It would better your city. The city would look way nicer and a lot of people would probably enjoy a recycling program. For the reasons of having reused items so the dump won't be as bad and it would give more jobs and be a healthy way of discarding old paper and bottles. It could easily help out your city. The recycling program would be a great idea and I hope it could happen.
I hope this is what you wanted.....
Sister chromatids have different alleles although carry same genes on same loci. So if it doesn't happen so, like if there are same alleles on sister chromatids then there is a problem in its formation. i.e., male and female alleles haven't contributed equally ( may be an error during their segregation process ). And obviously it doesn't happen in a real cell so we must understand this point. Because normally whenever it happens there's one half from the male and one half from the female. (i.e. maternal and paternal alleles contribute equally).
I hope you get the answer!!!
Models show noticeable patterns, develop representations and explain scientific events.
the answer is c elm do to it having a saw blade edged