Problem 3.2 These five concepts provide a modern interpretation of Mendelian postulates. Inheritance is governed by information stored in discrete factors called genes. Genes are transmitted from generation to generation on vehicles called chromosomes. Chromosomes, which exist in pairs in diploid organisms, provide the basis of biparental inheritance. During gamete formation, chromosomes are distributed according to postulates first described by Gregor Mendel, based on his nineteenth-century research with the garden pea. I Mendelian postulates prescribe that homologous chromosomes segregate from one another and assort independently with other segregating homologs during gamete formation. Part A Based on these concepts, choose statements that correlate Mendel's four postulates with what is now known about genes, alleles, and homologous chromosomes. Select the five correct statements. Some gene pairs on nonhomologous chromosomes can aggregate after separation and mitosis or meiosis would stop. Some genes have dominant and recessive alleles. Unit factors occur in pairs. Some possible gametic combinations are formed with higher probability if dominant alleles take part in meiosis. During mitosis and meiosis, when chromosomes are visible in their characteristic shapes, members of a homologous pair have different sizes and exhibit opposite centromere locations. Different gene pairs on non-homologous chromosomes will separate independently from each other during meiosis. Alleles segregate from each other during gamete formation at anaphase I. Dominant alleles can become codominant alleles during mitosis. One gene pair separates independently from other gene pairs. Submit My Answers Give Up Provide Feedback Continue