Molecular Genetics - Lake Travis Independent School District
... The “language” of mRNA is sometimes called the genetic code. The genetic code is read 3 letters (or bases) at a time, called codons. A codon is made up of 3 nucleotides that specify for a single amino acid Amino acids are strung together to form proteins (polypeptides) ...
... The “language” of mRNA is sometimes called the genetic code. The genetic code is read 3 letters (or bases) at a time, called codons. A codon is made up of 3 nucleotides that specify for a single amino acid Amino acids are strung together to form proteins (polypeptides) ...
Heredity and Genes
... In humans, genes make up only 2% of DNA. These genes all code for proteins. The rest is “non coding DNA” which may or may not have a purpose. We don’t know what it does yet. So, not all DNA codes for proteins. ONLY genes code for proteins. ...
... In humans, genes make up only 2% of DNA. These genes all code for proteins. The rest is “non coding DNA” which may or may not have a purpose. We don’t know what it does yet. So, not all DNA codes for proteins. ONLY genes code for proteins. ...
DNA Review Cards
... potential least effect on the protein. Describe the process of transcription. What is a mutagen? What is the primary enzyme in transcription. Give examples of mutagens. What type of cell must a mutation occur in to be passed on to offspring? ...
... potential least effect on the protein. Describe the process of transcription. What is a mutagen? What is the primary enzyme in transcription. Give examples of mutagens. What type of cell must a mutation occur in to be passed on to offspring? ...
Chapter 8
... 8.1 DNA and the Importance of Proteins 1. What is a gene? A gene must be able to make copies of itself; mutate; store information that determines the characteristics of a cell; use this information synthesize proteins. 2. What four functions are performed by nucleic acids? 1) store information that ...
... 8.1 DNA and the Importance of Proteins 1. What is a gene? A gene must be able to make copies of itself; mutate; store information that determines the characteristics of a cell; use this information synthesize proteins. 2. What four functions are performed by nucleic acids? 1) store information that ...
CH 9 cont
... These complementary bases were A bonded w/ ____ G bonded w/ _______ II. DNA REPLICATION What is it? __________ When does it occur? _____ Where does it occur ______? See p 286 and Draw ...
... These complementary bases were A bonded w/ ____ G bonded w/ _______ II. DNA REPLICATION What is it? __________ When does it occur? _____ Where does it occur ______? See p 286 and Draw ...
Protein synthesis
... DNA directly controls the manufacture of proteins within in a cell through a process called protein synthesis. In this activity your guidance is needed to help this along. You will construct a protein by first reading the DNA creating a strand of mRNA. Next you will follow the mRNA to the ribosome w ...
... DNA directly controls the manufacture of proteins within in a cell through a process called protein synthesis. In this activity your guidance is needed to help this along. You will construct a protein by first reading the DNA creating a strand of mRNA. Next you will follow the mRNA to the ribosome w ...
Section 8.4: Transcription
... Replication allows for reproduction Replication only occurs once per cell cycle Transcription is need to respond to the environment Transcription occurs over and over in a cell on a ...
... Replication allows for reproduction Replication only occurs once per cell cycle Transcription is need to respond to the environment Transcription occurs over and over in a cell on a ...
Unfinished Material - Answer Key
... with the introns; however, the same primary RNA transcript can yield more than one kind of mature, processed mRNA, consisting of different combinations of exons. - If you have a different combination of exons, therefore different combinations of mRNA, then the polypeptides translated will be differe ...
... with the introns; however, the same primary RNA transcript can yield more than one kind of mature, processed mRNA, consisting of different combinations of exons. - If you have a different combination of exons, therefore different combinations of mRNA, then the polypeptides translated will be differe ...
When Is a Genome Project Finished?
... 4. What is the name of the gene prediction method that uses a statistical analysis of the nucleotide base sequence to determine likely locations for genes, including the position of exons and introns? ________________________________________________________________________ 5. What is the name of the ...
... 4. What is the name of the gene prediction method that uses a statistical analysis of the nucleotide base sequence to determine likely locations for genes, including the position of exons and introns? ________________________________________________________________________ 5. What is the name of the ...
No Slide Title
... What is the difference between eukaryotes and prokaryotes for the number of orgins for DNA replication? ...
... What is the difference between eukaryotes and prokaryotes for the number of orgins for DNA replication? ...
Chapter 25
... 2. Leucine zippers --- Amino acid sequence contains 7-residue pseudo-repeat (a-b-c-d-e-fg)n, in which a and d are hydrophobic and Lue residue, respectively. These sections form αhelices and a and d residues of two parallel α-helices interact with each other as a zipper. Posttranscriptional processin ...
... 2. Leucine zippers --- Amino acid sequence contains 7-residue pseudo-repeat (a-b-c-d-e-fg)n, in which a and d are hydrophobic and Lue residue, respectively. These sections form αhelices and a and d residues of two parallel α-helices interact with each other as a zipper. Posttranscriptional processin ...
Chapter 19 Nucleic Acids
... Ribosomal RNA Processing • Ribosomal RNA in all organisms are produced as large primary transcripts that require processing • Processing includes methylation and cleavage by endonucleases • Prokaryotic rRNA primary transcripts ~30S • Contain one copy each: 16S, 23S, 5S rRNA ...
