AP Biology · Unit 5

Heredity

In short

Unit 5: Heredity in AP Biology covers 5 topics: Meiosis, Meiosis and Genetic Diversity, Mendelian Genetics, Non-Mendelian Genetics and 1 more. Open each one for what you need to know, a self-check list and how it is tested on the exam.

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What is in Unit 5: Heredity?

Unit 5: Heredity

5.1 Meiosis
5.2 Meiosis and Genetic Diversity
  • I can explain how the correct separation of homologous chromosomes and sister chromatids results in haploid gametes with an assortment of maternal and paternal chromosomes, and describe the non-haploid results of nondisjunction.
  • I can describe how crossing over during prophase I exchanges genetic material between non-sister chromatids to increase genetic diversity.
  • I can explain how sexual reproduction, including crossing over, random assortment, and fertilization, increases genetic variation in eukaryotes.
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5.3 Mendelian Genetics
  • I can use rules of probability, Punnett squares, and pedigrees to analyze single-gene traits, determine allele dominance, and predict genotypes and phenotypes.
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5.4 Non-Mendelian Genetics
  • I can explain how linked genes, codominance, and incomplete dominance deviate from Mendelian ratios and calculate map distance between linked genes.
  • I can predict the pattern of inheritance for sex-linked traits using data such as pedigrees.
  • I can describe pleiotropy as a single gene resulting in multiple traits that do not segregate independently.
  • I can explain how non-nuclear inheritance of chloroplast and mitochondrial DNA occurs maternally and does not follow Mendelian rules.
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5.5 Environmental Effects on Phenotype

Heredity: common questions

What is in Unit 5: Heredity?

It covers 5 topics: 5.1 Meiosis; 5.2 Meiosis and Genetic Diversity; 5.3 Mendelian Genetics; 5.4 Non-Mendelian Genetics; 5.5 Environmental Effects on Phenotype.

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