Test Corrections
When bonded together chemically, deoxyribose, phosphate, and an adenine molecule make up
A) a DNA nucleotide
B) an RNA nucleotide
C) a DNA molecule
D) an RNA molecule

A) a DNA nucleotide

Explanation: Nucleotides are the building blocks of nucleic acids. RNA and DNA are the two types of nucleic acids. An RNA has a ribose sugar, hence the name ribonucleic acid but a DNA has a deoxyribose sugar hence the name deoxyribonucleic acid. A DNA nucleotide is made of three molecules, a deoxyribose sugar, a nitrogenous base and a phosphate group. The nitrogenous bases found in DNA are Adenine, Thymine, Cytosine and Guanine. An RNA nucleotide is made up of three molecules, a ribose sugar, a nitrogenous base and a phosphate group. The nitrogenous bases found in RNA are Adenine, Uracil, Guanine and Cytosine.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: