Question
Which of the following statements about antibodies is
correct?Solution
(2) Correct β Antibodies are highly specific to the antigens they bind to, helping the immune system neutralize pathogens.Β (1) Antibodies are produced by B-cells, not T-cells. B-cells differentiate into plasma cells, which then secrete antibodies. (3) While B-cells are formed in the bone marrow, antibody production mainly occurs after their differentiation into plasma cells. (4) Antibodies do not function as enzymes in metabolic reactions; they mainly neutralize pathogens and mark them for destruction.
A bag contains certain number of coins of different denominations. The ratio of the number of Rs. 1 coins to Rs. 2 coins is 4 : 5, respectively and the...
The ratio of investment of A and B is 2 : 5 and that of B and C is 3 : 7. Find the investment of B if sum of investment of A, B and C is Rs. 33600.
In a clothing store, the ratio of shirts to trousers to T-shirts is 2:6:5. After Y trousers are sold, the ratio of shirts to trousers changes to 4:9. Th...
A starts a business with Rs. 5650. After 8 months, B joins with A as his partner. After one year the profit is divided in the ratio 5:8. What is B&rsquo...
In a store, there is an inventory of 4,800 caps. Black caps constitute 41(2/3) % of this total, with the rest being blue caps. The caps that have been s...
Three numbers βAβ, βBβ and βCβ are such that βAβ is half of βBβ and βCβ is equal to average of βAβ and βBβ. If sum of th...
If 'A' = (2/5) of 'B', 'B' = (3/4) of 'C', then find the value of (A + B) :(B + C) .
Adarsh rented a travel bike for a mountain tour. If the bike is rented for 8 hours or less, the charge is Rs. 100 per hour or Rs. 8 per km, whichever is...
The ratio between the number of books and pencils is 7:5 and the ratio of cost of per book and pencil is 3:2 then find the percentage by which total cos...
Determine the mean proportion of 40 and 19.6