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DNA Information to Protein Structures

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Questions and Answers

Which scientist first provided evidence that DNA is the inheritance factor?

Phage researchers

Erwin Chargaff

Frederick Griffith

Oswald Avery (correct)

What type of molecule was proven to enter bacterial cells during viral infection?

Protein

Carbohydrate

DNA (correct)

RNA

Which scientist investigated the composition of DNA in 1947?

Phage researchers

Frederick Griffith

Erwin Chargaff (correct)

Oswald Avery

What type of change does transformation refer to?

A change in genotype and phenotype Signup and view all the answers

Which component of bacteria did Avery find to be crucial for transformation when destroyed?

DNA Signup and view all the answers

What was known about DNA in 1947?

DNA was known to be a polymer of nucleotides Signup and view all the answers

What is the structure of DNA according to the Watson-Crick model?

Sugar-phosphate backbone with the strands running anti-parallel to each other Signup and view all the answers

What type of model is DNA replication according to the Watson-Crick model?

Semi-conservative Signup and view all the answers

What are the enzymes that carry out the elongation process during DNA replication called?

DNA polymerases Signup and view all the answers

What is the role of the Y-shaped replication forks in the replication bubble?

They are the sites where the new strands are being elongated Signup and view all the answers

What type of primer is used to start the replication process?

RNA primer Signup and view all the answers

What is the length of the Okazaki fragments in the lagging strand?

100-200 nucleotides Signup and view all the answers