Describe helicase separation of the strands and the general role of DNA polymerase in building complementary DNA.
Tę umiejętność sprawdza 6 zadań wzorowanych na arkuszach IB z lat 2022–2026.
The schematic shows a DNA replication fork. What does helicase do at this fork? A. Separates paired strands by disrupting hydrogen bonds between bases B. Forms peptide bonds between neighbouring nucleotides C. Adds phosphate groups to every amino acid D. Makes…
Which bond changes are associated with DNA replication? A. Both enzymes form peptide bonds B. Polymerase forms phosphodiester links; helicase disrupts base-pair hydrogen bonding C. Polymerase forms base-pair hydrogen bonds; helicase breaks the sugar backbone…
What does DNA polymerase do while a DNA molecule is copied? A. It joins DNA nucleotides into the new complementary strand B. It replaces every base in the unchanged template with an amino acid C. It joins amino acids on a ribosome D. It converts the parental…
Which pairing correctly matches each polymerase to its principal process? A. RNA polymerase: transcription; DNA polymerase: DNA replication B. RNA polymerase: peptide assembly; DNA polymerase: transcription C. RNA polymerase: translation; DNA polymerase: DNA…
(a) Outline the events of mitosis in their normal sequence. (b) Describe processes taking place in the nucleus of a eukaryotic cell during interphase, the period between nuclear divisions.
At a DNA replication fork, what is the role of helicase? A. Joining adjacent amino acids into a protein B. Adding new nucleotides to the growing daughter strand C. Separating the parental strands by disrupting base-pair hydrogen bonds D. Making an RNA copy of…
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