True or False
Determine which five of the following statements are false, and briefly explain why.
- Proteins destined to be exported from a cell are made by ribosomes on the surface of the Golgi complex.
- Each of a cell's products—such as steroids, carbohydrates, and phospholipids—is encoded by a separate gene.
- A molecule of RNA would weigh about half as much as a segment of DNA of the same length.
- Each amino acid of a protein is represented by a three-base sequence in DNA.
- From the end of the S phase until anaphase, a chromosome has two chromatids.
- The law of complementary base pairing describes the way the bases in an mRNA codon pair up with the bases of a tRNA anticodon during translation.
- Most of the DNA in a human cell does not code for any proteins.
- Some mutations are harmless.
- Males have only one sex chromosome whereas females have two.
- A gene can be transcribed by only one RNA polymerase at a time.
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.
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