BIOL 142 Study Guide - Comprehensive Final Exam Guide - Dna, Chromosome, Mutation
20 Nov 2018
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Dna polymerase is made and is cycled between 3 temperature steps: denaturation: heating the mixture to 950c separates the two strands of. Dna: primer annealing: cooling the mixture to 550c and primers attach to the. Second messengers: molecules that relay signals received at receptors on the cell surface- relay signals to target molecules in cytosol and/or nucleus- serve to amplify strength of signal- ex: cyclic amp, cyclic gmp, and calcium ions. Meiosis: write down a definition of mitosis. Why do cells do it: mitosis is the division of a parent cell into two identical diploid daughter cells. Dna- single transfer can result in the cotransformation of several genes simultaneously- extracellular dna can be unstable- nucleases can break it up- one enzyme separates two. Dna strands- only single strand can participate in transformation (pairs homologously with host cell dna)- surviving dna strand aligns with complementary region of the bacterial chromosome- recombinase will facilitate swapping of blue dna and orange.
