Question

DNA molecules store genetic information and allow for self-replicating life. Molecules of DNA can be long and very complex. They always consist of smaller molecules that are made up of nitrogenous bases, phosphate groups, and 5-carbon sugars.

DNA is an example of a complex _______.

 A. 

carbohydrate polymer

 B. 

inorganic molecule

 C. 

organic molecule

 D. 

protein structure

​

Answer 1

DNA is a complex organic molecule that stores and transmits genetic information. It consists of nucleotides with a phosphate group, a five-carbon sugar, and a nitrogenous base, forming the genetic code.

Step-by-step explanation:

DNA, or deoxyribonucleic acid, is an example of a complex organic molecule. Consisting of long chains of nucleotides, DNA stores and transmits hereditary information vital for life processes. Each nucleotide is composed of a five-carbon sugar called deoxyribose, a phosphate group, and one of four different nitrogenous bases. The structure of DNA is characterized by its iconic double helix, with two strands running in opposite directions and connected by hydrogen bonds between complementary nitrogenous bases.

In DNA, the information for synthesizing proteins is encoded, which determines an organism's traits. This genetic information is conserved through evolution and passed from parents to offspring, ensuring the continuity of life. The sequence of nitrogenous bases in DNA forms the genetic code, which is used during transcription and translation to build proteins, following the 'Central Dogma of Life': DNA -> RNA -> protein.

Answer 2

The correct option is C.

Step-by-step explanation:

DNA means deoxyribonucleic acid. DNA is a complex organic molecule because two of his constituents (the nitrogenous bases and the 5-carbon sugars) are organic compounds. Since these organic compounds form the basis of a DNA structure, then DNA can be said to be organic. These constituents are said to be organic because of the presence of carbon, hydrogen and the functional groups present in there structure.