Genetic Code Answers

Katie wants to make ball-and-stick models of the four macromolecules. She has colored balls for each of the elements in these molecules, including the following. red: hydrogen black: carbon purple: oxygen green: nitrogenIn which macromolecule will she use the black, red, and purple balls in a ratio of 1:2:1?

For which form of reproduction is a mate required?

Which statement best describes the relationship between proteins and nucleic acids?

The organic compound below consists of an adenine molecule (blue), a ribose (purple), and three phosphate groups (orange).Which compound is shown?

Which statement best describes the molecular structure of protein, along with one of the functions of proteins?

Mitosis is divided into phases.Which phase of mitosis is shown in the diagram?

The chemical equation of photosynthesis includes 6O2. Which best describes this substance?

Under certain external conditions, a person will perspire a great deal. For which internal condition does this response primarily provide homeostasis?

The first strands of DNA were observed through which microscope?

Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next?

Why are algae and ferns both green?

Which characteristic of life best describes the life cycle of a frog?

How were Redi’s and Pasteur’s experiments different?

Look at the levels of carbon dioxide in the data table below.Carbon in the AtmosphereWhat quantity of carbon dioxide was in the atmosphere in 1980?

How many homologous chromosome alignments are possible for independent assortment during meiosis?

Which compound is produced during carbon fixation?

Which organisms are prokaryotes?

A zygote consists of how many cells?

Which substance is a compound?