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10 questions
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- Q1How does the sequence of nucleotides in DNA influence the structure and function of proteins in cells?The DNA sequence only affects the size of proteins.DNA sequences do not influence proteins at all.The sequence of nucleotides in DNA determines the order of amino acids in proteins.Proteins are formed without the influence of DNA.30sHS-LS1-1
- Q2What is the central dogma in molecular biology and how does it relate to DNA and protein synthesis?It suggests that RNA is the source of all genetic information.The central dogma states that proteins directly create DNA.The central dogma indicates that DNA and proteins are unrelated.The central dogma describes the flow of genetic information from DNA to RNA to proteins.30sHS-LS1-1
- Q3Why is the order of nucleotides in a DNA sequence critical for protein function?It changes the color of the protein.It only affects the amount of protein produced.It dictates the sequence of amino acids in a protein, affecting its shape and function.It has no impact on the protein's function.30sHS-LS1-1
- Q4How do cells translate the genetic code in DNA into functional proteins?Cells transcribe DNA into mRNA, which is then translated into proteins.Cells convert DNA directly into proteins without any intermediates.Proteins are synthesized first and then converted into RNA.DNA creates proteins directly without the need for RNA.30sHS-LS1-1
- Q5What role does messenger RNA (mRNA) play in the process of protein synthesis?mRNA is responsible for storing genetic information in the nucleus.mRNA is only used to replicate DNA molecules.mRNA carries the genetic code from DNA to the ribosome for protein assembly.mRNA directly forms proteins without ribosomes.30sHS-LS1-1
- Q6What is the primary function of transfer RNA (tRNA) during protein synthesis?tRNA provides energy for protein synthesis.tRNA transcribes DNA into proteins directly.tRNA is responsible for copying the DNA sequence into RNA.tRNA transports the correct amino acids to the ribosome to match the mRNA codons.30sHS-LS1-1
- Q7Why is the sequence of amino acids important in determining a protein's function?The sequence prevents the protein from degrading.The sequence specifies how the protein folds into its unique three-dimensional shape.The sequence controls the speed of protein synthesis.The sequence determines the color of the protein.30sHS-LS1-1
- Q8What is the significance of the genetic code being universal across nearly all organisms?It suggests that all organisms share identical DNA sequences.It implies that all organisms have the same number of genes.It means that the same DNA sequence codes for the same amino acids across different species.It indicates that all organisms produce the same types of proteins.30sHS-LS1-1
- Q9How does the structure of a DNA molecule facilitate the accurate replication of genetic information?The complementary base pairing allows for each strand to serve as a template for replication.DNA structure ensures that replication only occurs during cell division.The double helix directs the assembly of amino acids into proteins.The phosphate backbone produces energy for cellular activities.30sHS-LS1-1
- Q10In what way does a change in the DNA sequence affect the protein produced?DNA sequence changes never affect protein synthesis.Changes in DNA sequence only affect cell division, not protein production.A change in DNA sequence will always result in the same protein being produced.A change in DNA sequence can alter the amino acid sequence, potentially changing protein function.30sHS-LS1-1