Question

test name: biology, unit 2, practice

1. the diagram below shows three repeating units of a polymer.

polymer
which of the following molecular structures make up the repeating units shown in the diagram?
a. fatty acid
b. nucleotide
c. amino acid
d. monosaccharide

1. which group of macromolecules is responsible for transmitting genetic information to new cells?

a. lipids
b. proteins
c. nucleic acids
d. carbohydrates

Explanation:

1. The repeating unit shown in the diagram has a sugar - phosphate backbone and a nitrogenous base, which are characteristic features of a nucleotide. Nucleotides are the building blocks of nucleic acids.
2. Nucleic acids (such as DNA and RNA) are responsible for transmitting genetic information to new cells. DNA contains the genetic instructions for the development, functioning, growth and reproduction of all known living organisms and many viruses.

Answer:

1. C. nucleotide
2. C. nucleic acids