List two characteristics of the garden pea plant, Pisum sativum, that make it an ideal organism for genetic experiments
What will be an ideal response?
It can be self-fertilized or cross-fertilized; it is easy to grow and cultivate; each pea is a different fertilization event; many characteristics have only two phenotypes–dominant or recessive; true-breeding plants are available; it's an annual plant; it's diploid and sexual (unlike many plants).
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Why would a diet containing unsaturated fats that form triglycerides be better for an athlete when considering energy levels and health?
A. Unsaturated fats are packed closer together, making them higher in energy storage levels and fluid within the body. B. Saturated fats have double bonds, making them harder to break down for energy release and creating artery clogging structures. C. Saturated fats are packed closer together, making their breakdown for energy release less efficient and forming unnecessary fat deposits. D. Unsaturated fats have a linear structure, making them easy to break down and releasing high amounts of energy when glucose levels are low.
An aerobic cellular process requires carbon dioxide.
a. true b. false
Macromolecules that are used by all organisms to store hereditary information are called:
A. ribosomal RNAÂ molecules. B. transfer RNA molecules. C. messenger RNA molecules. D. DNA molecules. E. proteins.
Which of the following supports the idea that all organisms share a common ancestry?
A) All cells have a similar biochemistry, including amino acids, nucleic acids, and ATP. B) All cells use the same collection of lipids. C) All cells use amino acids as a carrier of genetic information. D) All cells use DNA as a cellular energy carrier. E) All cells use ATP as the template for protein synthesis.