• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
385 Genetic Transformation : a Retrospective
385 Genetic Transformation : a Retrospective

... manner, and his devotion to his job, made him a lovable personality to those few who got to know him. Outside his work he found his pleasure in ski-ing and in walking on the Sussex downs where he had built a cottage. Like his elder brother Stanley, who died only a few days before him, he was a medic ...
A Variant within the DNA Repair Gene XRCC3 Is
A Variant within the DNA Repair Gene XRCC3 Is

... ing mechanism for the genetic basis of not only malignant melanoma, but of other types of cancer as well. To date there are no studies relating to how the XRCC3 polymorphism in position 18067 of exon 7 affects the overall function of the protein. The polymorphism results in an amino acid substitutio ...
MUTATIONS
MUTATIONS

S4O3 Pretest 2015-2016
S4O3 Pretest 2015-2016

... b. only one amino acid will change c. nearly every amino acid in the protein will be changed d. translation will not occur ____ 20. A DNA segment is changed from -AATTAGAAATAG- to -ATTAGAAATAG-. This is a ____. a. frameshift mutation c. inversion b. insertion d. translation ____ 21. Where would a DN ...
Loci sarA and/or agr by the Genes Regulated Staphylococcus
Loci sarA and/or agr by the Genes Regulated Staphylococcus

... Information about commercial reprint orders: http://journals.asm.org/site/misc/reprints.xhtml To subscribe to to another ASM Journal go to: http://journals.asm.org/site/subscriptions/ ...
Lesson Plan 1A-3: Genetic Variation and the Malaria
Lesson Plan 1A-3: Genetic Variation and the Malaria

... 1. Introduce the activity by asking students to remember past learning in biology, and identify the ultimate source of genetic variation in all organisms. Students should recognize that the ultimate source of genetic variation is differences in DNA sequences. 2. Explain that in this activity, studen ...
Analysis of Similarities/Dissimilarities of DNA Sequences Based on a
Analysis of Similarities/Dissimilarities of DNA Sequences Based on a

... -501that most of the 11 sequences are rich in dinucleotide of TG, while lack of TA and CG, information of other dinucleotides can also be inspected intuitively according to the colorbar. In addition, we can see that Gorilla and Chimpanzee have the most similar compositions and densities of dinucleo ...
Expressing_CENH3_Orthologs
Expressing_CENH3_Orthologs

Top Ten Ways to Ensure Valid RNAi Data
Top Ten Ways to Ensure Valid RNAi Data

... single nucleotide mismatch in the middle of an siRNA can abolish its activity [1,2]. In contrast, another report indicates that siRNAs can silence non-target genes containing as few as 14–15 consecutive complementary nucleotides [3]. Therefore, until we reach a better understanding of siRNA specific ...
Document
Document

... increased in the escitalopramtreated groups • mRNA level of the FSL-Esc group was not statistically different from FRL ...
unit 4 revision
unit 4 revision

... 1. Describe the DNA replication process. 2. When does replication occur in the life cycle of the cell? 3. Compare DNA replication and PCR by listing the similarities and differences between the two processes. 4. Why is meiosis significant to sexually reproducing organisms? 5. Compare Meiosis and Mit ...
INTRODUCTOR Y BIOTECHNOLOGY (ABG 504) THEORETICAL MODULE  BY
INTRODUCTOR Y BIOTECHNOLOGY (ABG 504) THEORETICAL MODULE BY

... structure (i.e., shaped like a corkscrew).[18][19] Their double-helix model had two strands of DNA with the nucleotides pointing inward, each matching a complementary nucleotide on the other strand to form what looks like rungs on a twisted ladder.[20] This structure showed that genetic information ...
DNA shuffling by random fragmentation and reassembly: In
DNA shuffling by random fragmentation and reassembly: In

... The whole 2.7-kb plasmids containing these same LacZmarkers were also efficiently reassembled from random 100to 200-bp fragments. For reassembly of fragments derived from whole plasmids the theoretical end point is a single, large concatemeric molecule. As expected, concatemers of >20 kb were obtain ...
Why there is more to protein evolution than protein function: splicing
Why there is more to protein evolution than protein function: splicing

