Which of the following is true of crossing over? Genes are...

Which of the following is true of crossing over? Genes are swapped between non-homologous sister chromatids. Alleles are swapped between non-sister homologous chromatids. Genes are swapped between homologous sister chromatids. Alleles are swapped between non-homologous chromosomes. Genes are swapped between non-homologous sister chromatids. Alleles are swapped between non-sister homologous chromatids.

Transcript

00:01 Meiosis meiosis is a type of cell division that can be seen only in the germ cells the reason behind this is that meiosis in turn is also referred by the term reduction division that is it reduces the number of chromosome that is seen in a particular cell let's say and this meosis in turn has two stages namely meiosis one and then meiosis two and these are the stages which in turn will help in this reduction that is let's say and this let's say a particular cell and this particular cell is deployed in nature which is denoted as two in it undergoes meiosis one so at the end of meiosis one there will be two cells which are formed and these two so let's say this to be one cell and this to be another cell and these two cells immediately undergo the next division which is meiosis two so this in turn results in a production of four cells and these four cells and this cell also will be haploid in nature that is these two cells also sorry it will be deployed in nature and this deployed can be denoted with a letter two in and whereas these four cells as they have not replicated or duplicated their content these four cells will be haploid in nature that is why it is called as a reduction division and this in turn can be denoted with a letter n so it is a kind of division that converts two into in so that is why it is called as the reduction division and one of the critical even that defines meiosis is an even that is called as crossing over crossing over is an even that will take place among the chromosomes and these chromosomes that are referred as homologous chromosome should be noted the reason behind why it is called as homologous chromosome is that they are the identical copies that are taken from both the parent that is one copy it from it could be from the father and the reason the other copy it could be from the mother and hence they are completely identical.

01:59 So that is the reason why it is called as homologous chromosomes.

02:04 Let's say this to be a chromosome.

02:06 So this chromosome when it undergoes replication, it would form another copy of it and this is called as the homologous chromosome...

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