bio 20 exam 2 study guide with comprehensive questions and answers.

The process of copying DNA into RNA - correct answer transcription Process of converting an RNA sequence into an amino acid sequence - correct answer Translation Tanning beds are: - correct answer highly carcinogenic Author's purpose for WWGS - correct answer it applied natural selection and other ultimate (evolutionary) perspectives to understand why we are imperfect Generally true of caffeine - correct answer The reason that all of the cells within a body are not indentical and the primary reason for most of the differences between individuals within a population is differences in _____ among cells - correct answer gene expression Why we have evolved thumbs? - correct answer because human ancestors who had thumbs left more offspring than those without thumbs Based on evolutionary theory, the number of siblings you should be willing to die for is at least? - correct answer 2 Why does taking steroids to make more muscle also result in smaller testes? - correct answer Homeostasis. The body responds to too much steroid by reducing the tissue that makes testosterone. In your body, bacterial cells outnumber your own - correct answer True Why are alcohol and tobacco legal, recreational drugs? - correct answer They have long been part of our culture What is the central paradox exposed by WWGS? - correct answer We possess intricate adaptations yet still suffer from crude problems In Lewis Carroll's "Through the Looking-Glass, the Red Queen tells Alice, "in this place it takes all the running you can do to stay in the same place." How is this connected with the idea of evolution by natural selection? - correct answer As population adapt to their enemies, their enemies counter adapt in turn Which are true of diets or dieting? - correct answer High protein work, calories burned must exceed calories consumed, consistent exercise, most of those you pay for are ways to waste money. Insoluble fiber refers to? - correct answer Cellulose best source of protein and healthiest choice? - correct answer Rice and beans Which is true of alcohol? - correct answer Lighter colored alcohol fewer toxic contaminants, reduce damage by drinking ater, hangovers are sensation of being poisoned. What is true of cancer cells? - correct answer cancer cells have no contact inhibition How did Lemmings film jumping into water during spring snowmelts? - correct answer someone with a broom pushed them in Why did circulatory systems evolve? - correct answer The surface area to volume ratio decreases as organism size increases Which is not true of ethanol? - correct answer It causes bodily harm because it is an acid ATGTGGTCATATGGCACA - correct answer substitution What does BMI control for? - correct answer Height Why do we cook meat? - correct answer increase nutritional quality & denature the protein of infectious microbes & animals on/inside of the meat Which is NOT true regarding teratogens and morning sickness? - correct answer slowly metabolizing tissues were more vulnerable to toxins than active ones What is NOT true of enzymes? - correct answer enzymes are destroyed when they participate in a chemical reaction On planet Claire codons consist of a sequences of 2 bases. This means? - correct answer 16 amino acids and or stop codons Serotonin available to the brain is? - correct answer increased indirectly by carohydrates enviornment to phenotype as: - correct answer recipe is to cookie Protein NOT found in the human body - correct answer cholesterol Relationship between respiration and photosynthesis? - correct answer photosynthesis stores energy in complex organic molecules, while respiration releases it Most addictive drug? - correct answer Caffeine A mutation in a somatic cell is definitely - correct answer NOT heritable Which is NOT true of BRCA genes? - correct answer Individuals with mutations have increased risk of hepatitis Your friend normally gets a buzz from 2 shots of alcohol. The ED divided by LD is 0.1 What is the number of shots that are life threatening? - correct answer 20 What is a consequence of being homozygous for a mutation that makes the gene for enzyme C non-functional? - correct answer This is called a "null" mutation and will result in "compensatory expression" of gene c