The physical basis for the law of independent assortment lies in meiosis I of gamete formation, when homologous pairs line up in random orientations at the middle of the cell as they prepare to separate.
Does independent assortment occur in meiosis 1 or 2?
During meiosis, the independent assortment will be made first and then cross over will be made. No, independent assortment occurs after crossing over. … During meiosis, 1 diploid cell undergoes 2 cycles of cell division but only 1 round of DNA replication. The result is 4 haploid daughter cells known as gametes.
Does meiosis do independent assortment?
We now know that this independent assortment of genes occurs during meiosis in eukaryotes. … During meiosis, the pairs of homologous chromosome are divided in half to form haploid cells, and this separation, or assortment, of homologous chromosomes is random.
Is there independent assortment in mitosis?
This is called independent assortment. No, independent assortment occurs after crossing over. Crossing over occurs in prophase I while independent assortment occurs in metaphase I and anaphase I.
Does independent assortment occur during mitosis or meiosis Why?
While in mitosis, genes are generally transferred faithfully from one cellular generation to the next; in meiosis and subsequent sexual reproduction, genes get mixed up. … Thus, because of independent assortment, recombination, and sexual reproduction, there are trillions of possible genotypes in the human species.
Does meiosis 2 have independent assortment?
Sister chromatids separate in meiosis II. Independent assortment of genes is due to the random orientation of pairs of homologous chromosomes in meiosis I. Chiasmata formation between non-sister chromatids can result in an exchange of alleles.
What does Law of Independent Assortment state?
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.
What is the result of independent assortment during meiosis?
When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other. This called is called independent assortment. It results in gametes that have unique combinations of chromosomes.
What is the difference between segregation and independent assortment?
Segregation describes that there are two alleles for a particular trait and those are separated during gametogenesis, to form haploid gametes. On the other hand, the law of independent assortment describes that those separated alleles (for different traits) can combine into the haploid chromosome in any combination.
Which best describes the law of Independent Assortment?
The law of independent assortment was first introduced by a biologist named George Mendell. It stated that when two or more characteristics are inherited, independent assortment would happen and there would be an equal opportunity for both traits to occur together.