D(+) glucose yields an oxime with hydroxyl amine. The structure of the oxime would be:

1. 2.
3. 4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
 78%
From NCERT
AIPMT - 2014
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In DNA, the linkages between different nitrogenous bases are:

1. Phosphate linkage
2. H-bonding
3. Glycosidic linkage
4. Peptide linkage
Subtopic:   DNA, RNA & Metal Ions |
 71%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
Please attempt this question first.

The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled A-D. Which one of the following options is correct?

 
1. D is the acidic amino acid - glutamic acid
2. C is an aromatic amino acid - tryptophan
3. A is the C-terminal amino acid and D is N terminal amino acid
4. A is the sulphur containing amino acid-methionine

 
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 52%
NEET - 2013
Please attempt this question first.
Hints

Which of the following best illustrates FEEDBACK in development?
 
1. Tissue (X) secretes RNA which changes the development of tissue (Y)
2. As tissue (X) develops, it secretes enzymes that inhibit the development of tissue (Y)
3. As tissue (X) develops, it secretes something that induces tissue (Y) to develop
4. As tissues (X) develops, it secretes something that shows down the growth of tissue (Y)

 
Subtopic:  Vitamins, Hormones & Enzymes |
NEET - 2013
Please attempt this question first.
Hints

 The disease caused by deficiency of vitamin B1 is:

1. Convulsions 2. Beri-beri
3. Cheilosis 4. Sterility
Subtopic:  Vitamins, Hormones & Enzymes |
 92%
From NCERT
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Sucrose can be formed by:
1. α–D–galactopyranose and α–D–glucopyranose
2. α–D–glucopyranose and β–D–fructofuranose
3. β–D–galactopyranose and α–D–fructofuranose
4. α–D–galactopyranose and β–D–fructopyranose

Subtopic:  Carbohydrates - Classification & D-L configuration |
 87%
From NCERT
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following statements is not true regarding (+) lactose?

1. (+) lactose is a  β -glycoside and a molecule of D(+) galactose
2. (+) lactose is a reducing sugar and does not exhibit mutarotation
3. (+) lactose,  C 12 H 22 O 11  contains 8-0 H groups
4. On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose

Subtopic:  Carbohydrates - Classification & D-L configuration | Polysaccharides & their Importance |
 50%
AIPMT - 2011
Please attempt this question first.
Hints

Which of the following is not a fat-soluble vitamin?

1. Vitamin A 

2. Vitamin B complex

3. Vitamin D 

4. Vitamin E

Subtopic:  Vitamins, Hormones & Enzymes |
 93%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The correct statements regarding "Denaturation" are:

(a) Denaturation of proteins causes the loss of secondary and tertiary structures of the protein. 
(b) Denaturation leads to the conversion of a double strand of DNA into a single strand.
(c) Denaturation affects the primary structure which gets distorted.


1. (a), (b) and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)

Subtopic:  Denaturation of Proteins & Chemical Properties |
 83%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following does not exhibit the phenomenon of mutarotation?

1. (+) Sucrose

2. (+) Lactose

3. (+) Maltose=

4. (-) Fructose

Subtopic:  Carbohydrates - Classification & D-L configuration |
 60%
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints