• 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
Genetics - ND EPSCoR
Genetics - ND EPSCoR

... the predicted results, how closely do you think they would match? 8. Why do you think this happens? 9. Do the results of one coin toss affect the results of the next? The actual choice of which sperm or egg will be “chosen” to make the offspring is entirely random. Thus, one family may have an exces ...
The Chicken (Gallus gallus) Z Chromosome Contains at Least Three
The Chicken (Gallus gallus) Z Chromosome Contains at Least Three

... mechanisms for such segmental steps of sex chromosome divergence are inversions on Y (W) and recombination restriction without inversions. Neither of these alternatives can currently be tested, as the poor assembly of the repeat-rich chicken W chromosome precludes gene-order analysis, and no antagon ...
(a) (b)
(a) (b)

... Father)…bees and ants ...
a master regulation of MHCII expression
a master regulation of MHCII expression

Karyotype Lab information
Karyotype Lab information

... nitrogen base pairs which serve as genes. 3. Each gene controls the production of a protein in the organism which creates a trait (characteristic). ...
Promoter Analysis for Intestinally
Promoter Analysis for Intestinally

... a. The sequences of all hits were extracted and flipped to the strand that maximized As and Gs. b. The sequences were then run through ClustalW. Alignments can be seen in the following file: i. C. elegans : Cele_all_hits_aligned.txt ii. C. briggsae: Cbri_all_hits_aligned.txt iii. C. remanei : Crem_a ...
PowerPoint
PowerPoint

... Father)…bees and ants ...
Planet Earth and Its Environment A 5000-million year
Planet Earth and Its Environment A 5000-million year

... It is an advancement on the reproductive technologies that we have already discussed, as it allows specific desirable genes to be moved from one species to another. Genes can be ‘cut and pasted’— removed from the cells of one organism and inserted into the genome of another organism, where they beco ...
view pdf - University of Arizona
view pdf - University of Arizona

... genes) cell types, usually with one cell type showing a higher level of expression. The expression of a subset of these genes was also analysed during megagametogenesis and early seed development. For example, 12 genes were transcriptionally active in the developing embryo and/or endosperm. These re ...
Promoter identification
Promoter identification

... different factors in different cell types. • Core promoter regulatory elements are short and not completely conserved ⟹ similar elements will be found purely by chance all over the genome. ...
Tumor-Suppressor Genes
Tumor-Suppressor Genes

... transcription in some species • In some species, DNA methylation causes longterm inactivation of genes in cellular differentiation • In genomic imprinting, methylation turns off either the maternal or paternal alleles of certain genes at the start of development ...
Karyotyping Lab:
Karyotyping Lab:

... b. Is the sex of each baby readily obvious? _________ Occasionally, complications exist which make it difficult to determine the sex of a baby. What do you think these complications might be, and how could they occur? Explain your answer. ...
How do genetic and environmental factors interact in diabetic kidney
How do genetic and environmental factors interact in diabetic kidney

... patients with Type 1 diabetes and healthy individuals [16] . There was a marked variation in H3K9Ac levels in the upstream regions of HLADRB1 and HLA-DQB1 within the IDDM1 locus between cases and controls, indicating that the acetylation status of H3K9 may contribute to Type 1 diabetes through regul ...
Identification of genes expressed in the angiosperm female
Identification of genes expressed in the angiosperm female

... genes) cell types, usually with one cell type showing a higher level of expression. The expression of a subset of these genes was also analysed during megagametogenesis and early seed development. For example, 12 genes were transcriptionally active in the developing embryo and/or endosperm. These re ...
(Part 2) Mutation and genetic variation
(Part 2) Mutation and genetic variation

... Where do new genes come from? An example: the antifreeze glycoprotein (AFGP) gene in the Antarctic fish, Dissostichus mawsoni • antifreeze proteins allow these fishes to inhabit ...
Physical Anthropology- 101 - Fullerton College Staff Web Pages
Physical Anthropology- 101 - Fullerton College Staff Web Pages

