Question

Which of the following characteristics are DNA specific characteristics?
a) sugar is missing an oxygen
b) double stranded
c) found only in the nucleus
d) features the bases G,T,A and C

Answer 1

Answer:

a, b, and d

Explanation:

The correct options would be options a, b, and d.

The DNA is primarily made up of 3 components, namely:

• Deoxyribose pentose sugar: a sugar that is missing an oxygen, and hence, the prefix 'deoxy'.
• Phosphate group.
• Purine and pyrimidine bases. The purine bases include Adenine (A) and Guanine (G), while the pyrimidine bases include Cytosine (C) and Thymine (T)

The DNA consists of two strands that are linked together through a hydrogen bond. They are usually found primarily in the nucleus and organelles like mitochondrion and chloroplast of eukaryotic organisms. However, due to the absence of nucleus in prokaryotic organisms, DNA is found within the cytoplasm.

Hence, the correct properties of DNA according to the question are:

• sugar is missing an oxygen
• double stranded
• features the bases G, T, A, and C