Intro to Genetics
Presentation
•
Biology
•
9th Grade
•
Easy
Standards-aligned
Allyson Culp
Used 405+ times
FREE Resource
25 Slides • 14 Questions
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Genetics
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Gregor Mendel
German monk
Experimented with pea plants
Discovered basic principles of heredity
Considered the “father of modern genetics”
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Multiple Choice
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Gregor Mendel
Discovered that certain traits occur in offspring without any blending
Example: pea plants were either purple or white
not blended
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Mendel showed that many traits do NOT blend!
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Mendel's Theories
There are different versions of genes called ALLELES
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Multiple Choice
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Multiple Select
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Multiple Select
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Mendel's Theories
humans get 2 copies of each gene (one copy from each parent)
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Multiple Choice
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Alleles
Alleles are represented by letters (can be ANY letter!)
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Alleles
Capital letters = dominant alleles
lowercase letters =recessive alleles
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Dominant
Dominant alleles are always seen (if present)
capital letters
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Recessive
Recessive alleles are hidden (unless there is no dominant present)
lowercase
green in this example-->
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Multiple Select
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Multiple Select
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Which color is the dominant trait.
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Multiple Choice
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Genotype
the alleles you get from your parents
can be the same (bb/BB) or different (Bb)
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Phenotype
PHYSICAL appearance
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Multiple Choice
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Multiple Choice
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Genotypes
Can be homozygous or heterozygous
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
Based upon the genotypes, which color of flower is DOMINANT?
Genetics
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