In order to produce all the protein that a cell needs, transcription takes place . * a. using single-stranded RNA b. using double-stranded RNA c. on a gene segment only once d. on a gene segment over and over again

ur answer is e & d

explanation:

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.