Experts,please tell Explain this questions in detail and the answer.
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Answer 177. Option 4 is correct.
The enzyme that combines with non- protien part(Cofactor) is Apoenzyme. Functional enzyme formed is known as Holoenzyme.
Enzyme is composed of two part
1. protien part called Apo enzyme
2. non protien part - co-factor or coenzyme
Answer 177. Option 4 is correct.
The enzyme that combines with non- protien part(Cofactor) is Apoenzyme. Functional enzyme formed is known as Holoenzyme.
Enzyme is composed of two part
1. protien part called Apo enzyme
2. non protien part - co-factor or coenzyme
Complete enzyme is known as Holoenzyme
Holo enzyme = Apoenzyme + co-factor/ co enzyme.
Answer 239. Option 1 is correct.
B-form DNA is a right-handed double helix, which was discovered by Watson and Crick based on the X-ray diffraction patterns. The double strands of B-DNA run in opposite directions.
Salient features of the Watson and Crick model:
Answer 239. Option 1 is correct.
B-form DNA is a right-handed double helix, which was discovered by Watson and Crick based on the X-ray diffraction patterns. The double strands of B-DNA run in opposite directions.
Salient features of the Watson and Crick model:
1. DNA is a double helix. In the helix, two polynucleotide chains are anti-parallel (one is to , and the other is to)
Backbone of the helix is formed by the sugar−phosphate−sugar chain; while bases project inwards, perpendicular to the bacbackbon.
2. A binds to T; 2 hydrogen bonds occur between them.
2. A binds to T; 2 hydrogen bonds occur between them.
G binds to C; 3 hydrogen bonds occur between them.
3. One full turn of the helical strand involves 10 bases, and at each step, the strand turns by 36°.
4. Rise per base pair − 3.4A°
5. Pitch per base pair − 34A°
A-DNA is a right-handed double helix made up of deoxyribonucleotides. The two strands of A-DNA are anti-parallel with each other and not symmetrical.
Z-form DNA is a left-handed double helix. It has a very different structure when compared with A-DNA and B-DNA. The zigzag appearance of backbone allows it to be distinguished from other forms of DNA.
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