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#drnajeeb #medicines #mutations #mutation #biomolecules #biology #dna Mutation | Types of Mutations | DNA Genetics | Part 1👨⚕️ Like this video? Sign up now on our website at https://www.DrNajeebLectures.com to access 1000+ Exclusive videos on Basic Medical Sciences & Clinical Medicine. These are premium videos (NOT FROM YOUTUBE). All these videos come with English subtitles & download options. Sign up now! Get Lifetime Access for a one-time payment of $59 ONLY! Sign up now on our website at https://members.drnajeeblectures.com/... --------------------------------------------------------------------------------------------------------------------------- Why sign up for premium membership? Here's why! Membership Features for premium website members. 1. More than 1000+ Medical Lectures. 2. Basic Medical Sciences & Clinical Medicine. 3. Mobile-friendly interface with android and iOS apps. 4. English subtitles and new videos every week. 5. Download option for offline video playback. 6. Fanatic customer support and that's 24/7. 7. Fast video playback option to learn faster. 8. Trusted by over 2M+ students in 190 countries. --------------------------------------------------------------------------------------------------------------------------- ▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 00:00:00 What Is Mutation 00:02:49 Types Of Mutations 00:03:13 Somatic Cell Mutation 00:05:00 Congenital Defects 00:07:09 Mutations In Germ Cells 00:11:28 What Is Genetic Code And Mechanism Of Transcription And Translation 00:18:80 mRNA role 00:23:27 Stop Codon And Its Types 00:25:40 Role Of Transfer Rna And Anticodon 00:28:47 Explanation Through An Example 00:31:44 Summary Of Genetic Code 00:35:27 Analysis Of Principles Of Genetic Code (Specificity) 00:43:42 Universal Principle 00:47:38 Redundancy 00:52:29 Rule Of Codon And Anti Codon Matching 00:58:26 Adjustment(Traditional And Non Traditional Matching) --------------------------------------------------------------------------------------------------------------------------- Types of Mutations There are various schemes for classification of different kind of mutations. Depending on: A. The Type of Cell Involved 1. Somatic mutations • Mutations that are in the somatic tissues of the body. • Mutations are not transmitted to progeny. • The extent of the phenotypic effect depends upon whether the mutation is dominant or recessive (dominant mutations generally have a greater effect). • The extent of the phenotypic effect depends upon whether it occurs early or late in development (early arising mutations have a greater effect). 2. Germinal mutations • Mutations that are in the germ tissues of the body. • Mutations may be transmitted to progeny • Dominant mutations are seen in first generation after the mutation occurs • If a female gamete containing an X-linked mutation is fertilized, the males will show the mutant phenotype • Recessive mutations will only be seen upon the chance mating with an individual carrying the recessive allele too; thus, the recessive mutation may remain hidden for many generations B. Mode of Origin (1) Spontaneous mutations The spontaneous mutations occur suddenly in the nature and their origin is unknown. They are also called “background mutation” and have been reported in many organisms such as, Oenothera, maize, bread molds, microorganisms (bacteria and viruses), Drosophila, mice, man, etc. (2) Induced mutations Besides naturally occurring spontaneous mutations, the mutations can be induced artificially in the living organisms by exposing them to abnormal environment such as radiation, certain physical conditions (i.e., temperature) and chemicals. C. Direction of Mutation According to their mode of direction following types of mutations have been recognized: --------------------------------------------------------------------------------------------------------------------------- Join this channel to get access to perks: Sign up now on our website at https://members.drnajeeblectures.com/... / @doctornajeeb Follow us on Facebook :- / drnajeeb Follow us on Instagram :- / drnajeeblectures