What do scientists use to study precambrian time? fossils from algae and other plants fossils from tiny microscopic animals ore from eroded and deformed rocks ore mined from deep inside the crust?

Ore from eroded and deformed rocks.

Explanation:

Precambrian is the name of the largest division in the earth's geological time. Corresponds to the set of Proterozoic, Archean and Hadean eons. It predates the Fanerozoic eon. Precambrian covers 90% of the earth's geological record. Only at the end of this peril did multicellular organisms evolve and sexual division developed. Also at the end of Precambrian conditions were created for the explosion of life recorded at the beginning of the Eero Fanerozoic.

These reasons make this period so important to science and are the basis of countless research and studies that seek to understand how this period contributes and influences life on our planet. When scientists want to do some study based on this period, they use ore from eroded and deformed rocks that may have been generated at that time.

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring 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.

    elongation: in which 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.

    termination: in which 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.