1.distinguish between the starting sequences, ending sequences, and enzymes used
ID: 9561 • Letter: 1
Question
1.distinguish between the starting sequences, ending sequences, and enzymes used to initiate, polymerize, and terminate replication, transcription and translation2.explain how the Central dogma of molecular genetics illustrates how hereditary Genotype becomes hereditary Phenotype in an organism ( 3 processes involved in Heredity and " Gene Expression").
3.Describe 6 properties of DNA structure and DNA replication that are essential to its successful synthesis, stability, and function.
4.Distinguish the carbon and energy sources for all of the trophisms: chemo-, photo-, hetero-, auto-,and combination of each.
Explanation / Answer
Starting sequnces Ending sequences Enzymes Replication It starts with complimentary sequence of primer used Ends at some specific sequence, decided by DNA polymerase DNA polymerases, ligases, topoisomerases, helicases and SSB proteins Transcription Starts at adenine residue Ends with interaction of rho protein RNA polymerase, transcription factors Translation Starts at AUG Ends at UAA, UAG, UGA. Ribosomes, translation factors. 2. Based on central dogma of molecular genetics, hereditary genotype becomes hereditary phenotype in an organism by the following three processes. Replication of DNA --------> Transcription into mRNA -------> Translation to proteins 3. Properties of DNA structure - - Double helix - sense and antisense strands are present - base pairing is seen - super coiling to accomodate less space - A, B, Z conformations - major and minor grooves are present Properties of DNA replication - - template strand is parental strand - daughter strands produced parental strand - semi conservative mode of replication - DNA polymerase is the key enzyme - nucleotides are seen - enzymes like ligase, helicase and topoisomerase plays role 4. Chemotrophs - obtain energy by the oxidation of electron donors in their environment. Phototrophs - utilize solar energy Heterotrophs - It cannot fix carbon and depend on the organic carbons for growth Autotrophs - Can fix their own carbon compounds through process of photosynthesis. Combination of each will result in organisms like photoautotrophs and they are combined characters of phototrophs and autotrophs. Starting sequnces Ending sequences Enzymes Replication It starts with complimentary sequence of primer used Ends at some specific sequence, decided by DNA polymerase DNA polymerases, ligases, topoisomerases, helicases and SSB proteins Transcription Starts at adenine residue Ends with interaction of rho protein RNA polymerase, transcription factors Translation Starts at AUG Ends at UAA, UAG, UGA. Ribosomes, translation factors.Related Questions
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