BSC 101 Exam 2 Questions And Answers Rated A+ New Update Assured Satisfaction

Describe DNA structure - Answer-DNA forms a double stranded helix and adenine pairs with thymine, and cytosine pairs with guanine What pair forms hydrogen bonds and how many - Answer-thymine/adenine form 2 bonds guanine/cytosine form 3 bonds Explain "the central dogma" - Answer-DNA turning into RNA turning into Protein What is transcription - Answer-Copying of DNA code to RNA, one nucleotide at a time so it is complementary to the DNA What is translation - Answer-RNA gets translated into protein Universal genetic code regarding evolutionary theory and biotechnology - Answer-Universal = all living organisms ever discovered use the same code - this shows every organisms use the exact same genetic code - (more evidence all life shares a common evolutionary ancestor) = evolutionary theory Biotechnology = if the genes didn't share the same genetic code you can't take one gene and place it in another - it limits the use Process of Gene expression - Answer-Different cells in different genes can express differently - genes can be turned on and off and if it is off proteins can't be produced The process of turning on a gene to produce RNA and protein Just because a cell has a particular gene does not mean it is transcribed into RNA and then transcribed into protein For a cell to function properly they correct proteins must be synthesized at the proper time Each cell only expresses those genes that make it function as that particular cell type that it isWhat are the biotech tools - Answer-- DNA Extraction - Gel Electrophoresis - PCR - Molecular cloning - Reproductive cloning