shaped organ, which mainly contains lymphocytes and phagocytic cells. II. The principal of vaccination is based on the property of memory of the immune system. III. The graft rejected or failure of organ transplantation is due to cell-mediated immunity . IV. The yellowish fluid colostrum has an abundant amount of lgA antibodies which provide active immunity to newborn babies.

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 statements carefully ( A - D ) : A . Thymosin hormone helps T -lymphocytes to provide cell-mediated immunity . B. Calcitonin ormone increases blood calcium level and is hypercalcemic. C. Melanin hormones from the pineal gland, regulate the 24 hours (diurnal ) rhythm cycle. D. Epinephrine and norepinephrine hormones are called catacholamines. How many statements /s from above is /are correct ?

Read the following statements and find out the incorrect statements. a. Ovules generally differentiate single megaspore mother cell (MMC) in the chalazal region of the nucellus. b. The MMC undergoes reduction division and produces four megaspores. c. In a majority of angiosperms, one of the megaspore is degenerated while the other three remains functional. d. The nucleus of the functional megaspore divides mitotically three times and form 2-nucleate, 4-nucleate and later 8-nucleate stages of the embryo sac. e. These mitotic division are strictly free nuclear, that is, nuclear division are immediately follwed by cell wall formation.

Which of the following statements are correct? I. IgM is the first immunoglobulin produced in a primary response to an antigen. II. IgD protects the body fluids and also stimulates phagocytes and complement system. III. IgE acts as mediation in allergic response. IV. IgE protects from inhaled and ingested pathogens thus, protects the body surface. Codes

Read the following matches and mark the correct option : I. Antigen binding site on antibody : contains a variable region of a heavy chain only II. Humoral immunity: due to antibodes, secreated by plasma cell III. Graft rejecation: due to cell-mediated immunity response IV. Colostrum : provides active immunty to infacts or newborns.