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Knowledge of some genetic concepts is essential for you to master this area of BIOLOGY. In this video lesson, Professor Paulo Jubilut explains, with the help of computer graphics, the concepts of dominance, recessivity, genotype, phenotype, homozygosity and heterozygosity. INTRODUCTION TO GENETICS 00:00 Introduction 00:07 Albinism 01:28 The genotype is the genetic constitution of an organism 02:24 The phenotype is the observable characteristics of an organism 04:14 Phenotype = genotype + environment 06:23 Sex of turtles 07:08 Homozygous individuals 07:48 Heterozygous individuals 08:27 Example of albinism 10:55 In genetics, alleles are represented by letters 11:28 Dominant and recessive alleles 12:15 The recessive allele manifests itself when it is in double dose 12:22 The dominant allele is expressed in double or single dose 13:40 Phenylketonuria 15:00 Do the most present characteristics in the population come from dominant alleles? 15:43 Example 19:00 How is this subject charged on the tests? 21:38 Summary Also watch our Introduction to Biology video • Introduction to BIOLOGY Prof. Paulo J... and understand more about how genetics is part of the entire group of natural sciences that is Biology. CHECK OUT MY NETWORKS - - - - - - - - - - - - - - - - - - - - - - - - - - - ⭐ INSTAGRAM: / paulojubilut ⭐ TIKTOK: / paulojubilut ⭐ My PRE-UNIVERSITY COURSE: https://bit.ly/aprova_total WELCOME TO MY CHANNEL - - - - - - - - - - - - - - - - - - - - - - - - - - - My name is Paulo Jubilut, I am a biologist and I have been here on YouTube since 2011 bringing the universe of biology to social networks. On this channel, you will find frequent videos about how biology connects with your daily life, and best of all: in a way that is easy to understand.