DNA
... DNA unwinds and unzips with help of DNA helicases These enzymes break the hydrogen bonds between base pairs. This point is called the replication fork. 5’ Parental DNA Molecule ...
... DNA unwinds and unzips with help of DNA helicases These enzymes break the hydrogen bonds between base pairs. This point is called the replication fork. 5’ Parental DNA Molecule ...
Enzyme and DNA Practice MULTIPLE CHOICE
... 3) The area on the enzyme that interacts with the substrate is called the: A) regulatory site B) modulator site C) active site D) allosteric site ...
... 3) The area on the enzyme that interacts with the substrate is called the: A) regulatory site B) modulator site C) active site D) allosteric site ...
gene-expression-text
... In bacteria, the mRNA is nice and ready to make proteins (i.e. being translated) as soon as it is produced; ...
... In bacteria, the mRNA is nice and ready to make proteins (i.e. being translated) as soon as it is produced; ...
Herpes Simplex Virus Lec. 7
... • Viral DNA is circularized once inside nucleus • Viral DNA is localized in regions referred to as ND10 (nuclear domain 10) • Viral genes transcribed by cellular RNA Poly II • Gene expression divided into 4 groups • Group occurs within hours of viral infection (these genes also referred to as “imm ...
... • Viral DNA is circularized once inside nucleus • Viral DNA is localized in regions referred to as ND10 (nuclear domain 10) • Viral genes transcribed by cellular RNA Poly II • Gene expression divided into 4 groups • Group occurs within hours of viral infection (these genes also referred to as “imm ...
Unit 4 Mitosis, Meiosis and cell regulation
... Know the number of chromosomes at any point in the cell cycle for humans for meiosis or mitosis ...
... Know the number of chromosomes at any point in the cell cycle for humans for meiosis or mitosis ...
2015 Chaffey College Poster
... DNA barcodes allow idenHficaHon of individual fish due to part of the genes staying the same among fish species, and part of the gene being highly variable causing the fish to express different traits ...
... DNA barcodes allow idenHficaHon of individual fish due to part of the genes staying the same among fish species, and part of the gene being highly variable causing the fish to express different traits ...
The Secret Code of Life: - Richmond School District
... nucleotides form a triplet which, when in a gene, codes for a part of a protein. There are 34 total different triplets that can be created but only 20 different amino acids. (Would a doublet code work just as well?? i.e. only 2 nucleotides to represent 20 amino acids. Why are there a lot of codes th ...
... nucleotides form a triplet which, when in a gene, codes for a part of a protein. There are 34 total different triplets that can be created but only 20 different amino acids. (Would a doublet code work just as well?? i.e. only 2 nucleotides to represent 20 amino acids. Why are there a lot of codes th ...
“The Nucleus: Not Just a Sack of Chromosomes”
... Typically located in the centre of the cell Most eukaryotic cells possess one nucleus, although the cells of fungi and some other groups may have several nuclei. ...
... Typically located in the centre of the cell Most eukaryotic cells possess one nucleus, although the cells of fungi and some other groups may have several nuclei. ...
Section D - Prokaryotic and Eukaryotic Chromosome Structure
... • Some genes contain terminator sequences requiring an accessory factor, the rho protein (ρ) to mediated transcription termination. • Rho binds to specific sites in the singlestranded RNA. • Rho protein (hexameric protein) binds to certain RNA structure (72bp) • Rho hydrolyses ATP and moves along th ...
... • Some genes contain terminator sequences requiring an accessory factor, the rho protein (ρ) to mediated transcription termination. • Rho binds to specific sites in the singlestranded RNA. • Rho protein (hexameric protein) binds to certain RNA structure (72bp) • Rho hydrolyses ATP and moves along th ...
Modern Genetics Notes
... pieces of RNA that do not code for any protein. These noncoding regions that are removed are called introns (intervening sequences). The remaining portions, exons (expressed sequences or coding regions), are pieced back together to form the final transcript. As a result of this processing, the mRNA ...
... pieces of RNA that do not code for any protein. These noncoding regions that are removed are called introns (intervening sequences). The remaining portions, exons (expressed sequences or coding regions), are pieced back together to form the final transcript. As a result of this processing, the mRNA ...
This exam is worth 50 points Evolutionary Biology You may take this
... (C) humans (D) domestic species (E) other members of the same species. 29. As adults, humans have a vestige of a tail. It is called the (A) lanugo (B) vermiform (C) placenta (D) coccyx (E) cladogram. 30. During their early stages of development, the embryos of fish, reptiles, birds and mammals look ...
... (C) humans (D) domestic species (E) other members of the same species. 29. As adults, humans have a vestige of a tail. It is called the (A) lanugo (B) vermiform (C) placenta (D) coccyx (E) cladogram. 30. During their early stages of development, the embryos of fish, reptiles, birds and mammals look ...
Lecture 4
... • Also, by comparing multiple species we can make inferences about sets of species. • How do we compare DNA or protein sequences of two different species? ...
... • Also, by comparing multiple species we can make inferences about sets of species. • How do we compare DNA or protein sequences of two different species? ...
