Three-letter segments of mRNA code for specific(1 point)
Responses
amino acids.
disorders.
sickle cells.
chromosomes.
Segments of mRNA code for specific amino acids.
The three-letter segments of mRNA code for specific amino acids.
To determine which three-letter segments of mRNA code for specific responses like amino acids, disorders, sickle cells, or chromosomes, we need to understand the process of protein synthesis and the genetic code.
The genetic information stored in DNA is transcribed into mRNA, which carries the code to the ribosomes in the cell. In this code, every three-letter sequence of mRNA is called a codon, and each codon represents a specific amino acid or a signal for start or stop during protein synthesis.
Here's how you can find the three-letter segments of mRNA that code for specific responses:
1. Amino acids: The genetic code is universal, meaning the same codons usually code for the same amino acids in most organisms. You can refer to a genetic code table or use online resources to find the codons that correspond to specific amino acids. For example, the codon GCA codes for the amino acid Alanine.
2. Disorders: Certain genetic disorders are caused by specific mutations or variations in DNA sequences. To identify the mRNA codons associated with specific disorders, you need to study the specific genetic mutations underlying those disorders. Research papers, genetic databases, and genetic testing companies might provide information on the specific genetic mutations causing certain disorders.
3. Sickle cells: Sickle cell disease is caused by a specific mutation in the hemoglobin gene. This mutation results in a single nucleotide change in the DNA sequence, which leads to a change in the mRNA codon. In the case of sickle cell anemia, the codon that changes is GAG (glutamate) to GUG (valine).
4. Chromosomes: mRNAs are transcribed from DNA, and chromosomes contain DNA sequences. While specific three-letter segments of mRNA do not directly code for chromosomes, understanding the DNA sequence and its transcription into mRNA can help determine the gene or genetic information carried on a particular chromosome.
In summary, understanding the genetic code, DNA sequences, and mutations associated with specific responses like amino acids, disorders, sickle cells, or chromosomes will enable you to identify the corresponding three-letter segments of mRNA.