what types of rna are transcribed by dna in the nucleus?
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In the nucleus, the DNA code is "transcribed," or copied, into a messenger RNA (mRNA) molecule. In the cytoplasm, the mRNA code is "translated" into amino acids.
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Transcription is the process in which a gene's DNA sequence is copied (transcribed) to make an RNA molecule. ... RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule.
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The two main types of nucleic acids are DNA and RNA. Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base.
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For example, a precursor mRNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing. Pre-mRNA is synthesized from a DNA template in the cell nucleus by transcription. ... Once pre-mRNA has been completely processed, it is termed "mature messenger RNA", or simply "messenger RNA".
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The conversion of the information stored within DNA into a functional molecule, or RNA and proteins, is termed gene expression. ... During transcription, DNA is copied into RNA. RNA is then used to synthesize proteins during translation.
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Abstract. Nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), carry genetic information which is read in cells to make the RNA and proteins by which living things function. The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation.
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In most organisms DNA is the main genetic blueprint, while mRNA carries the information in the DNA code to the ribosome, where the mRNA is translated into proteins according to the sequence of the bases.
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Ribonucleic acid (RNA) is a linear molecule composed of four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U). ... RNA is synthesized from DNA by an enzyme known as RNA polymerase during a process called transcription.
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Although the nuclear DNA contains all of the information or codes necessary to make proteins, protein synthesis does not occur in the nucleus. Instead, an enzyme called RNA polymerase attaches to one end of a specific length of DNA and moves along the molecule making an RNA copy.
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In humans, the nucleus of each cell contains 3 × 109 base pairs of DNA distributed over 23 pairs of chromosomes, and each cell has two copies of the genetic material. ... The process by which DNA is copied to RNA is called transcription, and that by which RNA is used to produce proteins is called translation.
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What are the differences between DNA and RNA? While the sugar for DNA is deoxyribose, the sugar for RNA is simply ribose. DNA is double stranded, while RNA has a single strand. ... Transcription is the process by which DNA is copied into mRNA.
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Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). ... Although the mRNA contains the same information, it is not an identical copy of the DNA segment, because its sequence is complementary to the DNA template.
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DNA and RNA are different from their structure, functions, and stabilities. DNA has four nitrogen bases adenine, thymine, cytosine, and guanine and for RNA instead of thymine, it has uracil. Also, DNA is double-stranded and RNA is single-stranded which is why RNA can leave the nucleus and DNA can't.
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The transport of RNA molecules from the nucleus to the cytoplasm is fundamental for gene expression. The different RNA species that are produced in the nucleus are exported through the nuclear pore complexes via mobile export receptors.
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There are 2 nucleic acids -- DNA and RNA. Your cells make proteins by following the instructions encoded in your DNA, which is genetic material and a type of nucleic acid. Other nucleic acids, various types of RNA, assist in the protein-production process.
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How are rRNA and tRNA formed? There are several genes in the genome for both ribosomal RNA (rRNA) and transfer RNA (tRNA). When more is needed, an RNA polymerase (RNAP) first transcribes a gene (from DNA) to rRNA or tRNA, which remains in the nucleus.
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['Messenger RNA is single-stranded RNA.', 'The mRNA carries genetic information from DNA to ribosome present in the cytosol, where it is used as a template for protein synthesis.', 'Messenger RNA is furnished with genetic code (message) as the sequence of codons.', "The message of mRNA is read consecutively in 5' to 3' direction."]