A. RNA doesn’t have thymine. RNA uses Uracil. RNA can leave the nucleus.
B. mRNA- mRNA is called the messenger DNA. This RNA can leave the nucleus and delivers information to other parts of the cell.
tRNA- Transfers amino acids to proteins.
Ribosomal RNA- Forms parts of ribosomal subunits
C. Proteins must be synthesised constantly in order to use the codes from genes over and over again.
2. A. During transcription, the enzyme RNA polymerase binds to DNA and separates the DNA strands. It then uses one strand of DNA as a template to assemble nucleotides into a complementary strand of RNA.
B. If the introns didn’t get removed then the instructions from mRNA might be wrong, affecting the protein.
A. You read the codon, or three bases except…
“However, the DNA-dependent RNA polymerase proved elusive until 1960, when it was independently identified in bacteria by Hurwitz and Stevens and in plants by the Bonner group” (p. 8325). There were also many experiments after these in which the scientists focused mostly on the mechanisms of the RNA polymerization (Kireeva, 2013). Kireeva also stated in her article that a group called the Chamberlin group focused on the pauses by E. coli RNA polymerase the group also focused on the…
Things All RNA Epigenetics can do:
Variegated structural, catalytic, regulatory activities, translation of genes to proteins
Variegated RNAs to interact with other cellular machinery (DNA, Proteins, etc.) in specific ways
Alteration of RNA structure which in turn, leads to alteration of protein bindings and cellular effects
Affect gene expression by activating or silencing it
Controls transition from pluripotency state to differentiation, which allows different types of cells to be made and…
the structure of messenger rna :
Messenger RNA functions as the template for protein synthesis it carries genetic
information from DNA to a ribosome and helps to assemble amino acids in their correct
order. Each amino acid in a protein is specified by a set of three nucleotides in the
mRNA, called a codon. Both prokaryotic and eukaryotic mRNAs contain three
primaryregions .The 5 untranslated region is a sequence of nucleotides that is at the 5
end of the mRNA and does not code for…
1) The major difference between these two is that the RNA viruses have RNA in their genome while the DNA viruses have DNA in their genome. Both the DNA and RNA cannot be found in the same virus. RNA virus first adsorbs to the host cell surface. Then the attached virus fuses with the endosome membrane. Unlike RNA viruses, DNA viruses pass their DNA into the nucleus of the host cell and not into the cytoplasm of the host cell.
2) Lysis: refers to the breaking down of the membrane of a cell, often…
made up of smaller units called nucleotides. These nucleotides play a significant role in creating important structures found in our body such as deoxyribonucleic acid, more commonly referred to as DNA, and ribonucleic acid or RNA. (Erster, Lecture 4 Chapter 5) Ribonucleic acid is then categorized into two types of RNA: mRNA and tRNA (there are other types but the ones mainly discussed in protein synthesis only involved these two). The DNA and RNA are partners that work together to make protein…
transcriptional machinery of RNA Polymerase I in the oocyte
Aim1: To address the roles of the Hira complex in rRNA transcription and embryonic development
The Hira histone chaperone complex is an evolutionarily conserved complex, which is composed of Hira, Ubn1 and Cabin1, and cooperates with the histone chaperone Asf1a to mediate H3.3-specific binding and chromatin deposition12,13. I previously demonstrated the critical roles of maternal Hira /H3.3 on paternal…
The purpose of replication is to conserve the entire genome for next generation.
The purpose of transcription is to make RNA copies of individual genes that the cell can use in the biochemistry.
DNA replication is the replication of a strand of DNA into two daughter strands, each daughter strand contains half of the original DNA double helix.
Uses the genes as templates to produce several functional forms of RNA
This paper is going to describe the replication of DNA and RNA and the processes of transcription and translation of protein synthesis.
What is DNA? DNA is a nucleic acid that carries the genetic information in cells and some viruses, consisting of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. DNA sequences are replicated by the cell prior to cell division and may include genes,…
The relationship between central dogma and a genetic code
The vital sequence of different processes that transfers the genetic code from DNA via mRNA to finally form the functional product (finished proteins) together forms the central dogma of modern molecular biology. Thus, the genetic code is the basis of the central dogma of molecular biology. Central dogma is nothing but the flow of genetic information in all living cells including human cells from DNA to RNA to proteins.
The central dogma…