Question

Which of the following is a characteristic of DNA?a) Genetic information is stored and passed down from one generation to the nextb) it is a single-stranded molecule made up of nucleotidesc) it is secondary source of heritable informationd) the information is contained in the amino acids that make up the DNA molecule

Answer 1

DNA

DNA is where all the genetic information of an organism is present.

DNA is a double-stranded molecule composed of nitrogenous bases and is the main place where genetic information is contained.

During the reproduction of a species when the gametes are fertilized, the male's DNA will unite with the female's DNA.

Analyzing the alternatives:

• a) correct!

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• b) incorrect, the structure of DNA is a double helix.

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• c) incorrect, is the main source of genetic information.

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• d) incorrect, amino acids are formed from the reading of DNA by mRNA. These are the nitrogenous bases that are contained in the DNA molecule.

Alternative "A" is correct!