Do all chromosomes have the same dna? (do all chromosomes have the same exact genes)

Place the steps tor the formation of the enzyme pepsinogen in correct order

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

I’m stuck on this question cuz i’m stupid sksksksk