How many alleles does an organism inherit from each parent?

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Which of the following statements are true chromosomes make up genes

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity