Gametes produced in the process of meiosis in humans (chromosome 4)has a long and short arm the short arm has the gene for Huntington's (H) attached and the long arm the gene for Red hair (R)

state the differences in the product cells at telophase II if a crossing over had occured halfway between the Huntington gene and the centromere.

Sorry Gemma but i am as stuffed as you on this glad to see i am not the only one doing Ou S103 i posted the question tuesday morning and when i checked last night i had 3/4 hits all asking the same thing just going to have to bluff it i think which TMA are you doing next ? as we maybe able to help each other try charles . brooker at sky com if you want to talk one to one All the best

Sorry Gemma but i am as stuffed as you on this glad to see i am not the only one doing Ou S103 i posted the question tuesday morning and when i checked last night i had 3/4 hits all asking the same thing just going to have to bluff it i think which TMA are you doing next ? as we maybe able to help each other try charles . brooker at sky com if you want to talk one to one All the best

To answer this question, we need to understand the process of meiosis and the concept of crossing over. Meiosis is the cell division process that produces gametes (sperm and egg cells) with half the number of chromosomes as the parent cell. It consists of two rounds of division called meiosis I and meiosis II.

During meiosis I, homologous chromosomes pair up and can exchange genetic material through a process called crossing over. Crossing over occurs when chromosomes align and segments of DNA are exchanged between the homologous chromosomes. This leads to the formation of new combinations of genes on the chromosomes.

Based on the given information, we have chromosome 4 with a gene for Huntington's (H) on the short arm and a gene for Red hair (R) on the long arm.

If a crossing over occurs halfway between the Huntington gene and the centromere during meiosis I, it would result in the exchange of genetic material between the short arm and the long arm of chromosome 4.

During meiosis II, the replicated chromosomes from meiosis I undergo another round of division. At telophase II, the final stage of meiosis II, the two daughter cells divide into four genetically different haploid cells (gametes).

The differences in the product cells at telophase II after crossing over between the Huntington gene (H) and the centromere would be that the genetic material on the short arm and the long arm of chromosome 4 would have been exchanged between the homologous chromosomes. This means that the gametes produced would have a different combination of genes on the short and long arms of chromosome 4 compared to the original parental chromosomes.

It is important to note that without specific information about the location of the crossing over point or the other genes on chromosome 4, we cannot determine the exact combinations of genes that would be present in the product cells.