Many experiments on Earth's early atmosphere have resulted in the formation of organic molecules, but none have resulted in cell formation. In which of the following ways do the experimental conditions prevent cell formation in the lab? A: The ultraviolet light intensity of Earth's early atmosphere cannot be reproduced.

B: The gas composition of Earth's early atmosphere cannot be replicated.

C: The nutrients of Earth's early atmosphere are different from those found today.

D: The experiments cannot last for billions of years as conditions did in Earth's early atmosphere.

answer; /// i do believe the correct answer is (

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.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

i believe it is c: genes for body color and wing size are inherited separately from each parent.