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Genetics- General PowerPoint Presentation

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Genetics- General Presentation Transcript

Slide 1 - Genetics The study of genes and the inheritance of traits
Slide 2 - Characteristics These are features you exhibit physically ( your looks) Example: Eye color - green
Slide 3 - Traits The different versions of a characteristic Example: blue, green, and brown eyes
Slide 4 - Inheritance Occurs when traits are passed down from parent to child.
Slide 5 - Genes Bits of information passed down from parent to child. Made of chemicals called DNA.
Slide 6 - Genetic Diseases Can be passed on through genes from a parent to the child. Example : Marfan Syndrome (Individual is tall, has long arms and legs) Remember - JOE
Slide 7 - Reproduction Sexual – Sperm fertilizes an egg to produce offspring Asexual – occurs when 1 organism copies itself to produce offspring
Slide 8 - Fertilization Occurs when a sperm unites with an egg
Slide 9 - Offspring Another name for the children of a male and female parent
Slide 10 - Mutation Occurs when genes make a mistake mixing and produce new or different traits in the offspring.
Slide 11 - Genotype A combination of alleles Example: TT, Tt, or tt *We flipped coins to determine the genotype of our critters and puppies.
Slide 12 - Alleles T – is considered a dominant allele t – is considered a recessive allele TT – is dominant Tt or tT – is dominant tt - is recessive
Slide 13 - Punnett Square Uses mom and dad’s genotypes to determine the possible traits of their offspring. 4 offspring
Slide 14 - Phenotype They are the traits determined by reading the genotype. Example : FF = black fur Black fur is the phenotype or trait
Slide 15 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.