Suppose that during meiosis I, the paternal chromosomes always went to one pole and the maternal chromosomes always went to the other pole. How would this affect the genetic variability of the offspring? Would children tend to look more like the parents? Why?

The sperms would then reflect the genetics received from each paternal grandparent, one set from paternal grandpa and one from paternal grandma, as it was in the conception of the father.

However, would you have that same factor in the development of the ovum, or would there be normal variability?

Would the offspring tend to look more like the parents or the paternal grandparents?

I hope this helps you in thinking this out. Thanks for asking.

Wouldnt the ovum be the same as the sperm, only from the mother instead?

And the offspring would tend to look like the paternal grandparents then?

You have only indicated what is supposed to happen within the testes of the male parent in your question. There is no indication of what is happening in the ovaries of the female parent.

In terms of looking like the parents, the children are still getting half of their genetics from each parent, regardless.

Remember that the paternal grandpa sperm would essentially always have a Y chromosome, and the paternal grandma sperm would always have an X. It would seem that the male siblings would look more like each other, and the female siblings would look more like each other, essentially like they are "half-twins" in this scenario. There would be less genetic variability within each gender.

Yes, I believe they would look more like the paternal grandparents — girls like grandma, boys like grandpa.

I hope this helps a little more. Thanks for asking.

thanks.

What would happen if all the maternal chromosomes went to one pole though in meiosis?

"If all the maternal chromosomes went to one pole though in meiosis", would this mean that you would have either 46 or zero chromosomes in the ovum? Either way, the chances of viability (living/surviving) are lacking.

The zygote would either have a diploid number of 23 or 69, both of which vary significantly from the diploid number for our species.

I hope this helps. Thanks for asking.

If during meiosis I, the paternal chromosomes always went to one pole and the maternal chromosomes always went to the other pole, it would result in a phenomenon called "non-disjunction." Typically, during meiosis I, the homologous pairs of chromosomes separate and go to opposite poles, ensuring genetic variability in the resulting offspring. However, in this scenario, without the random distribution of paternal and maternal chromosomes, the genetic variability would be significantly reduced.

In a typical meiosis process, the alignment and separation of chromosomes into gametes are random and independent. This random distribution ensures that each offspring receives a unique combination of paternal and maternal chromosomes, resulting in increased genetic diversity in the population.

If paternal chromosomes always went to one pole and maternal chromosomes always went to the other pole, there would be a lack of genetic mixing or recombination between the parental chromosomes. This would lead to a relatively limited number of possible genetic combinations and a reduced diversity of traits in the offspring.

As a result, children would tend to look more like their parents since they would inherit a specific combination of paternal and maternal alleles without the typical shuffling of genetic material that occurs during meiosis. This means there would be less variation in their traits and less likelihood of displaying unique combinations of characteristics found in their ancestors.

In conclusion, if meiosis I consistently resulted in the paternal and maternal chromosomes segregating in this manner, it would greatly reduce genetic diversity, making children more similar to their parents and limiting the potential variety of traits observed in subsequent generations.