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Micronutrients

Biotechnologi...

Question

Biotechnologically synthesized vitamin B₁₂ is used to cure______.

A

pernicious anaemia

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B

aplastic anaemia

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C

haemolytic anaemia

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D

sickle cell anaemia

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Solution

The correct option is A
pernicious anaemia

Anaemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. There are many types of anaemia. Pernicious anaemia is a decrease in red blood cells that occurs when the intestines cannot properly absorb vitamin B₁₂.

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Q. Choose the correct option with respect to the X, Y and Z.

\begin{matrix} X Photophobia Scaly skin \end{matrix} \begin{matrix} Y Dermatitis Diarrhoea \end{matrix} \begin{matrix} Z Nausea Vomiting \end{matrix}

Q. Compare vitamin (Part I) with its deficiency disease (Part II)

Part I	Part II
A. Vitamin - $B_{12}$	1.Sterility
B. Vitamin - $B_{6}$	2. Haemorrhagic condition
C. Vitamin - $E$	3. Pernicious anaemia
D. Vitamin - $K$	4. Skin disease

Q. Match the vitamins given in column I with the deficiency diseases caused by it given in column II and mark the appropriate choice.

Column I	Column II
(A) Vitamin $B_{1}$	(i) Convulsions
(B) Vitamin $B_{2}$	(ii) Pernicious anaemia
(C) Vitamin $B_{12}$	(iii) Beri beri
(D) Vitamin $B_{6}$	(iv) Cheilosis

Q. Deficiency of which vitamin causes the disease pernicious anaemia?

B_{12}

is synthesized by

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