A mutation is found that prevents #2 but not #1. Which of the following is the best hypothesis for which protein is
mutated?
O ATP cannot be synthesized from ADP and P; due to a
mutation in ATP synthase.
O Covalently bound P; cannot be removed from
molecules due to a mutation in phosphatase.
O Non-covalently bound ATP cannot be split into ADP
and P; due to a mutation in ATP hydrolase.
O ATP cannot bind covalently to molecules and split into
a bound P; and free-floating ADP due to a mutation in
a kinase.

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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.

the answer is c on e2020, bud.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?