In an experiment two genes were assorted independently. Which of following points explain the best about the chromosomal location of these 2 genes? They are located in close proximity on the same chromosome Crossing over between the genes does not occur The genes are either located on different chromosomes or are far apart on the same chromosome The location of the genes cannot be predicted based on the given data

The best explanation for the chromosomal location of these two genes, given that they are assorted independently, is that "The genes are either located on different chromosomes or are far apart on the same chromosome".

This is because independent assortment is a principle of genetics stating that genes for different traits segregate, or assort, independently of each other during the formation of gametes. This principle is typically observed when the genes in question are located on different chromosomes. However, it can also occur if the genes are far apart on the same chromosome, as recombination events (or crossing over) are more likely to occur between them, effectively shuffling their alleles in the same way as if they were on different chromosomes.

The other options are less likely:

• If the genes were in close proximity on the same chromosome, they would likely not assort independently, as crossing over would be less likely to occur between them.
• The statement that crossing over between the genes does not occur is not necessarily indicative of their location. While it's true that genes close together on a chromosome are less likely to experience crossing over, it's also possible for crossing over to not occur between genes on different chromosomes.
• The location of the genes can indeed be predicted based on the given data, as explained above, so the last option is not correct.

The best explanation for the chromosomal location of these two genes, given that they are assorted independently, is that "The genes are either located on different chromosomes or are far apart on the same chromosome".

This is based on Mendel's law of independent assortment, which 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.

This is most likely to occur when the genes are located on different chromosomes. However, it can also occur if the genes are far apart on the same chromosome because crossing over (the exchange of genetic material between homologous chromosomes during meiosis) is more likely to occur between them, ensuring their independent assortment.

The other options are less likely:

• If the genes were in close proximity on the same chromosome, they would likely be linked and not assort independently.
• If crossing over between the genes did not occur, this would suggest that the genes are close together on the same chromosome, contradicting the premise that they assort independently.
• The location of the genes can indeed be predicted based on the given data, as explained above.