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Genetics (Science of Inheritance) (Monohybrid cross download (14) …
Genetics (Science of Inheritance)
Mutation
Any chnage in DNA
Different kind of Mutation
Insertion (Addition of extra DNA)
Point Mutation (Smallest mutation, affecting the
least amount of DNA)
Inversion (DNA tangled and breaks, and during repair, it is put in
backward)
Inversion (DNA tangled and breaks, and during repair, it is put in
backward)
Effects of Mutation
Depends on Nature, its Position, and its Extent
Causes of Mutation
Certain chemicals, Ultraviolet rays, X-rays, and radiation from
radioactive substances
Mutagen is something that causes mutation
DNA Repair Process
Xeroderma Pigmentosum: Caused by inability to repair mutations
caused by ultraviolet ray
Mutation occur in genes that code for repair enzymes causing
serious problem
Somatic Mutation (Mutation that happen in cells that never
lead to sex cells
Dihybrid cross
Crossing Over
Genes on the Same Chromosomes
independent assortment
Monohybrid cross
Crossing Heterozygotes with Themselves
Plant can be selfed by being crossed with another plant with
exactly the same genotype
Punnett Square
Mutiple Alleles (Gene may exist in any forms,
called multiple alleles
Monohybrid Crosses with Incomplete Dominance
Genetic Symbol
heterozygous
homozygous
Only single character is analyzed and studied
Monohybrid Crosses with Complete Dominance
Dominance
Recessive
Test Cross
Genotype can be revealed by a test cross
Alleles
Plants would be identical physically but virtually all
genes occur in multiple forms
Phenotype
The expression of alleles in the individual's size, shape or
metabolism
Genotype
Types of alleles that a single individual has
Replication of DNA
Multiple Genes for one Character:
Quantitative Trait Loc
Other aspects of inheritance
Lethal Alleles
Multiple set of Chromosomes and Gene Families
Maternal Inheritance
Uniparental inheritance
Biparental Inheritance