Controlling Gene Expression
... • Transcription is normally off • Repressor is active (fits into operator) • Need an outside molecule from environment to inactivate repressor • Inducer has the role of inactivating repressor • Proteins produced through transcription are enzymes. • Enzymes break down inducer. • Inducer is absent wh ...
... • Transcription is normally off • Repressor is active (fits into operator) • Need an outside molecule from environment to inactivate repressor • Inducer has the role of inactivating repressor • Proteins produced through transcription are enzymes. • Enzymes break down inducer. • Inducer is absent wh ...
NATIONAL BRAIN RESEARCH CENTRE(NBRC) NH-8, Manesar-122050, HARYANA
... One star is going away from the Earth. Then the observer on the Earth will experience: (1) Decrease in wave length (3) No change in wave length ...
... One star is going away from the Earth. Then the observer on the Earth will experience: (1) Decrease in wave length (3) No change in wave length ...
Deciphering the Structure of the Hereditary Material
... vigorous seed develops into males and weak seed produces females. Later, sperm cells were examined in the light microscope. It was ‘observed’ that each contains a tiny pre-formed child, termed the homunculus [homunculus in italics]. The mother was considered to merely incubate the homonculus, who em ...
... vigorous seed develops into males and weak seed produces females. Later, sperm cells were examined in the light microscope. It was ‘observed’ that each contains a tiny pre-formed child, termed the homunculus [homunculus in italics]. The mother was considered to merely incubate the homonculus, who em ...
AP Biology - cloudfront.net
... QUESTIONS – Section 11.4: Post Transcriptional Control of Gene Expression 26. List the various modifications that must be made to an mRNA before it can leave the nucleus. ...
... QUESTIONS – Section 11.4: Post Transcriptional Control of Gene Expression 26. List the various modifications that must be made to an mRNA before it can leave the nucleus. ...
electroporation of a - The Steve Clough Lab
... 5. Apply a single 2.5kV electrical pulse (field strength of 12.5 kV/cm) by simultaneously pressing both red buttoms on face of gene pulser. Pulser will beep when finished. Time reading ideally will be above 9.3, but lower values may still be ok. Time will be lower the more salt (remember that DNA is ...
... 5. Apply a single 2.5kV electrical pulse (field strength of 12.5 kV/cm) by simultaneously pressing both red buttoms on face of gene pulser. Pulser will beep when finished. Time reading ideally will be above 9.3, but lower values may still be ok. Time will be lower the more salt (remember that DNA is ...
EXAM 2
... 35. Any change in the chemical composition of DNA is a _mutation______________. 36. An alteration in the DNA composition that is not passed on to the subsequent genereation is referred to as _somatic______________, while those that can be passed on are referred to as _gametic___________. 37. An alte ...
... 35. Any change in the chemical composition of DNA is a _mutation______________. 36. An alteration in the DNA composition that is not passed on to the subsequent genereation is referred to as _somatic______________, while those that can be passed on are referred to as _gametic___________. 37. An alte ...
B2 Topic 1: The building blocks of cells Light microscope Light
... have a cell wall: different to the cell wall in plants – not made of cellulose, and it is more flexible provides support and shape for bacterium (some) have flagella on the outside: These are long, whip-like structures that bacteria can use to move themselves along. Tail like structure. DNA Se ...
... have a cell wall: different to the cell wall in plants – not made of cellulose, and it is more flexible provides support and shape for bacterium (some) have flagella on the outside: These are long, whip-like structures that bacteria can use to move themselves along. Tail like structure. DNA Se ...
LDL receptors
... in a very short time. Denaturation at 94°C : During the denaturation, the double strand melts open to single stranded DNA. Annealing at 50-65°C : The primers are annealed. extension at 72°C : This is the ideal working temperature for the polymerase. The polymerase adds dNTP's from 5' to 3', reading ...
... in a very short time. Denaturation at 94°C : During the denaturation, the double strand melts open to single stranded DNA. Annealing at 50-65°C : The primers are annealed. extension at 72°C : This is the ideal working temperature for the polymerase. The polymerase adds dNTP's from 5' to 3', reading ...
Structure,Function of RNA
... CHARACTERS 1. m-RNA transcribed from DNA carrying information for protein synthesis 2. Comprises only 5% of the cellular RNA 3. Most heterogeneous in size and base sequence ...
... CHARACTERS 1. m-RNA transcribed from DNA carrying information for protein synthesis 2. Comprises only 5% of the cellular RNA 3. Most heterogeneous in size and base sequence ...
Regulation of Gene Expression
... Regulation of Gene Expression (Chapter 7) Reading Guide 1. Why is it important for bacterial cells to be able to regulate gene expression? Provide an example. ...
... Regulation of Gene Expression (Chapter 7) Reading Guide 1. Why is it important for bacterial cells to be able to regulate gene expression? Provide an example. ...
Lecture 1
... DNA duplexes that are organized into several chromosomes within the nucleus. • Consist of long continuous DNA molecule associated with small basic proteins called histones. • In eukarotic cells, there are normally two copies of each chromosome (homologous pairs) in every somatic cell. ...
... DNA duplexes that are organized into several chromosomes within the nucleus. • Consist of long continuous DNA molecule associated with small basic proteins called histones. • In eukarotic cells, there are normally two copies of each chromosome (homologous pairs) in every somatic cell. ...
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.