What is the maximum number of amino acids that could result from the following mRNA sequence?...

What is the maximum number of amino acids that could result from the following mRNA sequence?

5′ AUGAGACCGUCG 3′

A. 0

B. 4

C. 7

D. 10

Solutions

Expert Solution

The maximum number of amino acids that could result from the sequence of mRNA 5' AUGAGACCGUCG 3' is

4 (Option B)

Codons are the genetic codes,represented by sequence of three nitrogenous babses in nucleic acids. Each codon ( thee nitogenous bases) codes for one aminoacid. After transcription the codons in mRNA is responsible for the sequence of aminoacids in the proteins during traslation. AUG is always the start codon which codes for methionine. Protein traslation continues according to the codon sequence in the mRNA from 5' to 3' till a stop codons is encountered . Stop codons include UAG, UGA, UAA which donot have a corresponding amino acid. This terminates the protein translation. In the given mRNA sequence 5' AUGAGACCGUGC 3', grouping the nitrogenous bases in threes starting from 5' end , we obtain four codons - AUG, AGA, CCG and UGC. These codons code for four amino acids- Methionine, Arginine, Proline and Serine respectively.

The option A (0) is wrong because the sequence starts with AUG a start codon so traslation will progress. The other options , C (7) is wrong beause for 7 amino acids, 7 x 3 = 21 bases are required. We are given only 12 bases. Option D) 10 would require 10 x 3 = 30 nitrogenous bases, which is not the case in the given sequence. (we are multiplying by three beacuse for each amino acid there has to be one codon and each codon comprises of three nitrogenous bases). Hence the answer is option B , 4.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

Ribosomes provide the scaffolding on which tRNAs interact with mRNA during translation of an mRNA sequence to a chain of amino acids.

Part A -tRNA interactions with mRNA and the ribosome Ribosomes provide the scaffolding on which tRNAs interact with mRNA during translation of an mRNA sequence to a chain of amino acids. A ribosome has three binding sites, each of which has a distinct function in the tRNA-mRNA interactions. Drag the appropriate tRNAs to the binding sites on the ribosome to show the configuration immediately before new peptide bond forms. Note that one of the binding sites should be left empty.

DNA strand mRNA tRNA from Figure 2 Amino Acids (number and name) from Figure 3 pg...

DNA strand mRNA tRNA from Figure 2 Amino Acids (number and name) from Figure 3 pg 80 C C T G G A C C U 4 Glycine G A A G G T A C G T T A G T T G A C A T G A C G

5. How could you take a protein with a known sequence of amino acids and use...

5. How could you take a protein with a known sequence of amino acids and use it to make an artificial gene?

The following mRNA fragment is responsible for coding exactly three amino acids, the 33rd, 34th, and...

The following mRNA fragment is responsible for coding exactly three amino acids, the 33rd, 34th, and 35th ones of a polypeptide that is made of 60 amino acids. The base sequence in this fragment is: ...AUGACUGAAUAA… Use the genetic code to name the amino acids in the order of addition to the growing polypeptide chain.

If a polypeptide is composed of 319 amino acids, how many nucleotides were in the mRNA...

If a polypeptide is composed of 319 amino acids, how many nucleotides were in the mRNA transcript for the polypeptide? Show your work (math).

Two of the facts which differentiate lipids and carbohydrates from amino acids are that, amino acids...

Two of the facts which differentiate lipids and carbohydrates from amino acids are that, amino acids can neither be stored nor excreted. true false A baby got sick a few weeks after birth and test results show that the baby had higher than normal levels of the amino acid phenylalanine. Which of the following best describes the baby's probable diagnosis? The baby has maple syrup disease The baby has PKU More lab test are needed to confirm the cause malady...

1) How many amino acids long is the protein with the following sequence? 5’ tctaaaatgtcagatgtaaagtgcacatcagtagtcttactctcagttttgtaacaactc 3’...

1) How many amino acids long is the protein with the following sequence? 5’ tctaaaatgtcagatgtaaagtgcacatcagtagtcttactctcagttttgtaacaactc 3’ 3’ agattttacagtctacatttcacgtgtagtcatcagaatgagagtcaaaacattgttgag 5’ 2) Design a set of 6 base pair long primers that scientists could use to amplify the entire sequence of the gene in Q1 3) T/F. A base pair substitution (ie. a point mutation) that introduces a nonsense mutation could be introduced to the sequence encoding the protein in Q1.

What is an amino acid? How many amino acids are there?

1.How do D -amino acids differ from L-amino acids? What biological roles are played by peptides...

1.How do D -amino acids differ from L-amino acids? What biological roles are played by peptides that contain D -amino acids? 2.Which amino acid is technically not an amino acid? Which amino acid contains no chiral carbon atoms? 3.For each of the following, name an amino acid in which the R group contains it: a hydroxyl group, a sulfur atom, a second chiral carbon atom, an amino group, an amide group, an acid group, an aromatic ring, and a branched...

Can the exact same sequence of amino acids fold into different tertiary structures?

Subjects