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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025 | Verified A+ Graded. Test Questions With Correct Answers Graded A+ | 2025/2026|

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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025 | Verified A+ Graded. Test Questions With Correct Answers Graded A+ | 2025/2026|

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BISC 261 Exam Questions and answers with complete solutions Latest Updated 2025 |
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when and who observed the change of nonvirulent organisms into virulent ones via "transformation" -
✔️✔️griffith 1928



who showed that the transforming principle was dna - ✔️✔️avery, MacLeod and McCarty in 1944



dna and rna are linked together by - ✔️✔️phosphodiester bonds



contains bases adenine guanine cytosine and uracil, sugar is ribose, most are single stranded some
double - ✔️✔️rna



a complex process involving numerous proteins which help ensure accuracy, two strands separate each
serving as a template - ✔️✔️dna replication



dna in most bacteria is - ✔️✔️circular



replication fork - ✔️✔️where dna is unwound



replicon - ✔️✔️portion of the genome that contains an origin that is replicated as a unit



dna polymerase III holoenzyme - ✔️✔️complex of 3 core enzymes and several other protiens



helicases - ✔️✔️unwind DNA strands



single stranded DNA binding proteins (SSB) - ✔️✔️keep strands apart for replication to occur



topoisomerases - ✔️✔️relieve tension from rapid unwinding of double helix, prevents supercoiling

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