Question

what can we observe in order to visualize mendels law of segregation? see concept 15.1 (page)
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the behavior of sex - linked geneshomologous chromosomes separating during meiosis iihomologous chromosomes separating during meiosis ithe replication of dnasister chromatids separating during mitosis

Explanation:

Mendel's Law of Segregation states that alleles segregate during gamete formation. Homologous chromosomes carry alleles for a trait. During meiosis I, homologous chromosomes separate. This separation is the physical basis for the segregation of alleles as described by Mendel's Law of Segregation. Sex - linked genes are related to genes on sex chromosomes and not directly the visual basis for the general Law of Segregation. Homologous chromosomes separate in meiosis I, not meiosis II. DNA replication is about copying DNA and not about allele segregation. Sister chromatids separating during mitosis is part of a different cell division process (mitosis) which is for growth and repair, not gamete formation where Mendel's laws are relevant.

Answer:

homologous chromosomes separating during meiosis I