Synthesis of protein is controlled by:a)Nucleotideb)RNAc)DNAd)NucleosideCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

In this way, a genetic code in the DNA can be used to synthesize a protein at a distant location at the ribosome. The synthesis ofmRNA, tRNA, and rRNA is accomplished by an enzyme called RNA polymerase. Transcription. Transcription is one of the first processes in the overall process ofprotein synthesis.

Answer

Control by r-RNA

Answer

I don't think so.. because the message for the synthesis of a particular protein is present in DNA... so answer will be DNA..protein synthesis by RNA but controlled by DNA (pg: no-422, last lines. of chemistry class 12.part 2.)

Answer

RNA contains r-RNA which is also called ribosomal RNA. Ribosomes are factories of protein synthesis.

Answer

T-RNA reads m-RNA and make proteins and then r-RNA control the synthesis of protein

Answer

Introduction:
Protein synthesis is the process by which cells build proteins. It is a complex and highly regulated process that occurs in all living organisms. The synthesis of proteins is controlled by various molecules, including nucleotides, RNA, DNA, and nucleosides. However, the primary control over protein synthesis is exerted by RNA.

RNA and Protein Synthesis:
RNA, or ribonucleic acid, plays a central role in protein synthesis. There are three major types of RNA involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

- mRNA: mRNA carries the genetic information from DNA to the ribosomes, the cellular machinery where protein synthesis occurs. It is synthesized through a process called transcription, during which a complementary mRNA molecule is produced based on the DNA template. mRNA contains a series of codons, each coding for a specific amino acid.

- tRNA: tRNA molecules are responsible for carrying the amino acids to the ribosomes. Each tRNA molecule has a specific anticodon sequence that is complementary to the codon on the mRNA. The anticodon ensures that the correct amino acid is added to the growing protein chain.

- rRNA: rRNA makes up the structure of ribosomes and provides the site for protein synthesis. Ribosomes consist of two subunits, one large and one small, which are composed of rRNA and proteins.

Steps of Protein Synthesis:
Protein synthesis occurs in two main steps: transcription and translation.

1. Transcription:
Transcription is the process by which the DNA sequence is transcribed into mRNA. It takes place in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells. During transcription, the DNA double helix unwinds, and an RNA molecule is synthesized based on the DNA template. This RNA molecule is the mRNA that carries the genetic information to the ribosomes.

2. Translation:
Translation is the process by which the mRNA sequence is translated into a protein. It occurs in the ribosomes and involves the participation of tRNA and rRNA. During translation, the ribosome reads the codons on the mRNA and matches them with the appropriate tRNA molecules carrying the corresponding amino acids. The amino acids are then joined together to form a polypeptide chain, which folds into a functional protein.

Conclusion:
In conclusion, the synthesis of proteins is controlled by various molecules, but the primary control is exerted by RNA. RNA molecules, including mRNA, tRNA, and rRNA, play crucial roles in protein synthesis. mRNA carries the genetic information from DNA to the ribosomes, tRNA carries amino acids to the ribosomes, and rRNA forms the structure of ribosomes. Through the processes of transcription and translation, RNA molecules ensure the accurate synthesis of proteins in cells.

Answer

T rna, and m rna & r rna carry out this process but it is controlled by DNA

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