which best describes a gene? 1. the short arm of a a chromosome 2. tightly coiled strands of DNA 3. the center of a chromosome 4. a segment of chromosomal DNA

What two fields of study provide the core information that is used to classify organisms?

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

What's the waste product of electrons and pyruvate combining in fermentation?