Class 12 · Principles of Inheritance and Variation

Types of Mutations and Genetic Changes — NEET Biology

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Mutation is defined as change in the genetic material. A point mutation is a change of a single base pair in DNA. Sickle-cell anemia is caused due to change of one base in the gene coding for beta-chain of hemoglobin. Inheritable mutations can be studied by generating a pedigree of a family. Some mutations involve changes in whole set of

NCERT Biology · Class 12 · Chapter 4 · Paragraph 101
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Match the following genetic concepts/disorders with their correct descriptions: Column I (Concept/Disorder) A. Point mutation B. Chromosomal aberration C. UV radiation D. Sickle-cell anaemia E. Phenylketonuria Column II (Description/Characteristic) I. Inborn error of metabolism affecting phenylalanine conversion II. Results from loss or gain of a segment of DNA III. Change in a single base pair of DNA IV. A physical mutagen, classified as non-ionizing V. Caused by a single base substitution in the beta globin chain gene

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