• 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
Implications of the Human Genome Project for Medical
Implications of the Human Genome Project for Medical

... as quickly as possible and has identified more than 2 million of these single nucleotide polymorphisms. Of particular interest are those common variants that influence gene function. A powerful set of technologies for studying gene expression is being developed and explored.17 These methodologies, w ...
Chapter 2 DNA to end Multiple Choice
Chapter 2 DNA to end Multiple Choice

... I. It occurs during interphase. II. It is semi-conservative. III. It is a stage in protein synthesis. A. I only B. II only C. I and II only D. I, II and III ...
Sources of Genetic Variation - University of Evansville Faculty Web
Sources of Genetic Variation - University of Evansville Faculty Web

... reproductive tissue occurs, doubling chromosome number • The hybrid will be able to make gametes because each chromosome has a homologue with which to synapse during meiosis • The union of gametes from this hybrid may give rise to a new species of interbreeding plants, reproductively isolated from b ...
Biochemistry 423 Final Examination
Biochemistry 423 Final Examination

... _____ The link between nucleotides in RNA and DNA is a phosphodiester bond. _____ A highly processive enzyme stays bound to its substrate as it catalyzes a sequence of reactions. _____ Thymine (rather than uracil) is found in DNA in order to ensure that chemical damage to DNA is repaired. _____ Prok ...
L.16.9
L.16.9

... the genetic code table to supply the missing amino acid sequence for Allele 1 based on the mRNA codons. (GGU AAA GCU CCU),(Gly, Lys, Ala, Pro) Iinstruct students to supply the missing mRNA sequence for Allele 2 in the space provided, and then use the genetic code table to supply the missing amino ac ...
Biology Standard 2 Test Prep
Biology Standard 2 Test Prep

... Biology Standard 2 (BiologyStandard2) 7. Artificial selection is human intervention allowing only the best organisms to produce offspring. How is this process most useful to humanity? A. It allows the development of new species not dependent on the environment. B. It allows geneticists to emphasize ...
E. Coli - mrkeay
E. Coli - mrkeay

... • DNA is neg. charged due to phosphate group • DNA already subjected to restriction enzymes (pieces of various sizes) are loaded in wells with a buffer solution containing glycerol (dye to view the DNA) • Larger fragments move through the agarose gel more slowly, smaller fragments move faster and fa ...
Topic 1 and 2 notes
Topic 1 and 2 notes

... ­ Heredity – passing of traits from parents to offspring ...
1 / (2N)
1 / (2N)

... How long will the coalescence process take? Simplest case: If pick two random gene copies, probability that the second is the same as the first is 1 / (2N). This is the probability that two alleles coalesce in previous generation. It follows that 1 - 1 / (2N) is the probability that two sequences w ...
Add Meiosis Vocabulary to notes
Add Meiosis Vocabulary to notes

... that contain double the amount of chromosomes than haploid cells  Usually called the “normal” number of chromosomes  Two copies of each gene ...
Genetics I Exam 5 Review Sheet - Poultry Science
Genetics I Exam 5 Review Sheet - Poultry Science

... 12. How do you figure out the map unit distance between two genes if the percentage linkage is over 20%? 13. Be able to place genes in order on a chromosome based on the number of testcross progeny. For instance, take genes A, B, and D. Perform two-factor crosses first involving genes A and B, then ...
21_Study Guide
21_Study Guide

... Most bacterial genomes have between 1 and 6 million base pairs (Mb); the genome of E. coli, for instance, has 4.6 Mb. Genomes of archaea are generally within the size range of bacterial genomes. Eukaryotic genomes tend to be larger: The genome of the single-celled yeast S. cerevisiae has about 13 Mb ...
SCIENTIFIC BACKGROUND OF GENETICS A
SCIENTIFIC BACKGROUND OF GENETICS A

