Which nucleobase is incorrectly paired with its classification in the text?
2
During DNA replication, which strand is synthesized continuously?
3
What is the primary chemical difference between ribose and deoxyribose?
4
Which enzyme is responsible for removing RNA primers during lagging strand synthesis?
lightbulb
Explanation
<p>La risposta corretta è <strong>Exonuclease</strong> perché è l'enzima che taglia via i primer di RNA, lasciando una piccola scissione che poi viene colmata da DNA ligasi; le altre opzioni non hanno questa funzione di rimozione dei primer. Immagina di tagliare una piccola linguetta di nastro adesivo (RNA) con una forbice (exonucleasi) prima di incollare i due pezzi di nastro (DNA) insieme.</p>
<p><em>Vuoi un trucco visivo per ricordare l'enzima, un esempio pratico o una frase mnemonica?</em></p>
5
In eukaryotic genes, which region is added to the 5' end of the primary transcript?
6
Which type of hydrogen bonding occurs between adenine and thymine in DNA?
7
What role does topoisomerase play during DNA replication?
8
Which statement best describes the orientation of the two DNA strands in the double helix?
9
During transcription, what is the function of the TATA box?
10
Which RNA type directly carries amino acids to the ribosome during translation?
11
Which of the following best explains why DNA has a negative charge?
12
What is the main purpose of introns being removed during splicing?
13
Which enzyme synthesizes the RNA primer required for DNA polymerase activity on the lagging strand?
14
Which of the following correctly describes the relationship between enhancers and transcription factors?
15
During transcription elongation, which nucleotide is added to the 3' end of the growing RNA chain?
16
Which statement accurately reflects the semi‑conservative nature of DNA replication?
17
What is the functional consequence of having a higher number of hydrogen bonds in C‑G base pairs compared to A‑T pairs?
18
Which of the following best describes the role of the 3' UTR in mature mRNA?
19
During RNA polymerase termination, what signals the enzyme to release the newly synthesized RNA?
20
Which enzyme is primarily responsible for relieving supercoils ahead of the replication fork?
21
What distinguishes a nucleoside from a nucleotide according to the text?
0%
Score
0
Correct
0
Incorrect
Want to go further?
Create a free account and generate unlimited quizzes from your own study material.
