What happens if a mutation alters the amino acid sequence of the corresponding protein?

-the shape of the protein is change, changing its function More test answers on https://studyhippo.com/chapter-10-mutations-and-cancer/

Which of the following would occur from a mutation in the gene’s promoter region? The sequence of the mature mRNA would change. The ability of pre-mRNA to be properly spliced would change. The ability of mRNA to be translationally regulated would change. The amino acid sequence of the translated protein would be altered. The rate of transcription may increase or decrease.

The rate of transcription may increase or decrease. More test answers on https://studyhippo.com/chapter-14-mutation-dna-repair-and-cancer/

What would result from a single nucleotide deletion (point mutation) within the coding sequence of a structural gene? a silent point mutation with no deleterious effects a missense point mutation resulting in the change of one amino acid a nonsense point mutation resulting in the generation of a premature stop codon a frameshift mutation, producing a different amino acid sequence altogether All of the choices are possible.

a frameshift mutation, producing a different amino acid sequence altogether More test answers on https://studyhippo.com/chapter-14-mutation-dna-repair-and-cancer/

Enzymes that catalyze the same reaction but differ in amino acid sequence are called

isozymes. Correct. The muscle and heart forms of lactate dehydrogenase are examples of isozymes. More test answers on https://studyhippo.com/module-4-practice-quizzes-and-module-quiz-ch-16-17-18-19-20-21/

What amino acid sequence does the following DNA nucleotide sequence specify? 3′−TACAGAACGGTA−5′ Express the sequence of amino acids using the three-letter abbreviations, separated by hyphens (e.g., Met-Ser-His-Lys-Gly).

Met-Ser-Cys-His More test answers on https://studyhippo.com/biology-test-v-ch-14-40/

During translation, nucleotide base triplets (codons) in mRNA are read in sequence in the 5′ → 3′ direction along the mRNA. Amino acids are specified by the string of codons. What amino acid sequence does the following mRNA nucleotide sequence specify? 5′−AUGGCAAGAAAA−3′ Express the sequence of amino acids using the three-letter abbreviations, separated by hyphens (e.g., Met-Ser-Thr-Lys-Gly).

Met-Ala-Arg-Lys More test answers on https://studyhippo.com/biology-test-v-ch-14-40/

tRNA molecules work to _____. A. transcribe DNA to mRNA B. translate DNA to produce a specific amino acid sequence C. transcribe the amino acid sequence to DNA D. translate mRNA to produce a specific amino acid sequence E. none of the above

D. translate mRNA to produce a specific amino acid sequence More test answers on https://studyhippo.com/essay-bio/

5. What is denaturation? A. A structural change of a protein that results in the loss of its biological properties B. A change in the genetic code of an organism C. A change in the amino acid sequence of a protein causing a disruption of its 3D shape D. The process by which amino acids are broken down and ammonia is released

A. A structural change of a protein that results in the loss of its biological properties More test answers on https://studyhippo.com/ib-biology-paper-1-fletcher-topic-2-molecular-biology/

The base sequence of the gene coding for a short polypeptide is CTACGCTAGGCGATTGACT. What would be the base sequence of the mRNA trancsribed from this gene? Using the genetic code in Figure 10.8A, give the amino acid sequence of the polypeptide translated from this mRNA. (Hint: What is the start codon?)

mRNA: GAUGCGAUCCGCUAACUGA; amino acids: Met-Arg-Ser-Ala-Asn More test answers on https://studyhippo.com/orange-coast-college-dr-jan-goerrissens-spring-2017-biology-a100-exam-3-study-guide-and-review-based-on-textbook-questions/

what is the specific amino acid sequence both GpIb and GpIIb/IIIa bind to in fibrinogen and vWF?

RGD: arginine, glycine, aspartate More test answers on https://studyhippo.com/hemostasis-ii-29529/

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Amino Acid Sequence Flashcards, test questions and answers

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What is Amino Acid Sequence?

Amino acid sequences, also known as polypeptides, are the building blocks of proteins. They form the basis of life and are essential for all cellular functions. Amino acids are organic compounds that contain an amino group (NH2) and a carboxyl group (COOH). When linked together, they form polypeptides which can range from small peptides to large proteins composed of hundreds or thousands of amino acids. Amino acid sequences determine the structure and function of proteins. Each amino acid has its own characteristics that affects how it interacts with other amino acids in a sequence. The specific sequence of amino acids in a protein is determined by the instructions encoded in our DNA, and this means that two different organisms may have different protein sequences even if they share the same gene. Sequences can be used to identify similar or related species by comparing them directly or using computer algorithms to compare patterns in their respective gene sequences. In addition, protein sequences can provide information about evolutionary relationships between species as well as hints about how organisms may have adapted to their environment over time due to changes in their protein structure. Finally, knowledge about specific amino acid sequences can also be used to develop drugs and treatments for diseases such as cancer or Alzheimer’s disease where mutations or misfolding of proteins play an important role in disease progression.