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 type of RNA is primarily involved in the regulation of gene expression through RNA interference?
  • A. mRNA
  • B. tRNA
  • C. rRNA
  • D. siRNA
Q. Which base is found in RNA but not in DNA?
  • A. Thymine
  • B. Uracil
  • C. Cytosine
  • D. Adenine
Q. Which base is NOT found in RNA?
  • A. Adenine
  • B. Cytosine
  • C. Thymine
  • D. Uracil
Q. Which enzyme is essential for synthesizing new DNA strands during PCR?
  • A. DNA ligase
  • B. Taq polymerase
  • C. Reverse transcriptase
  • D. Restriction enzyme
Q. Which enzyme is essential for the PCR process?
  • A. DNA ligase
  • B. Taq polymerase
  • C. Reverse transcriptase
  • D. Restriction enzyme
Q. Which enzyme is primarily responsible for synthesizing new DNA strands during PCR?
  • A. DNA ligase
  • B. Taq polymerase
  • C. Restriction enzyme
  • D. RNA polymerase
Q. Which enzyme is responsible for synthesizing RNA during transcription?
  • A. DNA polymerase
  • B. RNA polymerase
  • C. Ribosome
  • D. Ligase
Q. Which molecular technique is used to amplify DNA?
  • A. Gel electrophoresis
  • B. PCR
  • C. Cloning
  • D. Sequencing
Q. Which molecular technique is used to separate DNA fragments by size?
  • A. Gel electrophoresis
  • B. PCR
  • C. Cloning
  • D. DNA sequencing
Q. Which mutation can result in a premature stop codon?
  • A. Silent mutation
  • B. Missense mutation
  • C. Nonsense mutation
  • D. Frameshift mutation
Q. Which mutation results in a change in a single amino acid in a protein?
  • A. Silent mutation
  • B. Nonsense mutation
  • C. Missense mutation
  • D. Frameshift mutation
Q. Which nitrogenous base is found in RNA but not in DNA?
  • A. Thymine
  • B. Uracil
  • C. Cytosine
  • D. Adenine
Q. Which of the following bases is found in RNA but not in DNA?
  • A. Thymine
  • B. Uracil
  • C. Cytosine
  • D. Adenine
Q. Which of the following best describes a frameshift mutation?
  • A. A mutation that changes one amino acid
  • B. A mutation that adds or removes nucleotides, altering the reading frame
  • C. A mutation that duplicates a segment of DNA
  • D. A mutation that occurs in non-coding regions
Q. Which of the following best describes a test cross?
  • A. Crossing two homozygous individuals
  • B. Crossing a homozygous individual with a heterozygous individual
  • C. Crossing an individual with an unknown genotype with a homozygous recessive
  • D. Crossing two heterozygous individuals
Q. Which of the following best describes the process of translation?
  • A. DNA is copied into RNA
  • B. RNA is converted into a protein
  • C. Proteins are degraded
  • D. RNA is replicated
Q. Which of the following describes a mutation?
  • A. A change in the DNA sequence
  • B. A process of DNA replication
  • C. A type of RNA molecule
  • D. A form of genetic inheritance
Q. Which of the following describes a phenotype?
  • A. The genetic makeup of an organism
  • B. The observable characteristics of an organism
  • C. The location of a gene on a chromosome
  • D. The sequence of nucleotides in DNA
Q. Which of the following describes the structure of DNA?
  • A. Single-stranded helix
  • B. Double-stranded helix
  • C. Triple-stranded helix
  • D. Linear structure
Q. Which of the following is a characteristic of a recessive trait?
  • A. Expressed in homozygous individuals only
  • B. Expressed in heterozygous individuals
  • C. Always expressed
  • D. Dominates over other traits
Q. Which of the following is a characteristic of autosomal dominant inheritance?
  • A. Trait skips generations
  • B. Both males and females are equally affected
  • C. Affected individuals are always homozygous
  • D. Only males can transmit the trait
Q. Which of the following is a characteristic of DNA?
  • A. Single-stranded
  • B. Contains ribose sugar
  • C. Double helix structure
  • D. Contains uracil
Q. Which of the following is a characteristic of Mendelian inheritance?
  • A. Traits are influenced by multiple genes
  • B. Traits segregate independently
  • C. All traits are dominant
  • D. Only recessive traits are expressed
Q. Which of the following is a characteristic of recessive alleles?
  • A. Always expressed in the phenotype
  • B. Only expressed in homozygous condition
  • C. Expressed in heterozygous condition
  • D. Dominates over all other alleles
Q. Which of the following is a characteristic of RNA compared to DNA?
  • A. Double-stranded structure
  • B. Deoxyribose sugar
  • C. Single-stranded structure
  • D. Thymine base
Q. Which of the following is a characteristic of RNA?
  • A. Double-stranded structure
  • B. Contains deoxyribose
  • C. Single-stranded structure
  • D. Contains thymine
Q. Which of the following is a characteristic of the double helix structure of DNA?
  • A. Antiparallel strands
  • B. Single-stranded
  • C. Left-handed twist
  • D. No hydrogen bonds
Q. Which of the following is a common application of cloning in biotechnology?
  • A. Gene therapy
  • B. DNA sequencing
  • C. Protein purification
  • D. All of the above
Q. Which of the following is a common application of PCR?
  • A. Gene therapy
  • B. Forensic analysis
  • C. Protein purification
  • D. Cell culture
Q. Which of the following is a component of RNA but not DNA?
  • A. Thymine
  • B. Uracil
  • C. Deoxyribose
  • D. Adenine
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