Biology, 09.02.2021 04:30 alienxangg91

How does structure of dna relate to the process of replication and protein synthesis?

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Hello Sophia,
The structure of DNA relates to the process of replication and protein synthesis actually in many ways. DNA is a nucleus acid, one of the 4 major macromolecules (polymers). It provides the instructions for making proteins. When DNA replicates, one strand is used as a template for DNA polymerase to joint corresponding nitrogenous bases. Small, individual sections of the DNA are called genes, which code for a specific protein. STRUCTURE ALWAYS DETERMINES FUNCTION! Thus, DNA tells the cells which amino acids (building blocks of proteins) and in what order for the ribosomes (found in the cytoplasm) to synthesize. These proteins then determine our traits and characteristics. It may be more than you need, but hopefully it helps somewhat. Great question, though! Biology is so interesting, when you think about it! It makes our world and our selves.

Answer from: Quest

answer: that would be cheating

explanation:

Answer from: Quest

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.