BIO 340 Varsani Test 3 Questions And Answers
With Verified Solutions Graded A+ Latest Update
2025.
To serve as genetic material, molecule must be able to... - ANSWER Replicate
Store information
Express information
Allow variation by mutation
Three major types of macromolecules... - ANSWER -Deoxyribonucleic acid (DNA)
--storage molecule for genetic instructions to carry out metabolism and reproduction
-Ribonucleic acid (RNA)
--derived from DNA, expresses the info in DNA
-Proteins and enzymes
--functional entitites that build cellular structures and do cellular work
Transforming principle - ANSWER A single gene mutation change can covert a smooth strain
to rough strain of same antigenic type
-Frederick Griffith
"Change one's ability to pathogenic"
Demonstrated transforming principle was DNA
Central dogma - ANSWER DNA-->RNA-->protein
, -DNA is a template for RNA synthesis (transcription)
-RNA is template for proteins synthesis (translation)
-it is conserved in all cellular forms of life
DNA info is replicated by replication and is passed on to the next gerneration
Transcription - ANSWER Yields a ribonucleic acid (RNA) copy of specific genes
Translation - ANSWER uses info in messenger RNA (mRNA) to synthesize a polypeptide)
Only mRNA is transcribed
Nucleotides - ANSWER made of
-a phosphate group
-a sugar (deoxyribose or ribose)
-nitrogenous base (purines and pyrimidines)
RNA has ribose, DNA has deoxyribose
Purine vs Pyrimidine Ring - ANSWER PyCUT
PuGA
Nucleoside - ANSWER -nitrogenous base
-pentose sugar
-purine or pyrimidine base
-ribose or deoxy sugar
Nucleotide - ANSWER -Nucleoside with phosphate group added
Triphosphates - ANSWER -Serve as precursor molecule during nucleic acid synthesis
ATP and GTP (large amount of energy involved in adding/removing terminal phosphate group
(as you add more phosphate groups, they become more active)
With Verified Solutions Graded A+ Latest Update
2025.
To serve as genetic material, molecule must be able to... - ANSWER Replicate
Store information
Express information
Allow variation by mutation
Three major types of macromolecules... - ANSWER -Deoxyribonucleic acid (DNA)
--storage molecule for genetic instructions to carry out metabolism and reproduction
-Ribonucleic acid (RNA)
--derived from DNA, expresses the info in DNA
-Proteins and enzymes
--functional entitites that build cellular structures and do cellular work
Transforming principle - ANSWER A single gene mutation change can covert a smooth strain
to rough strain of same antigenic type
-Frederick Griffith
"Change one's ability to pathogenic"
Demonstrated transforming principle was DNA
Central dogma - ANSWER DNA-->RNA-->protein
, -DNA is a template for RNA synthesis (transcription)
-RNA is template for proteins synthesis (translation)
-it is conserved in all cellular forms of life
DNA info is replicated by replication and is passed on to the next gerneration
Transcription - ANSWER Yields a ribonucleic acid (RNA) copy of specific genes
Translation - ANSWER uses info in messenger RNA (mRNA) to synthesize a polypeptide)
Only mRNA is transcribed
Nucleotides - ANSWER made of
-a phosphate group
-a sugar (deoxyribose or ribose)
-nitrogenous base (purines and pyrimidines)
RNA has ribose, DNA has deoxyribose
Purine vs Pyrimidine Ring - ANSWER PyCUT
PuGA
Nucleoside - ANSWER -nitrogenous base
-pentose sugar
-purine or pyrimidine base
-ribose or deoxy sugar
Nucleotide - ANSWER -Nucleoside with phosphate group added
Triphosphates - ANSWER -Serve as precursor molecule during nucleic acid synthesis
ATP and GTP (large amount of energy involved in adding/removing terminal phosphate group
(as you add more phosphate groups, they become more active)
