1

### AIPMT 2010 Prelims

Which one of the following does not exhibit the phenomenon of mutaroation?
A
(+) Sucrose
B
(+) Lactose
C
(+) Maltose
D
($-$) Fructose

## Explanation

Sucrose does not show mutarotation.

Only those sugars which have a free aldehyde or ketone group are capable of showing mutarotation.
2

### AIPMT 2009

Which of the following hormones contains iodine?
A
Testosterone
B
C
Thyroxine
D
Insulin

## Explanation

Thyroxine contains iodine
3

### AIPMT 2009

The segment of DNA which acts as the instrumental manual for the synthesis of the protein is
A
ribose
B
gene
C
nucleoside
D
nucleotide

## Explanation

The DNA sequence that codes for a specific protein is called a Gene and thus every protein in a cell has a corrosponding gene.
4

### AIPMT 2008

Which of the following is an amine hormone?
A
Insulin
B
Progesterone
C
Thyroxine
D
Oxypurin

## Explanation

Thyroxine is an amino hormone.