each codon codes for an amino acid.
a group of amino acids makes a protein.
these proteins are then used to carry out basic life functions
your answer would be a). the behavior of an organism is influenced by both its heredity and it’s environment.
the reason why this would be your answer is because heredity is a passing of a physical or mental trait, which means that the organism would get its physical or mental traits from its parents. everyone's behavior is different because everyone's brains are developed differently, which causes different behavior. the environment also influences the organism because the environment the organism is around could adapt to what's going on. for example, if a child were to go to a school and was with a bunch of kids that played around too much, the kid would adapt to that and the kids behavior would change because of it.
a exon is a portion of your dna that is expressed as a gene
the introns are just space in between the exons that are cut out during transcription
a large portion of your dna is a bunch of nothing which is believed to have been caused by retroviruses that inserts its dna into yours. these introns serve as a huge benefit to us as they are what keeps our genes from getting all screwed up from all the random mutations that happen in our dna. since more than 95% (most likely more don't really remember) is introns a mutation happening on any part of your dna is most likely to happen on the intron which is not expressed. the exons are the expressed dna which are your genes. these are the parts that are used to manufacture the proteins in your body