• 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
Study Guide
Study Guide

...  A gene that can exist in more than 1 form (e.g. a gene for round or w_______________________ peas) is called an a________________________.  When gametes are produced (by meiosis) in the parent, allele pairs separate leaving each g_______________ with one allele for each trait.  At fertilization, ...
Punnett squares worksheet 2010
Punnett squares worksheet 2010

... How many different types of gametes can be formed by the father? ________ The genotypes of the gametes are: __________________________ ...
Genetics - Philadelphia Zoo
Genetics - Philadelphia Zoo

... to create the gene for fur color. The visible characteristic of a gene is called a phenotype. A gibbon may have a phenotype that is either black fur or blonde fur, but they do not have a mixture of the two. That is because the allele for black fur is dominant over the allele for blonde fur. The alle ...
Down syndrome genetics: unravelling a multifactorial disorder
Down syndrome genetics: unravelling a multifactorial disorder

... DOWN SYNDROME: THE FUTURE ...
Chromosomal rearrangements maintain a
Chromosomal rearrangements maintain a

... Fagopyrum2, but classic examples are also found in insect mimicry3–5 and snail morphology6. Understanding the evolutionary mechanisms that generate these co-adapted gene sets, as well as the mode of limiting the production of unfit recombinant forms, remains a substantial challenge7–10. Here we show ...
Lesson Overview - Enfield High School
Lesson Overview - Enfield High School

... Lesson Overview 11.4 Meiosis ...
Molecular Biology Fundamentals
Molecular Biology Fundamentals

... chromosomes. The goal of the Human Genome Project (HGP) is learning the specific order of those 3.3 billion base pairs and of identifying and locating all of the genes encoded by that DNA. Databases must be developed to hold, manage, and distribute all of those findings The HGP can be logically divi ...
STB 221 THEORY - Unesco
STB 221 THEORY - Unesco

... Recessive trait or character -this is controlled by recessive genes that can not express itself in all generations, but only in certain generations in the absence of the dominant gene. It is denoted with small letters such as tt, ss . Filial generations - these are the series of offspring produced f ...
On the origin and frequency of Y chromosome deletions responsible
On the origin and frequency of Y chromosome deletions responsible

... randomly and that random fertilization results in the same proportion of deletions among offspring. The assumption about random fertilization is probably correct. Evidence of any form of selective advantage in mammals involving specific classes of spermatozoa appears to be restricted to the Tt syste ...
Advances in cereal gene transfer Toshihiko Komari , Yukoh Hiei
Advances in cereal gene transfer Toshihiko Komari , Yukoh Hiei

... routinely for transformation of dicotyledonous plants. The advantageous features of Agrobacterium-mediated transformation include the transfer of pieces of DNA (T-DNA) with defined ends and with minimal rearrangement, the transfer of relatively large segments of DNA, the integration of small numbers ...
Meiosis II - Solon City Schools
Meiosis II - Solon City Schools

... chromosome (diploid) and makes cells with a single copy of every chromosome (haploid). In meiosis, one diploid cell produces four haploid cells. ...
The science of replacing mitochondrial DNA and
The science of replacing mitochondrial DNA and

... would take the nucleus from one of her egg cells, occur later in life? transfer it to a donor egg cell that has had its nucleus removed. The egg cell can be fertilized If there were a real "bully-wimp" mismatch situation, before or after. So all the nuclear genes come from I would strongly expect it ...
Cardiac Energy Dependence on Glucose Increases
Cardiac Energy Dependence on Glucose Increases

... BioAnalyzer 2100 (RIN≥9). For microarray analysis, cyanine-5labeled cRNA was co-hybridized to the G4122F mouse whole genome array (Agilent) with equimolar amounts of cyanine-3labeled mouse reference RNA17 and scanned on a GenePix 4000B (Axon) with Feature Extraction (v9.5.3.1; Agilent). In at least ...
miRNA
miRNA

... If the upstream miRNA (or siRNA) is defective, its effect could be amplified downstream. As an illustration, given that a miRNA (or siRNA) targets gene TG, which has two successive PPI partners, i.e. proteins L1 and L2; and suppose that genes TG and L2 are involved with the same disease, then it is ...
Module 3 Regulation of Gene Expression in Prokaryotes
Module 3 Regulation of Gene Expression in Prokaryotes

