Genetics & Molecular Biology

Biotechnology Applications: PCR, Cloning, Recombinant DNA Biotechnology Applications: PCR, Cloning, Recombinant DNA - Advanced Concepts Biotechnology Applications: PCR, Cloning, Recombinant DNA - Applications Biotechnology Applications: PCR, Cloning, Recombinant DNA - Case Studies Biotechnology Applications: PCR, Cloning, Recombinant DNA - Competitive Exam Level Biotechnology Applications: PCR, Cloning, Recombinant DNA - Higher Difficulty Problems Biotechnology Applications: PCR, Cloning, Recombinant DNA - Numerical Applications Biotechnology Applications: PCR, Cloning, Recombinant DNA - Problem Set Biotechnology Applications: PCR, Cloning, Recombinant DNA - Real World Applications Central Dogma: Transcription & Translation Central Dogma: Transcription & Translation - Advanced Concepts Central Dogma: Transcription & Translation - Applications Central Dogma: Transcription & Translation - Case Studies Central Dogma: Transcription & Translation - Competitive Exam Level Central Dogma: Transcription & Translation - Higher Difficulty Problems Central Dogma: Transcription & Translation - Numerical Applications Central Dogma: Transcription & Translation - Problem Set Central Dogma: Transcription & Translation - Real World Applications Mendelian Genetics and Heredity Mendelian Genetics and Heredity - Advanced Concepts Mendelian Genetics and Heredity - Applications Mendelian Genetics and Heredity - Case Studies Mendelian Genetics and Heredity - Competitive Exam Level Mendelian Genetics and Heredity - Higher Difficulty Problems Mendelian Genetics and Heredity - Numerical Applications Mendelian Genetics and Heredity - Problem Set Mendelian Genetics and Heredity - Real World Applications Structure of DNA and RNA Structure of DNA and RNA - Advanced Concepts Structure of DNA and RNA - Applications Structure of DNA and RNA - Case Studies Structure of DNA and RNA - Competitive Exam Level Structure of DNA and RNA - Higher Difficulty Problems Structure of DNA and RNA - Numerical Applications Structure of DNA and RNA - Problem Set Structure of DNA and RNA - Real World Applications
