Acquired immune deficiency syndrome $(AIDS)$ is characterized by:
- AKiller $T$-cells
- BReduction in number of helper $T$-cells
- CAn autoimmune disease
- DInability of body to produce interferons
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Similar Questions
Which is correct about saccharin?
Medium
View SolutionThe correct match between item $I$ and item $II$ is
Item $I$ (compound) Item $II$ (reagent) $(a)$ Lysine $(p)$ $1$-naphthol $(b)$ Furfural $(q)$ Ninhydrin $(c)$ Benzyl alcohol $(r)$ $KMnO_4$ $(d)$ Styrene $(s)$ Ceric ammonium nitrate
| Item $I$ (compound) | Item $II$ (reagent) |
| $(a)$ Lysine | $(p)$ $1$-naphthol |
| $(b)$ Furfural | $(q)$ Ninhydrin |
| $(c)$ Benzyl alcohol | $(r)$ $KMnO_4$ |
| $(d)$ Styrene | $(s)$ Ceric ammonium nitrate |
Assertion : $Mg$ is not present in the enamel of human teeth.
Reason : $Mg$ is an essential element for the biological functions of humans.
Reason : $Mg$ is an essential element for the biological functions of humans.
DifficultAIIMS 2004
View SolutionMatch Column-$I$ with Column-$II$ and select the correct option.
Column-$I$ Column-$II$ $(i)$ Antiberiberi factor $(A)$ Vitamin $C$ $(ii)$ Pancreas $(B)$ Glycerides $(iii)$ Palm oil $(C)$ Vitamin $B_1$ $(iv)$ $L(+)$-Ascorbic acid $(D)$ Insulin
| Column-$I$ | Column-$II$ |
| $(i)$ Antiberiberi factor | $(A)$ Vitamin $C$ |
| $(ii)$ Pancreas | $(B)$ Glycerides |
| $(iii)$ Palm oil | $(C)$ Vitamin $B_1$ |
| $(iv)$ $L(+)$-Ascorbic acid | $(D)$ Insulin |
Medium
View SolutionWhich of the following represents a nucleoside?
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