Which is a true statement about codons?

Which of the following is a true statement about codons? In translation, an mRNA codon is recognized by its complementary tRNA. Every trait you see on an organism is a result of that organism’s DNA instructing the organism’s cells.

What is a codon quizlet?

Codon. a three base mRNA sequence that codes for ONE amino acid. The term is also used for a DNA bases triplet on the non-template strand. As codons are triplets of bases, the number of nucleotides that make up the genetic message must be three times the number of amino acids specified in the protein. mRNA.

What is the function of a codon?

codon, in genetics, any of 64 different sequences of three adjacent nucleotides in DNA that either encodes information for the production of a specific amino acid or serves as a stop signal to terminate translation (protein synthesis).

What is the true statement for the genetic code?

The only true statement about the genetic code in this question is C. The genetic code is redundant, with multiple codons specifying a single amino acid. For instance, the amino acid glutamic acid, for example, is coded by the codons GAG and GAA; the amino acid leucine is coded by six different codons.

What are codons found on?

A codon is a specific sequence of nucleotides on an mRNA that corresponds to a specific amino acid or to a stop signal during protein translation. A nucleotide, in turn, is made up of a nucleobase (or simply, base), a sugar, and a phosphate group.

What is the role of codon in translation quizlet?

The start codon (AUG) marks the beginning of a protein and where translation needs to begin; The stop codons (UGA, UAA, and, UAG) mark the end of the protein and where translation needs to end.

What is true about the genetic code quizlet?

The genetic code the is the sequence of base triplets (codons) in mRNA that code for a specific amino acid. … The genetic code is non-overlapping because, each codon is read in a sequence, separate from the codon before it and after it. Codons do not share their bases, therefore the code is non-overlapping.

Which is not true about genetic code?

Hence, Option (b) i.e. A codon in mRNA is read in a non-contiguous fashion is the correct answer as it is not a true statement for genetic code. Note: Each codon is made of three nitrogenous bases, do not overlap other codons and are independent. Codons in mRNA are read in continuous or contiguous fashion.

What are codons how many codons are there?

64 different codonsThe cell reads the sequence of the gene in groups of three bases. There are 64 different codons: 61 specify amino acids while the remaining three are used as stop signals.

Which of the following is A correct statement about mRNA?

Which of the following is a correct statement about mRNA? mRNA moves from the nucleus to the cytoplasm following RNA processing. mRNA undergoes RNA processing in the nucleus and then moves to the cytoplasm for translation. ribosomes in the cell cytoplasm.

Which statement is true about DNA replication in prokaryotes but not about replication in eukaryotes?

Translation is the process of protein synthesis, which occurs on ribosomes free in the cytosol (or on ribosomes embedded in the rough endoplasmic reticulum in eukaryotes). The only true statement is that prokaryotic DNA replication is faster than eukaryotic DNA replication.

Which statement concerning ribosomes is true?

The ribosomes have three binding sites for the tRNA: the A, C, and E sites. Protein synthesis may occur in either the endoplasmic reticulum or in the cytoplasm but regardless of location, ribosomes will always be utilized for this process. Therefore, the answer is E. All of the above statements are true.

Which of the following is an incorrect statement about mRNA?

Which of the following is an incorrect statement about m-RNA? Explanation: Introns are removed and exons are ligated. … Explanation: t-RNA identifies amino acids and transports them to ribosomes.

Which statement accurately describes DNA methylation?

Which statement accurately describes DNA methylation? Methyl groups are most often added to cytosines adjacent to guanine bases in or near the promoter sequence, decreasing the probability of gene expression.

What would happen if the mRNA codon that codes for Cys?

What would happen if the mRNA codon that coded for Cys was mutated in the third position from a U to an A? … The codon would now code for Trp instead of Cys. The amino acid Cys would still be coded.

Which of the following statement about RNA polymerase are correct?

Solution: [d] RNA pol I transcribes rRNAs, whereas the RNA pol III is responsible for transcription of tRNA, 5srRNA and snRNAs. RNA pol II transcribes hnRNA.

Which of the following is true about RNA synthesis?

Which of the following is true of RNA synthesis (transcription)?…Prokaryotic transcriptionEukaryotic transcription(b)Occurs in the cytoplasmOccurs in the nucleus(c)A single RNA polymerase synthesises all the three types of RNAThe RNA polymerase I, II and III synthesise rRNA, mRNA and tRNA respectively

Which one of the following is an incorrect statement for tRNA molecule?

“Select the incorrect statement about tRNA.” tRNA possess an amino acid acceptor at 3′ end for binding of amino acids. tRNA is also called soluble RNA. tRNA posses an anticodon loop that has bases complementary to the code….Question : Select the incorrect statement about tRNA.QuestionSelect the incorrect statement about tRNA.Question Video Duration1m57s•Sep 26, 2020