... Base pairs bond the double helix together. The "beginning" of a strand of a DNA molecule is defined as 5'. The "end" of the strand of A DNA molecule is defined as 3'. The 5' and 3' terms refer to the position of the nucleotide base, relative to the sugar molecule in the DNA backbone. The two strand ...
WORKSHEET PATTERNS OF HEREDITY
WORKSHEET PATTERNS OF HEREDITY

... For each statement below, write true if the sentence is correct. If the sentence is incorrect, rewrite the sentence to make it right. 6. Traits controlled by more than two genes are said to have multiple alleles. 7. Multiple alleles can be studied only in individuals. 8. In humans there are 23 pairs ...
GEnES bEFoRE dnA
GEnES bEFoRE dnA

... widely shared by scientists around the world. Proteins come in all sorts of varieties that could thereby account for the myriad ways in which genes act. Chromosomes are composed partly of proteins but mainly of a molecule that was then called nuclein – what we now call deoxyribonucleic acid, or DNA. ...
Eukaryotic Transcription
Eukaryotic Transcription

... Following the formation of the preinitiation complex, the polymerase is released from the other transcription factors, and elongation is allowed to proceed as it does in prokaryotes with the polymerase synthesizing premRNA in the 5' to 3' direction. As discussed previously, RNA polymerase II transcr ...
X-Sheet 2 Protein Synthesis and DNA Fingerprinting
X-Sheet 2 Protein Synthesis and DNA Fingerprinting

...  Ribosomal RNA (rRNA): form the ribosomes and produce the proteins based on the information from the tRNA.  Base pairing: Purines pair with Pyrimidines - adenine (A) always bonds to thymine (T) and guanine (G) with cytosine (C) in DNA molecule to ensures the precision of DNA replication  Codon: t ...
Resource pack: Human genetic variation and disease
Resource pack: Human genetic variation and disease

... Data, including SNP genotype frequencies and quantitative trait values, across populations such as Generation Scotland help researchers at the MRC Human Genetics Unit to conduct GWAS using many hundreds of thousands of SNP markers. Genetic association tests can then be performed, using a range of s ...
Hemoglobin
Hemoglobin

... iv- Hydrops fetalis: when all 4 copies of α globin genes are absent. It causes fetal death (babies with this disorder usually die before or shortly after birth) because α globin chains are required for synthesis of Hb F. ...
Slides 5 - InGenious HyperCare
Slides 5 - InGenious HyperCare

... GWA- WTCCC : Control groups • there were 2000 cases for each disease and 3000 common controls • there is a potential for misclassification bias as phenotyping is not available for the shared control group • it was estimated that if 5% of controls would meet the definition of cases, that loss of pow ...
Molecular evolution and substitution patterns.
Molecular evolution and substitution patterns.

... The duplication of an entire gene can allow for a copy of the gene maintaining the original function, while the other is able to disengage from selective constraint and accumulate mutations (in the coding region or in the promoter) Sometimes, the mutated copy of the gene is subject to changes that a ...
Protein Synthesis  1. The connection between genes and proteins.
Protein Synthesis 1. The connection between genes and proteins.

... There are only 4 bases but 20 amino acids so it is not sufficient for one nucleotide to represent one amino acid. i. In 1961, Crick (yep, him again) figured out how many bases have to be in each Acode word@ to create enough combinations to code for each amino acid. 41 = 4; 42 ...
Monohybrid Problems
Monohybrid Problems

... In dinosaurs, the “factor” (as Mendel called it) or gene (S) for sharp teeth is dominant over the “factor” or gene (s) for dull teeth. Cross a heterozygous sharp toothed dinosaur with a dulltoothed dinosaur to produce the F1 (first generation) offspring. ...
cd-epi.center
cd-epi.center

... through developmental plasticity, which generate a range of genotypes from a ...
Document
Document

... • The geometric orientations of the catalytic residues are similar between families, despite different protein folds. • The linear arrangements of the catalytic residues reflect different family relationships. For example the catalytic triad in the chymotrypsin clan (SA) is ordered HDS, but is order ...
< 1 ... 781 782 783 784 785 786 787 788 789 ... 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