The human beta-globin wild-type allele and a certain mutant allele are identical in sequence except for a single base-pair substitution that changes one nucleotide at the end of intron 2. the wild-type and mutant sequences of the affected portion of pre-mrna are
intron 2 exon 3
wild type 5’-ccucccacag cuccug-3’
mutant 5’-ccucccacug cuccug-3’
a) speculate about the way in which this base substitution causes mutation of beta-globin protein.
b) this is one example of how dna sequence change occurring somewhere other than in an exon can produce mutation. list other kinds of dna sequence changes occurring outside exons that can produce mutation. in each case, characterize the kind of change you would expect to see in mutant mrna or mutant protein.

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

Are the earth's ocean floor and continents the same age geologically? why or why not?

Can someone pretty me with this ? it’s urgent.compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.