The table below shows the distances from earth to several different objects in the universe.  distances are shown in light years (ly).

objectdistance from earth (ly)alpha centauri a (star)4.4andromeda (galaxy)2.5 millionbetelgeuse (star)640

it would take about 77  million  years for the fastest human-made spacecraft to reach alpha centauri a. about how long would it take such a spacecraft to reach the andromeda galaxy?

  a. 

many trillions of years

  b. 

2.5 million years

  c. 

64.0 million years

  d. 

a few thousand years

i think the answer is g1

hope i

-lavira: )

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.

wha is what i will use to get my free points