20 public questions tagged with this topic.
Streptokinase, produced by Streptococcus bacteria, is used as a clot-busting drug.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Industrial Products - Organic Acids Enzymes Bioactive Molecules
Dengue is a vector-borne disease transmitted by Aedes mosquitoes.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Histamine does not inhibit inflammation; instead, it promotes inflammation and allergic responses.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
The Widal test is a serological test used to diagnose typhoid fever by detecting antibodies against Salmonella typhi.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Neutrophils do not produce antibodies; instead, they engulf and destroy pathogens through phagocytosis.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Typhoid fever is caused by the bacterium Salmonella typhi, which spreads through contaminated food and water.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Tetanus is caused by Clostridium tetani and is characterized by severe muscle stiffness and lockjaw.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
A point mutation occurs when a single nucleotide is altered, but it does not affect the reading frame.
Ref: NCERT Class 12 Biology Chapter 4: Principles of Inheritance and Variation Sex Determination Mutation and Genetic Disorders
Phenylketonuria (PKU) is caused by a mutation in the gene coding for phenylalanine hydroxylase, leading to the accumulation of phenylalanine.
Ref: NCERT Class 12 Biology Chapter 4: Principles of Inheritance and Variation Sex Determination Mutation and Genetic Disorders
A frameshift mutation occurs when a nucleotide is inserted or deleted, shifting the reading frame of the gene.
Ref: NCERT Class 12 Biology Chapter 4: Principles of Inheritance and Variation Sex Determination Mutation and Genetic Disorders
Thalassemia follows an autosomal recessive pattern, requiring two defective alleles for disease expression.
Ref: NCERT Class 12 Biology Chapter 4: Principles of Inheritance and Variation Sex Determination Mutation and Genetic Disorders
Oxygen binds reversibly with hemoglobin to form oxyhemoglobin, which facilitates oxygen transport in the blood.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