... we briefly review evidence suggesting that this protein function-centred view is too simplistic. In particular, we concentrate on how selection acting during the protein’s production history can also affect protein evolutionary rates and amino acid choice. Exploring the role of selection at the DNA a ...
Plasmid Sex Introduction .....In most bacteria there are several
Plasmid Sex Introduction .....In most bacteria there are several

... bacterial cells take up DNA from the surrounding environment. Certain requirements exist in order for transformation to take place. First, exogenous DNA must be present in the immediate environment. Bacteria must have mechanisms that allow the DNA to be taken up through the bacterial cell walls. Als ...
Two Anthranilate Synthase Genes in Arabidopsis
Two Anthranilate Synthase Genes in Arabidopsis

... ASAl and ASA2 are shown in Figure 4. For each gene, protein translation was assumed to begin at the first AUG codon downstream of the transcription start site(s). The ASAl gene is capable of encoding a protein of 595 amino acids with calculated molecular mass of 66212 D; ASA2 can encode a 69711-D pr ...
Lab Recap: Miniprep (MP)
Lab Recap: Miniprep (MP)

... So now you have you can just pour out the supernatant into another tube and call  that your plasmid DNA right? WRONG. You might still have some cellular junk in your  supernatant, so you have to find out a way to make sure that your miniprep is completely  plasmid DNA. So, you will pour the supernat ...
Trans-HHS Workshop: Diet, DNA Methylation
Trans-HHS Workshop: Diet, DNA Methylation

... These findings indicate that the MTHFR C677T polymorphism influences DNA methylation status through an interaction with folate status. Nutrients and gene-specific DNA methylation Gene-specific DNA methylation at the promoter region. Approximately one-half of human genes have CpG islands in their 5⬘- ...
Novel Imprinted DLK1/GTL2 Domain on Human Chromosome 14
Novel Imprinted DLK1/GTL2 Domain on Human Chromosome 14

... epidermal growth factor (EGF) repeat motifs closely related to those present in the delta/notch/serrate family of signaling molecules. The paternal expression, chromosomal localization, and biological function of DLK1 also make it a likely candidate gene for the callipyge phenotype in sheep. Many of ...
MicroRNAs: key participants in gene regulatory networks
MicroRNAs: key participants in gene regulatory networks

... of other heterochronic genes, and regulate the translation directly and negatively by antisense RNA–RNA interaction [14,15]. Mutations in lin-4 or let-7 causes temporal transformations in cell fates with omission or reiteration of stage-specific events [14,15]. Studies of lin-4 indicated that the st ...
Supercoils in plant DNA: nucleoid
Supercoils in plant DNA: nucleoid

... observed under u.v. illumination; the presence of the two bands was confirmed upon automated fractionation of the gradients (Fig. 1). The same phenomenon was observed with nuclei from all other maize tissues tested (dry embryos, root tip meristems, leaves) and more importantly with nuclei isolated f ...
Evolution of the fibrinogen γ′ chain: implications for the binding of
Evolution of the fibrinogen γ′ chain: implications for the binding of

... [5,6], or in this case non-splicing. The result in humans is a c chain 20 residues longer than the more usual spliced form. The extension is markedly anionic, in part because of two sulfated tyrosines [7] that have been implicated in binding to thrombin. Interestingly, mouse fibrin does not bind thro ...
High-throughput cloning of eukaryotic open reading frames (ORFs
High-throughput cloning of eukaryotic open reading frames (ORFs

... the predicted gene model Tabulated below are the results of the DNA sequence analyses of our Arabidopsis entry clones. The sequence actions are the actions entered into our LIMS. The sequence + action means there is no difference between the sequence of our clone and the sequence of the gene model p ...
View PDF - Molecular Systems Biology
View PDF - Molecular Systems Biology

... © European Molecular Biology Organization ...
No Slide Title
No Slide Title

... molecules into suitable host 3) identify hosts which have taken up your recombinant molecules 4) Extract DNA ...
< 1 ... 75 76 77 78 79 80 81 82 83 ... 498 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report