Q. What is the role of ribosomes in protein synthesis?
  • A. To transcribe DNA into RNA
  • B. To translate mRNA into polypeptides
  • C. To replicate DNA
  • D. To splice introns from mRNA
Q. What is the role of RNA polymerase in gene expression?
  • A. To replicate DNA
  • B. To synthesize RNA from a DNA template
  • C. To splice RNA
  • D. To translate RNA into protein
Q. What is the role of the 5' cap in mRNA processing?
  • A. To signal the start of translation
  • B. To protect mRNA from degradation
  • C. To facilitate splicing
  • D. To enhance transcription
Q. What is the role of the promoter in gene expression?
  • A. To terminate transcription
  • B. To enhance translation
  • C. To initiate transcription
  • D. To splice RNA
Q. What is the role of tRNA during translation?
  • A. To carry amino acids to the ribosome
  • B. To synthesize mRNA
  • C. To unwind DNA
  • D. To form peptide bonds
Q. What is the role of tRNA in translation?
  • A. To carry amino acids to the ribosome
  • B. To synthesize mRNA
  • C. To replicate DNA
  • D. To form ribosomal subunits
Q. What is the significance of gel electrophoresis in molecular biology?
  • A. To separate DNA fragments based on size
  • B. To amplify DNA
  • C. To synthesize proteins
  • D. To sequence RNA
Q. What is the significance of the 'denaturation' step in PCR?
  • A. To cool the reaction mixture
  • B. To separate the DNA strands
  • C. To synthesize new DNA strands
  • D. To add primers
Q. What is the significance of the 'sticky ends' created by restriction enzymes?
  • A. They stabilize RNA
  • B. They allow for the easy joining of DNA fragments
  • C. They prevent mutations
  • D. They enhance PCR efficiency
Q. What is the significance of the 'sticky ends' in DNA cloning?
  • A. They prevent DNA degradation
  • B. They facilitate the ligation of DNA fragments
  • C. They enhance PCR efficiency
  • D. They stabilize RNA structures
Q. What is the significance of the 'sticky ends' in recombinant DNA technology?
  • A. They help in DNA replication
  • B. They facilitate the ligation of DNA fragments
  • C. They are used for PCR amplification
  • D. They stabilize the DNA structure
Q. What is the significance of the 'sticky ends' produced by some restriction enzymes?
  • A. They allow for easier ligation of DNA fragments
  • B. They prevent DNA degradation
  • C. They enhance PCR efficiency
  • D. They facilitate RNA transcription
Q. What is the significance of the 5' and 3' ends of a DNA strand?
  • A. They indicate the direction of replication
  • B. They determine the type of base pairs
  • C. They are sites for protein binding
  • D. They are involved in RNA splicing
Q. What is the significance of the 5' cap and poly-A tail in eukaryotic mRNA?
  • A. They are involved in DNA replication
  • B. They protect mRNA from degradation and assist in translation
  • C. They are sites for transcription initiation
  • D. They help in splicing introns
Q. What is the significance of the 5' cap and poly-A tail in mRNA?
  • A. They are involved in DNA replication
  • B. They protect mRNA from degradation and assist in translation
  • C. They are required for transcription initiation
  • D. They help in the splicing of introns
Q. What is the significance of the promoter region in a gene?
  • A. It codes for the protein
  • B. It is where RNA polymerase binds to initiate transcription
  • C. It terminates transcription
  • D. It is a coding sequence
Q. What is the significance of the promoter region in gene expression?
  • A. It is where RNA polymerase binds to initiate transcription
  • B. It codes for the protein product
  • C. It is involved in splicing of mRNA
  • D. It terminates transcription
Q. What is the significance of the start codon in mRNA?
  • A. It signals the end of translation
  • B. It initiates the process of translation
  • C. It is the site of transcription
  • D. It codes for a stop signal
Q. What is the term for an observable characteristic of an organism?
  • A. Genotype
  • B. Phenotype
  • C. Allele
  • D. Locus
Q. What is the term for an observable characteristic that is influenced by both genetic and environmental factors?
  • A. Genotype
  • B. Phenotype
  • C. Allele
  • D. Locus
Q. What is the term for different forms of a gene?
  • A. Chromosomes
  • B. Alleles
  • C. Genotypes
  • D. Phenotypes
Q. What term describes an organism's genetic makeup?
  • A. Phenotype
  • B. Genotype
  • C. Allele
  • D. Locus
Q. What type of bond connects the sugar and phosphate groups in a DNA strand?
  • A. Hydrogen bond
  • B. Ionic bond
  • C. Covalent bond
  • D. Peptide bond
Q. What type of bond connects the sugar and phosphate groups in the DNA backbone?
  • A. Hydrogen bond
  • B. Ionic bond
  • C. Covalent bond
  • D. Peptide bond
Q. What type of bond holds the two strands of DNA together?
  • A. Ionic bonds
  • B. Covalent bonds
  • C. Hydrogen bonds
  • D. Peptide bonds
Q. What type of inheritance pattern is shown by a trait that skips generations?
  • A. Autosomal dominant
  • B. Autosomal recessive
  • C. X-linked dominant
  • D. X-linked recessive
Q. What type of mutation involves a change in a single nucleotide base pair?
  • A. Frameshift mutation
  • B. Point mutation
  • C. Deletion mutation
  • D. Insertion mutation
Q. What type of mutation involves a change in a single nucleotide?
  • A. Frameshift mutation
  • B. Point mutation
  • C. Deletion mutation
  • D. Duplication mutation
Q. What type of mutation results in a change in a single nucleotide?
  • A. Frameshift mutation
  • B. Point mutation
  • C. Deletion mutation
  • D. Insertion mutation
Q. What type of mutation results in a premature stop codon?
  • A. Missense mutation
  • B. Nonsense mutation
  • C. Silent mutation
  • D. Frameshift mutation
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