How are RNA molecules produced?
How are RNA molecules produced?
RNA is synthesized from DNA by an enzyme known as RNA polymerase during a process called transcription. The new RNA sequences are complementary to their DNA template, rather than being identical copies of the template. RNA is then translated into proteins by structures called ribosomes.
Where are RNA molecules produced?
nucleolus
Three of the rRNA molecules are synthesized in the nucleolus, and one is synthesized elsewhere. In the cytoplasm, ribosomal RNA and protein combine to form a nucleoprotein called a ribosome. The ribosome binds mRNA and carries out protein synthesis. Several ribosomes may be attached to a single mRNA at any time.
What stage produces RNA?
Transcription: the production of messenger RNA (mRNA) by the enzyme RNA polymerase, and the processing of the resulting mRNA molecule.
Is RNA the same as DNA?
Like DNA, RNA is made up of nucleotides. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
What is the most variable class of RNA?
mRNA
mRNA is the most variable class of RNA, and there are literally thousands of different mRNA molecules present in a cell at any given time. Some mRNA molecules are abundant, numbering in the hundreds or thousands, as is often true of transcripts encoding structural proteins.
How are RNA molecules produced during the process of DNA?
During the process of _______________ RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA. The enzyme that uses one strand of DNA as a template to assemble nucleotides into a strand of RNA is called…
What happens in the process of transcription of DNA?
What happens in the process of transcription? RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA. What are 3 steps in transcription? 1. Enzyme unzips DNA molecule at the 5′ end
How does mRNA get its code from DNA?
1. Enzyme unzips DNA molecule at the 5′ end 2. MRNA gets code from DNA 3. DNA zips back up and MRNA leaves nucleus with the code. Nice work! You just studied 78 terms!
How many strands of DNA are produced by replication?
1. ur. g D A replication, the DNA molecule (separate /combines) into two strands end of DNA replication, ds of DNA have been produced, giving a total of (four/ six) strands of DNA. (four two ew 3. ew DNA is replicated in strands complementary to old DNA because production of new DNA follows the rules of double helix).