alleles, to balance the twin risks of anemia and malaria. 4.2 Introduction to Meiosis. Read pp.____________, EBQ #__________, HW due dates_____________, Quiz date_______ Assessment Obj Clarifying statement 4.2.1 State that 1 meiosis is a reduction division of a diploid nucleus to form haploid nuclei. 4.2.2 Define 1 homologous chromosomes. 4.2.3 Outline the 2 Limit crossing process of over to the meiosis, exchange of including genetic pairing of material homologous between chromosomes and crossing chromatids over, followed during by two prophase I. divisions, Names of the which results stages are in four required. haploid cells. 4.2.4 Explain that 3 The characteristics of Down can lead to syndrome are changes in not required. chromosome number, illustrated by reference to Down syndrome (trisomy 21). State that, in 1 4.2.5 karyotyping, chromosomes are arranged in pairs according to
alleles, to balance the twin risks of anemia and malaria. 4.2 Introduction to Meiosis. Read pp.____________, EBQ #__________, HW due dates_____________, Quiz date_______ Assessment statement Obj Clarifying 4.2.1 State that meiosis is a reduction division of a diploid nucleus to form haploid nuclei. 1 4.2.2 Define homologous chromosomes. 1 4.2.3 Outline the process of meiosis, including pairing of homologous chromosomes and crossing over, followed by two divisions, which results in four haploid cells. 2 Limit crossing over to the exchange of genetic material between chromatids during prophase I. Names of the stages are required. 4.2.4 Explain that can lead to changes in chromosome number, illustrated by reference to Down syndrome (trisomy 21). 3 The characteristics of Down syndrome are not required. 4.2.5 State that, in karyotyping, chromosomes are arranged in pairs according to 1
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