1. How can a genetic mutation be harmful in one environment and helpful in another? 2. Why do you think certain mutations persist if they can be lethal?
3. Why are there more people with sickle cell disease in one part of the world than in other parts?

Time remaini 02: 50: 5 in the farewell speech, queen elizabeth's use of first-person point of view her to appear to be impartial and objective prevents her from addressing the audience directly allows her to share her personal thoughts and ideas, makes it seem as though she's observing from the outside, mack this and return save and evit

Dna and rna share a number of similarities,but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna

A(n) is a molecule influences the way that a molecule reacts.