... graded on this exercise). 1. Science can be used to explore any question that humans have. At this time there is enough evidence for scientists to state absolutely that UFO’s do not exist. 2. The age of the earth is some 4.5 million years old. 3. Charles Darwin’s theory of natural selection has unde ...
NAME KIT # ______ Karyotyping Lab 1. a. Normally, how many
NAME KIT # ______ Karyotyping Lab 1. a. Normally, how many

... b. Is the sex of each baby readily obvious? _________ Occasionally, complications exist which make it difficult to determine the sex of a baby. What do you think these complications might be, and how could they occur? Explain your answer. ...
PLEIOTROPIC EFFECT OF Rht3 DWARFING GENE ON SOME
PLEIOTROPIC EFFECT OF Rht3 DWARFING GENE ON SOME

... and Rht1S are prevalentin Southern European cultivars (W ORLAND and LAW 1986). There were trials of using some other Rht dwarfing genes, but without significant success (W ORLAND et al. 1980). For now, only strong dwarfing allel Rht3 (known as 'Tom Thumb' or 'Minister dwarf' gene) shows some breedin ...
Leveraging additional knowledge to support coherent bicluster
Leveraging additional knowledge to support coherent bicluster

... Information-Driven Iterative Signature Algorithm (AID-ISA). It uses an alternate refinement process based on additional information and combined with the Iterative Signature Algorithm [19]. When additional information on genes and/or samples is available, our approach leverages such knowledge to sup ...
Gene Regulation
Gene Regulation

... to certain bases in DNA, is associated with reduced transcription in some species • DNA methylation can cause long-term inactivation of genes in cellular differentiation • In genomic imprinting, methylation regulates expression of either the maternal or paternal alleles of certain genes at the start ...
Notes 1 - Mishicot FFA
Notes 1 - Mishicot FFA

Orthology, Paralogy, Chains, and Nets - CS273a
Orthology, Paralogy, Chains, and Nets - CS273a

... (DNA) of egg (DNA) ...
ALE 8. Mendelian Genetics and Chromosomal Basis of Inheritance
ALE 8. Mendelian Genetics and Chromosomal Basis of Inheritance

... biochemical pathway leading to melanin. Given that heterozygotes are normally pigmented, which of the following statements is/are correct? a.) One normal allele produces as much melanin as two normal alleles. b.) Each defective allele produces a little bit of melanin. c.) Two normal alleles are need ...
D - Institute for Behavioral Genetics
D - Institute for Behavioral Genetics

... Notes: Key to genetic components (c.f. Figure 2): MM=maternal copies of genes having indirect maternal effects (m) when present in the mother; CM = maternal copies of genes having direct effects (h) when present in offspring; MC= offspring copies of genes having indirect maternal effects (m) when pr ...
a meiotic mutation causing partial male sterility in a corn silage hybrid
a meiotic mutation causing partial male sterility in a corn silage hybrid

... be controlled by nuclear or cytoplasmic genes, or both, that affect stamen or pollen development (Kaul, 1988). Male sterility can be the result of gene mutation or environmental factors (Horner and Palmer, 1995). Phenotypes of male sterile mutants range from complete absence of male reproductive org ...
< 1 ... 273 274 275 276 277 278 279 280 281 ... 779 >

Genomic imprinting

Genomic imprinting is the epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the allele inherited from the father is imprinted, it is thereby silenced, and only the allele from the mother is expressed. If the allele from the mother is imprinted, then only the allele from the father is expressed. Forms of genomic imprinting have been demonstrated in fungi, plants and animals. Genomic imprinting is a fairly rare phenomenon in mammals; most genes are not imprinted.In insects, imprinting affects entire chromosomes. In some insects the entire paternal genome is silenced in male offspring, and thus is involved in sex determination. The imprinting produces effects similar to the mechanisms in other insects that eliminate paternally inherited chromosomes in male offspring, including arrhenotoky.Genomic imprinting is an inheritance process independent of the classical Mendelian inheritance. It is an epigenetic process that involves DNA methylation and histone methylation without altering the genetic sequence. These epigenetic marks are established (""imprinted"") in the germline (sperm or egg cells) of the parents and are maintained through mitotic cell divisions in the somatic cells of an organism.Appropriate imprinting of certain genes is important for normal development. Human diseases involving genomic imprinting include Angelman syndrome and Prader–Willi syndrome.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report