... May be defined as a unit of expression including structural genes and elements that control their expression; expression of the operon is controlled by other genes whose products interact with these control elements z Control region: operator, promoter z Polycistronic structural genes z Represseor g ...
Natural variation in Arabidopsis, a tool to identify genetic bases of
Natural variation in Arabidopsis, a tool to identify genetic bases of

... S. Chaillou, F. Chardon, J. Laurette, S. Ikram, O. Loudet and F. Daniel-Vedele INRA Versailles ...
Eukaryotic Cells and the Cell Cycle
Eukaryotic Cells and the Cell Cycle

... synapsis the chromosomes replicate about ten times with no division of the nucleus or cell. The result is a chromosome consisting of about one thousand strands which become very rigid and tightly aligned with each other. These giant chromosomes are seen to have alternating light and dark bands of va ...
Leukaemia Section Acute megakaryoblastic leukemia (AMegL) M7 acute non lymphocytic leukemia (M7-ANLL)
Leukaemia Section Acute megakaryoblastic leukemia (AMegL) M7 acute non lymphocytic leukemia (M7-ANLL)

... or CD7 positivity can be found on some occasions. The CD34, CD13 and CD33 markers are positive in a substantial fraction of cases, as is the case with the CD36/thrombospondin receptor. The myeloperoxidase stain is negative by light microscopy, but ultrastructural peroxidase activity with a specific ...
TCE - University of Arizona
TCE - University of Arizona

... Dig-labeled gC1qBP cDNA was hybridized to 1 or 2 ug of ...
Incomplete Dominance and Codominance
Incomplete Dominance and Codominance

... blended traits produced by the combinations of different alleles, many do exist in nature. When two alleles are equally dominant, they interact to produce a new phenotype. This kind of interaction is known as incomplete dominance. For example, if red snapdragons are crossed with white snapdragons, a ...
Escherichia coli synthetic genetic array
Escherichia coli synthetic genetic array

... isolate 1 and isolate 2. Two-rounds of selective outgrowth in 1,536colony format then produced consistent double mutant colony sizes (Supplementary Fig. 2 online), allowing for more accurate quantification of growth. We digitally imaged the final selective plates and quantified the data using an aut ...
Non contiguous-finished genome sequence and description of
Non contiguous-finished genome sequence and description of

... Spectrometry score that does not allow any identification. Thus, it is likely that this strain represents a new species. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 4,762,944 bp long genome (1 chromosome but no plasmid) contains 4,65 ...
Li, H. Ghosh, S. K., Amerson, H. and Li, B. (2004Major Gene Detection for Fusiform Rust Resistance using Bayesian Complex Segregation Analysis in Loblolly Pine,"
Li, H. Ghosh, S. K., Amerson, H. and Li, B. (2004Major Gene Detection for Fusiform Rust Resistance using Bayesian Complex Segregation Analysis in Loblolly Pine,"

... Fusiform rust, a disease of southern pines caused by Cronartium quercuum f.sp. fusiforme, continues to be the most economically important tree disease in commercial forests of the southern U.S. Deployment of genetically resistant trees is viewed as environmentally friendly and the only feasible mean ...
Pole Region-Dependent Repression of the Drosophila Gap Gene
Pole Region-Dependent Repression of the Drosophila Gap Gene

... these genes exhibit deletions of abdominal segments that resemble, to various degrees, defects observed in embryos homozygous for the gap mutant kni (see above). The largest abdominal deletions are caused by mutations of osk, vas, porn, and stau (Figure 2). In mutant embryos the abdominal segments a ...
Chpt3_Isolating_analyzing_genes.doc
Chpt3_Isolating_analyzing_genes.doc

... Plasmids are autonomously replicating circular DNA molecules found in bacteria. They have their own origin of replication, and they replicate independently of the origins on the "host" chromosome. Replication is usually dependent on host functions, such as DNA polymerases, but regulation of plasmid ...
< 1 ... 155 156 157 158 159 160 161 162 163 ... 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 © 2025
  • DMCA
  • Privacy
  • Terms
  • Report