Which enzyme is used specifically for rna transcription from dna in the nucleus of a cell?

Depending on the organism the number of in a cell may change

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans