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Human Genetic and Inheritance - Coggle Diagram
Human Genetic and Inheritance
Introduction
Genetics
-branch of biology that deals with inheritance
Inheritance
-passage of heredity traits from1 generation to the next
Homologous chromosomes
Paired chromosomes containing genes for the same traits
-Alleles
-mutations
gametes contain 23 pairs of chromosomes each pair from one chromosome comes from father and other chromosome from mother
Genotype
-Allele (gene) combinations
Recessive alleles
Expression
-homozygous dominant(PP)
-homozygous recessive(pp)
-heterozygous(Pp)
Dominant alleles
Phenotype
-gene expression(physical appearance
Variations of Dominant-Recessive Inheritance
Incomplete dominance
Multi-allele inheritance
Simple dominant-recessive
Complex Inheritance
Skin color, hair color, heights, metabolism rate, body build
Complex inheritance
skin color
-depend on environmental condition like sun exposure and several genes
-additive effects of 3 genes plus environmental effects produces actual skin color
Polygenic inheritance