Synthesis of DNA and RNA Crossword Puzzle

QUESTIONS LIST:

• leading strand: the dna strand that is synthesized continuously in the direction of the replication fork's movement.
• okazaki: the short, discontinuous segments of dna (approximately 1,000-2,000 nucleotides) synthesized on the lagging strand during dna replication.
• proofreading: the critical function performed by enzymes like dna polymerase i, involving the correction of errors during dna replication to maintain genetic accuracy.
• intron: non-coding regions within a gene that are transcribed into mrna but subsequently removed during rna splicing in eukaryotic cells.
• hairpin: a structure found at the 3' end of a newly synthesized rna strand (mostly g and c bases, followed by u bases) that causes rna polymerase to stop and helps the rna detach from the dna template during termination without rho-protein.
• polyatail: a sequence of 200-300 adenine (a) bases added to the 3' end of eukaryotic mrna, acting as protection against degradation during transport to the cytoplasm.
• helicase: the enzyme that catalyzes the unwinding and separation of the two dna strands at the replication fork.
• splicing: the process of removing non-coding intron regions from rna and joining the coding exon regions together to form mature rna.
• ligase: the enzyme that catalyzes the formation of phosphodiester bonds to join dna fragments, such as two adjacent okazaki fragments, together.