Massachusetts Life Sciences Standards
LS3. Heredity: Inheritance and Variation of Traits
HS-LS3-2. Make and defend a claim based on evidence that genetic variations (alleles) may result from (a) new genetic combinations via the processes of crossing over and random segregation of chromosomes during meiosis, (b) mutations that occur during replication, and/or (c) mutations caused by environmental factors. Recognize that mutations that occur in gametes can be passed to offspring.
HS-LS3-3. Apply concepts of probability to represent possible genotype and phenotype combinations in offspring caused by different types of Mendelian inheritance patterns.
HS-LS3-4(MA). Use scientific information to illustrate that many traits of individuals, and the presence of specific alleles in a population, are due to interactions of genetic factors and environmental factors.
HS-LS3-3. Apply concepts of probability to represent possible genotype and phenotype combinations in offspring caused by different types of Mendelian inheritance patterns.
HS-LS3-4(MA). Use scientific information to illustrate that many traits of individuals, and the presence of specific alleles in a population, are due to interactions of genetic factors and environmental factors.
Topics on this page
Genetics
- Meiosis - Crossing
over - Punnet Squares and Models of Heredity
- Virtual Lab Activities
Crossing Over VideoWatch the video above, then answer the crossing over questions using the link below.
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Genetics Activity Option 1: PigeoneticsComplete the activity above, then answer the Genetics Activity Questions using the link below.
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Genetics Activity Option 2:
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