AP BIOLOGY

Detailed explanation-1: -Mendel’s law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.

Detailed explanation-2: -Linked Genes Violate the Law of Independent Assortment. Although all of Mendel’s pea characteristics behaved according to the law of independent assortment, we now know that some allele combinations are not inherited independently of each other.

Detailed explanation-3: -The idea behind independent assortment is that genes are inherited independently of one another. In other words, the genetic factors that control crest and sex are physically separate. Because the genetic factors are physically separate, they segregate independently during gamete (egg and sperm) formation.

Detailed explanation-4: -Random Orientation refers to the behaviour of homologous pairs of chromosomes (metaphase I) or pairs of sister chromatids (metaphase II) in meiosis. Independent assortment refers to the behaviour of alleles of unlinked genes as a result of gamete production (meiosis).

Detailed explanation-5: -The Mendel’s four postulates and laws of inheritance are: (1) Principles of Paired Factors (2) Principle of Dominance(3) Law of Segregation or Law of Purity of Gametes (Mendel’s First Law of Inheritance) and (4) Law of Independent Assortment (Mendel’s Second Law of Inheritance).