Q: 5 (SSC/0)
question_subject:
Science
question_exam:
SSC
stats:
0,10,9,10,2,3,4
keywords:
{'pentose': [1, 0, 0, 0], 'sugar': [0, 0, 0, 1], 'dna': [3, 1, 1, 2], 'xylulose': [1, 0, 0, 0], 'heptulose': [1, 0, 0, 0], 'hexose': [1, 0, 0, 0]}
The sugar present in DNA is a pentose. Pentose refers to a five-carbon sugar, and in the case of DNA, the specific pentose sugar is deoxyribose. This sugar molecule is an essential component of DNA`s structure. Deoxyribose sugar is bonded to phosphate and forms the backbone of the DNA molecule, connecting the nucleotides together. It serves as a stable scaffold for the genetic information stored in the sequence of nucleotide bases. The other options mentioned, such as xylulose, hexose, and heptulose, are not the sugars found in DNA. Xylulose is a five-carbon sugar but is not part of DNA. Hexose refers to a six-carbon sugar, while heptulose refers to a seven-carbon sugar. Therefore, option 1 - pentose is the correct answer.