GregoryWeader
Answered

Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

A certain gene in a bacterium codes for a polypeptide that is 120 amino acids long. How many nucleotides are needed in the mRNA to code for this polypeptide?
A. 30
B. 40
C. 360
D. 480

Sagot :

The answer is C. 360.

3 nucleotides correspond to 1 amino acid (this is an important fact to remember). Therefore, to create a polypeptide 120 amino acids long, the mRNA "message" would need to be 3 times that length, or 360 nucleotides.
luisvaschetto

If one gene codes a polypeptide containing 120 amino acids long, then 360 nucleotides will be needed in the mRNA to code for this polypeptide (Option C).

  • During gene transcription, a specific sequence of DNA called 'gene' is used as a template to create a messenger RNA (mRNA).

  • Subsequently, this mRNA is then used to create a protein via the process of translation.

  • The triplets of nucleotides or 'codons' of this mRNA will specify the linear order of amino acids that are added to the growing polypeptide during translation.

  • In consequence, each amino acid is determined by three sequential nucleotides (i.e., a codon), thereby 120 amino acids are determined by 360 nucleotides (120 x 3 = 360 nucleotides).

In conclusion, if one gene codes a polypeptide containing 120 amino acids long, then 360 nucleotides will be needed in the mRNA to code for this polypeptide (Option C).

Learn more in:

https://brainly.com/question/725664

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.