• 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
Chapter 18 Gene Expression and Protein Synthesis
Chapter 18 Gene Expression and Protein Synthesis

... structural gene is made of exons and introns. • A regulatory gene that controls transcription; the regulatory gene is not transcribed but has control elements, one of which is the promoter. A promoter is unique to each gene. • There is always a sequence of bases on the DNA strand called an initiatio ...
Punnett Square
Punnett Square

... Hair color is a perfect example of a trait What color hair should their children have? Prince Charming is blond ...
Biochemistry 6: Model Organisms
Biochemistry 6: Model Organisms

... evolved from an ancestral cell that existed more than 3 billion years ago.  All cells grow, convert energy from one form to another, sense and respond to their environment, and reproduce themselves.  All cells are enclosed by a plasma membrane that separates the inside of the cell from the environ ...
SBI4U- Molecular Genetics
SBI4U- Molecular Genetics

... c) The beginning of the coding region is not where transcription would begin. Highlight a sequence that you would hypothesize would be close to where transcription would start. Provide a rationale for your answer. (2 marks) Any sequence resembling a TATA sequence- these sequences make it easier for ...
Chapter 18 Genes and Medical Genetics
Chapter 18 Genes and Medical Genetics

... • Charles Darwin thought inheritance was a matter of blending phenotypic characteristics (didn’ (didn’t know about genes) • blending would be bad news for natural selection, since any advantageous evolutionary trait would be diluted out through subsequent generations • Gregor Mendel sorted it out an ...
Exercise1_2015
Exercise1_2015

... Describe Entrez Gene, briebly! Retrieve human entries related to "prion protein" in Entrez Gene. Identify the gene for prion protein (PRNP). Name the map location of this gene on the human genome. What is the function of this protein? What are the alternate gene symbols? Name the phenotypes associat ...
Chromosomal Mapping of Murine c-fes and c
Chromosomal Mapping of Murine c-fes and c

... determined, and the resemblance to one parental strain or the other is ascertained, resulting in a strain distribution pattern (SDP) for a given genetic locus (see Table 1). (iii) The newly determined SDP is compared with SDPs of previously mapped genes to ascertain the degree of linkage and, thus, ...
Genetic Drift
Genetic Drift

... INTRODUCTION Evolution is the process by which modern organisms have descended from ancient ancestors over long periods of time. It is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life. Evolution is often described as "descent with modific ...
Chapter 9: Tools for Analyzing Gene Expression
Chapter 9: Tools for Analyzing Gene Expression

... of biological functions and GFP has turned out to be that tool. Atsushi Miyawaki, Cell 135 (2008), p. 987 ...
Domain Three (3_genetics)
Domain Three (3_genetics)

... 1. Sexual reproduction results from the joining of two specialized sex cells called gametes. When a sperm and ovum combine to form a cell, what is this cell called? A. embryo B. fetus C. zygote D. baby 2. During translation, the tRNA anti-codon GGA codes for what amino acid? A. alanine B. tyrosine C ...
Activity #3a - Center for Occupational Research and Development
Activity #3a - Center for Occupational Research and Development

... In Activities #1 and #2, you learned the scientific basis for how DNA microarray technology works and how it can be used to illustrate variations in gene expression by examining the gene expression data from two mythological creatures. Different gene expression results in different characteristics. ...
Worksheet - Molecular Evolution
Worksheet - Molecular Evolution

... INTRODUCTION Evolution is the process by which modern organisms have descended from ancient ancestors over long periods of time. It is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life. Evolution is often described as "descent with modific ...
1. Cellular control Booklet [A2]
1. Cellular control Booklet [A2]

... The diagram on the next page shows the translation phase of protein synthesis. A single mRNA molecule can be ‘serviced’ by many ribosomes at the same time. Ribosomes are made up of a complex of ribosomal RNA (rRNA) and proteins. They exist as two separate sub-units until they are attracted to a bind ...
A gene expression analysis system for medical diagnosis
A gene expression analysis system for medical diagnosis

... SVM methods for classification into multiple classes – One vs one – One vs all – Directed Acyclic Graph (DAG) – Weston & Watkins – Cramer & Singer (Weston & Watkins, 1999; Platt, 2000; Yeang et al, 2001; Cramer & Singer, 2001; Hsu & Lin, 2002) ...
Practice Exam 2
Practice Exam 2

... 2. Eukaryotic transcription requires ____________ to occur. a. basal transcription factors binding a promoter in DNA b. histone modification (such as acetylation of histone lysines) to decondense chromatin c. activator proteins to bind to enhancers d. chromosome condensation 3. Eukaryotic mRNA molec ...
Genetics 321 - Western Washington University
Genetics 321 - Western Washington University

... proteins ...
Class4_Synthetic_Genetics
Class4_Synthetic_Genetics

... -30 different mutants X TET-promoter collection -found many interactions between dissimilar genes -claimed that there are five times as many “negative” genetic interactions for essential genes when compared to non-essential genes -however, the cause of this may be due to the fact that the TET strain ...
What is DNA?
What is DNA?

... gene. These are called single nucleotide polymorphisms (SNPs, pronounced “snips”). There are Estimated to be millions of SNPs in each person‟s DNA. Other types of variants are less common. Many genes contain sequences of bases that are repeated over and over. A common type of variant involves a chan ...
Exercise week 10, with answers File
Exercise week 10, with answers File

... reporter in specific tissues. This approach cannot directly prove a function for Gata1 in these cells, although it may provide indirect supporting evidence 4) Feed-forward loops in gene regulatory networks a. describe the behavior e.g. of AP-1 complexes or myogenic TFs such as MyoD to amplify their ...
Insight into Blindness
Insight into Blindness

... Define the term mutation and identify ways in which mutations may affect an organism   Identify the causes of mutations   Differentiate between somatic and gametic mutations and identify the potential effect of each of these.   Describe the effect of gene mutations; identify types of gene mutations  ...
3 - Fossilized.org
3 - Fossilized.org

... • Mutations are the raw material for evolution • In diploid and polyploid organisms, deleterious mutations may be masked by a functional gene copy ...
Biology 122, Spring 2014 Activities for the week of March 10
Biology 122, Spring 2014 Activities for the week of March 10

... G1>S checkpoint and the role of the retinoblastoma protein. Assignment 2. Write an essay describing the differences between oncogenes and tumor suppressor genes. Include in your essay explanations for why mutations in proto-oncogenes lead to tumor formation and why this can also be true for tumor su ...
The Nature of Bacteria
The Nature of Bacteria

... 1. Changes in transcription can rapidly change enzyme synthesis because of mRNA degradation 2. Most regulation operates at initiation of transcription 3. Genes are organized as transcriptional units called operons 4. RNA polymerase binds to the promoter of an operon and transcribes until it meets th ...
Comment on: Resistance gene naming and
Comment on: Resistance gene naming and

... We welcome the letter of Evans,1 which begins the conversation on resistance gene nomenclature in reply to our recent call for rationalization.2 Evans1 agrees that change is needed, but questions the cut-off of ≥2% difference at the DNA (and protein) level for assigning a new number as it ‘would lea ...
DNA and RNA Chapter 12
DNA and RNA Chapter 12

... Only a fraction of genes in a cell are expressed (made into RNA) at any given time. How does the cell decide which will be turned on and which will stay “silent”? ...
< 1 ... 1038 1039 1040 1041 1042 1043 1044 1045 1046 ... 1482 >

Gene



A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report