WSU Bio 102 Questions And Answers With Complete Solutions

WSU Bio 102 Questions And Answers With Complete Solutions How does BPA cause cancer? ️️ it disrupts meiosis and mitosis causing breast and prostate cancer. 3 and 7 plastics may contain BPA What is a genetic fingerprint? how do you make one? ️️ -Genetic Fingerprint: DNA uses the differences in base sequences to identify individuals. -DNA fingerprinting involves 3 tools: 1. PCR to get large amounts of DNA 2. Restriction digest with blunt ends to fragment the DNA with precision 3. Gel electrophoresis to separate and visualize the DNA fragments Genetic engineering - how can you insert a gene into a new cell? ️️ -Genetic engineering is the permanent introduction of one or more genes into a cell, tissue, or organism. 1) Use PCR to isolate Gene 2) Cut the plasmid DNA with restriction enzymes (using a staggered cut) 3) The ends of the cut have an overhanging piece of single stranded DNA 4) The "sticky ends" will base pair with the DNA containing complementary sticky ends. 5) Use heat shock to get the genetically engineered plasmid into the cell. How are scientists using genetic engineering to create plants that make vaccines? ️️ -They identify and synthesize a single viral gene that codes for the virus Three steps for inserting gene into new cell. ️️ 1. Transcription (copy the code into mRNA) 2. mRNA Splicing (remove non-coding sequences) 3. Translation (translate the language of the nucleic acids into the language of the amino acids). Which plant is close to being approved by the FDA to make flu vaccines? ️️ Tobacco What is the mode of action for each of the different birth control methods (how do they work)? ️️ intrauterine device - most effect, t-shaped device w/ hormones condoms - the worst