Which trait is determined by both genetics and the environment? eye color athletic ability blood type a scar

athletic ability

Some things are 100% genetic based whilst some are 100% environmental based and some are a clear combination of the two.

Things like our color of eyes, blood type, quality vision, teeth, and certain diseases are purely genetic based. Children tend to get the eye color based on what they receive from their parents.

Whereas, what kind of language, religion and social traits you adapt are purely environmental based.

Traits that are a combination of both genetic and environment are height, weight and diseases.  

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.