why are snps more common in non coding regions? (1 Viewer)

[stressedadfff]

?

 

[Eagle Mum]

When SNPs occur in coding regions, the majority are deleterious/pathogenic/harmful and either not compatible with life or sadly, affect survival to reproductive age. Therefore such SNPs are not propagated to offspring/future generations.
SNPs in noncoding regions may have no effect or only mild effect and therefore the individual survives beyond reproductive age, passing on the SNP in the noncoding region to offspring. In this way, SNPs in non coding regions can accumulate over generations.

 

[stressedadfff]

When SNPs occur in coding regions, the majority are deleterious/pathogenic/harmful and either not compatible with life or sadly, affect survival to reproductive age. Therefore such SNPs are not propagated to offspring/future generations.
SNPs in noncoding regions may have no effect or only mild effect and therefore the individual survives beyond reproductive age, passing on the SNP in the noncoding region to offspring. In this way, SNPs in non coding regions can accumulate over generations.

thank you!!! would you know the following question by any chance? Outline the steps which occur between the fertilisation of an egg and the implantation of a blastocyst in the lining of the uterus. (2 marks)