Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?
Correct answer: C. Endonuclease
- A. Lipase
- B. Protease
- C. Endonuclease
- D. Exonuclease
Explanation
The answer is endonuclease. Endonucleases are enzymes that hydrolyze internal phosphodiester bonds in a polynucleotide chain. They are used in many different cellular processes, such as DNA replication, DNA repair, and gene expression.The other options are incorrect because :Lipase hydrolyzes triglycerides into fatty acids and glycerol.Protease hydrolyzes proteins into peptides and amino acids.Exonuclease hydrolyzes phosphodiester bonds at the ends of a polynucleotide chain.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chromosomes questions
Which one of the following makes use of an RNA template to synthesize DNA?
Protein synthesis in an animal cell occurs:
Amino acid sequences are decided by the sequence of _ during protein synthesis:
During transcription, holoenzyme RNA polymerase binds to a DNA sequence, and the DNA assumes a saddle-like structure at that point. What is that sequence called?
After a mutation at a genetic locus, the character of an organism changes due to a change in:
Which form of RNA has a structure resembling the clover leaf?