... Ribosomal RNA Processing • Ribosomal RNA in all organisms are produced as large primary transcripts that require processing • Processing includes methylation and cleavage by endonucleases • Prokaryotic rRNA primary transcripts ~30S • Contain one copy each: 16S, 23S, 5S rRNA ...
Eukaryotic Gene Expression
... • Explain why gene expression control is necessary in a eukaryotic cell? • Describe how expression is regulated in before & during transcription? • Tell me what differentiation is? Euchromatin? A silencer sequence? • Explain how gene expression regulation is different in eukaryotes/prokaryotes? ...
... • Explain why gene expression control is necessary in a eukaryotic cell? • Describe how expression is regulated in before & during transcription? • Tell me what differentiation is? Euchromatin? A silencer sequence? • Explain how gene expression regulation is different in eukaryotes/prokaryotes? ...
Recombinant DNA Technology
... Proteins that have an inactive form after synthesis are activated by removal of a small number of amino acids. ...
... Proteins that have an inactive form after synthesis are activated by removal of a small number of amino acids. ...
Chapter 17 * from gene to protein
... strand is the template and then transcription factors help RNA polymerase bind. The TATA box is an important part of the promoter that helps initiate transcription. The transcription complex consists of the promoter, transcription factors, and RNA polymerase. RNA polymerase separates the DNA strands ...
... strand is the template and then transcription factors help RNA polymerase bind. The TATA box is an important part of the promoter that helps initiate transcription. The transcription complex consists of the promoter, transcription factors, and RNA polymerase. RNA polymerase separates the DNA strands ...
Unit Study Guide
... What is the role of DNA Helicase in the processes of replication and transcription? What is made at the end of transcription? Why does transcription have to take place; in other words, why is mRNA made? What is the role of the enzyme RNA polymerase in the process of transcription? Where does the mRN ...
... What is the role of DNA Helicase in the processes of replication and transcription? What is made at the end of transcription? Why does transcription have to take place; in other words, why is mRNA made? What is the role of the enzyme RNA polymerase in the process of transcription? Where does the mRN ...
Mutations and Their Significance
... • 1. RNA Polymerase binds to DNA and separates the DNA strands • 2. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA • 3. Sequences of DNA that are not involved in coding for proteins are introns • 4. The DNA sequences that code for proteins are called ...
... • 1. RNA Polymerase binds to DNA and separates the DNA strands • 2. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA • 3. Sequences of DNA that are not involved in coding for proteins are introns • 4. The DNA sequences that code for proteins are called ...
DNA - Ellis Benjamin
... – Messenger RNA (mRNA) – carries info. specific to a protein, 3 RNA bases form a codon specifying an amino acid – Ribosomal RNA (rRNA) – combines with proteins to form a ribosome – Transfer RNA (tRNA) – carries specific amino acid to ribosome ...
... – Messenger RNA (mRNA) – carries info. specific to a protein, 3 RNA bases form a codon specifying an amino acid – Ribosomal RNA (rRNA) – combines with proteins to form a ribosome – Transfer RNA (tRNA) – carries specific amino acid to ribosome ...
Genetic Basis of Development
... Cells of zygote undergo rounds of mitosis to form stem cells (cells that are not yet differentiated and have the potential to develop into any type of cell) Based on their location in developing zygote, stem cells produce particular proteins (i.e. transcription factors) which tell the surrounding ce ...
... Cells of zygote undergo rounds of mitosis to form stem cells (cells that are not yet differentiated and have the potential to develop into any type of cell) Based on their location in developing zygote, stem cells produce particular proteins (i.e. transcription factors) which tell the surrounding ce ...
Clark: Biotechnology, 2nd Edition Chapter 2: DNA, RNA, and Protein
... a. Many mitochondrial and chloroplast proteins are encoded in the nucleus. b. They are found inside eukaryotic cells, just like all bacteria. *c. They contain ribosomes that are similar in size to prokaryotic ribosomes. d. They use a genetic code that is completely different than prokaryotes or euka ...
... a. Many mitochondrial and chloroplast proteins are encoded in the nucleus. b. They are found inside eukaryotic cells, just like all bacteria. *c. They contain ribosomes that are similar in size to prokaryotic ribosomes. d. They use a genetic code that is completely different than prokaryotes or euka ...
Primary transcript
A primary transcript is the single-stranded ribonucleic acid (RNA) product synthesized by transcription of DNA, and processed to yield various mature RNA products such as mRNAs, tRNAs, and rRNAs. The primary transcripts designated to be mRNAs are modified in preparation for translation. For example, a precursor messenger RNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing.There are several steps contributing to the production of primary transcripts. All these steps involve a series of interactions to initiate and complete the transcription of DNA in the nucleus of eukaryotes. Certain factors play key roles in the activation and inhibition of transcription, where they regulate primary transcript production. Transcription produces primary transcripts that are further modified by several processes. These processes include the 5' cap, 3'-polyadenylation, and alternative splicing. In particular, alternative splicing directly contributes to the diversity of mRNA found in cells. The modifications of primary transcripts have been further studied in research seeking greater knowledge of the role and significance of these transcripts. Experimental studies based on molecular changes to primary transcripts the processes before and after transcription have led to greater understanding of diseases involving primary transcripts.