• Study Resource
  • Explore
    • 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
F 1 - OpenWetWare
F 1 - OpenWetWare

... horses that, when crossed with each other, always produce palomino foals. The breeder has 12 palomino stallions that are not related to each other. He tells you that every one of the twelve stallions, when bred to palomino mares, has produced a mix of three kinds of offspring: ...
PDF
PDF

... Two DAGs may imply exactly the same set of independencies. For example, consider graphs    and    over two variables  and  . Both graphs imply that  and  are not independent. In such a situation, we say that the two graphs are equivalent. The notion of equivalence is crucial, since when we ...
2 - GEP Community Server
2 - GEP Community Server

... 2. An initial report describing the annotation of one gene found in each student’s data set is required on Feb. 4. This is worth 10 points. 3. The complete annotation report is due on March 4. This is worth 28points. 4. The simulations report is due on March 25. This is worth 10 points. 5. The compl ...
Y chromosome
Y chromosome

Lec 18 - Crossing Over
Lec 18 - Crossing Over

... To test, we need strains with mutations at 2 genes on the same chromosome. In Neurospora, there are many nutritional mutants are known. These are unable to make some essential nutrient on their own, and it must be supplied in their medium. met mutants are unable to synthesize their own methionine. h ...
Role of Cryptic Genes in Microbial Evolution1
Role of Cryptic Genes in Microbial Evolution1

... Knapp et al. 1978; Juni and Heym 1980). It is of interest that “revertants” to prototrophy for most of these growth factors (e.g., isoleucine, thiamine pyrophosphate) are observed in the laboratory (Carfio and Catlin 1973; Catlin 1973; Eisenstein et al. 1977; Knapp et al. 1978; Juni and Heym 1980). ...
Document
Document

... Muscular Dystrophy ...
doc Sample midterm 2
doc Sample midterm 2

... linked. But rejection of the null could also be due to differential viability. Answer “b” takes into account the possibility of differential viability of the mutation-bearing gametes, whereas answer “d” does not. However, I noted that there has been confusion over this due to inconsistency in the wa ...
Elimination of Markings - Huzulen im Club Hucul Austria
Elimination of Markings - Huzulen im Club Hucul Austria

Predicting TF affinities to Promoters of tissue specific genes
Predicting TF affinities to Promoters of tissue specific genes

... the previous findings the first four genes have SRF predicted as the top regulator (see Table 5.2). The latter two genes, which encode CRX and E2F2, served as a control as they are not SRF targets but rather encode other autoregulating transcription factors that bind directly to their own promoters ...
Clustering Gene Expression Data: The Good, The Bad, and The
Clustering Gene Expression Data: The Good, The Bad, and The

... • Hierarchical clustering dendrograms allow us to visualize gene expression data. • These methods allow us to hypothesize about relationships between genes and classes. • We should use these methods for visualization, hypothesis generation, selection of genes for further consideration • We should no ...
Evolution of bacterial resistance to antibiotics during the last three
Evolution of bacterial resistance to antibiotics during the last three

... origin. It is well known that the correct use of antibiotics in veterinary medicine is of great concern, as it was reported in the Swann Report (1969) (Report of Joint Comittee on the Use of Antibiotics in Animal Husbandry and Veterinary Medicine, Her Majesty’s Stationery Office, London [1969]). Suc ...
Science Grade 7 Date: March 21, 2014 ET Topic: Classification
Science Grade 7 Date: March 21, 2014 ET Topic: Classification

... Identify the levels of organization from cell to organism and describe how specific structures (parts), which underlie larger systems, enable the system to function as a whole. S8.B.2.1.1 -- Essential Explain how inherited structures or behaviors help organisms survive and reproduce in different env ...
2) TF Gene-Disease Association Property Predictions
2) TF Gene-Disease Association Property Predictions

... of the protein, GC content and percentage protein identity with its nearest homologue in various species (mouse, worm, fly). They use an alternating decision tree, taking again genes from OMIM and comparing against genes not found in OMIM. They also generated two independent test sets – one using ge ...
Missing Value Estimation for Gene Expression Profile Data
Missing Value Estimation for Gene Expression Profile Data

