Will thumbs up all !
1.
according to the theory of evolution, mutation is integral to natural selection and earth’s resulting diversity.

true

false
2.
it does not take much energy to change the temperature of a volume of water.

true

false
3.
osmosis is

the engulfing of liquid particles by the cell membrane

the diffusion of water across a membrane

the engulfing of large particles by the cell membrane

the pumping of substances by transport proteins
4.
a pea plant expresses the recessive trait for flower color. how are its alleles abbreviated scientifically?

rr

rr

rr

rr

i believe the answer is c

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.