... methods have been developed which can be classified into two categories, i.e., global strategy and local strategy[8] . An assumption for the global strategy is that, all genes in a dataset are with covariance structure. Therefore, the global strategy is only suitable for datasets with strong global c ...
Exam1 - Cornell College
Exam1 - Cornell College

... a) Using diagrams explain why the number of MII asci can be used to determine the map distance between any gene and the centromere. (3 pts) b) Map all genes. (5 pts) c) Derive the crossover pattern for class 6. (3 pts) 6. a) Diagram and label what one homologous pair would look like during prophase ...
Identification of Genes Related to Parkinson`s
Identification of Genes Related to Parkinson`s

... constructed from a human normal substantia nigra (SN) and a PD patient’s SN. An analysis of the gene expression profiles between them was done using the expressed sequence tags (ESTs) frequency. Data for the differently expressed genes were verified by quantitative real-time RT–PCR, immunohistochemica ...
SUNLIBB Work Packages, Aims and Achievements
SUNLIBB Work Packages, Aims and Achievements

... Recently, deep transcriptome sequencing data (Illumina and 454 pyrosequencing) of Miscanthus sinensis have been released, which redirected our work to a bioinformatics focus using these datasets. OrthoMCL was used to create a multi-species ortholog database, using these RNA-seq data and the predicte ...
Genetic tasks V: GENE INTERACTIONS
Genetic tasks V: GENE INTERACTIONS

... 2. The colour of a feather of a canary is determined by genes A and B. Dominant allele of gene A encodes for red colour, dominant allele of gene B for yellow one. Birds with genotypes aabb and A-B- are white. a) Use colours in Punnet square (or branching method) to differentiate phenotypes resultin ...
file
file

... • Use cross validation: partition the data into 5 gene sets, learn the rules based on all but one and test based on the left-out, each time. ...
Supplementary Online Material
Supplementary Online Material

... target groups (Supp. Table 11), while the 133 synthetic lethal pairs formed 44 target groups (Supp. Table 12). The target group that specifically inhibits cholesterol production consists of a long chain of enzymes directly involved in cholesterol biosynthesis (in accordance with the pathway annotati ...
Where Did All the Flowers Come From?
Where Did All the Flowers Come From?

... flowerless species that produce seeds, a But there is a consensus when it comes to group that includes pine trees and the early evolution of flowers gingkos. Unfortunately, the plants are all themselves. By studying the DNA of closely related to one another, and none many flowering plants, scientist ...
dominance relationships between two allelic genfs
dominance relationships between two allelic genfs

... end-product of gene gG; (2) differences in affinity between the two enzymes for a common substrate; ( 3 ) differences in rate of synthesis between the two enzymes competing f o r the same substrate. In order to elucidate this suppression, the proteins controlled by these two genes have to be identif ...
CyO / cn bw let-a?
CyO / cn bw let-a?

... genes haploinsufficient but only with respect to sev function! Wildtype fly must normally have an excess of sev+ activity as insurance, so it can tolerate fluctuations in levels of other genes in pathway during development …if take away that cushion, now more sensitive to reductions in other gene le ...
Body maps on the human genome | SpringerLink
Body maps on the human genome | SpringerLink

... there is an antero-posterior progression, a “trend of trends”. Figure 4 includes the brain genes distribution of Figure 2, and the ovary genes distribution of Figure 3, along with the other tissue gene head-tail gradients. The relationship between tissue-locations in the body and gene-positions in t ...
< 1 ... 26 27 28 29 30 31 32 33 34 ... 114 >

Essential gene



Essential genes are those genes of an organism that are thought to be critical for its survival. However, being essential is highly dependent on the circumstances in which an organism lives. For instance, a gene required to digest starch is only essential if starch is the only source of energy. Recently, systematic attempts have been made to identify those genes that are absolutely required to maintain life, provided that all nutrients are available. Such experiments have led to the conclusion that the absolutely required number of genes for bacteria is on the order of about 250-300. These essential genes encode proteins to maintain a central metabolism, replicate DNA, translate genes into proteins, maintain a basic cellular structure, and mediate transport processes into and out of the cell. Most genes are not essential but convey selective advantages and increased fitness.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report