• 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
401Lecture6Sp2013post
401Lecture6Sp2013post

... • Different enhancers/promoters can control transcription of the same gene in different cell types • Different subsets of transcription factors bind to enhancers of the same gene in different cell types • Enhancers can be located far from transcription start sites ...
cdev-1st-edition-rathus-solution-manual
cdev-1st-edition-rathus-solution-manual

... c. Genes are biochemical materials that regulate the development of traits d. Some traits are determined by a single pair of genes whereas other traits are polygenic, derived from multiple pairs of genes e. Heredity is governed by 20,000 to 25,000 genes f. Genes are segments of strands of deoxyribon ...
Document
Document

... – Non hereditary (sporadic) form occurs in an individual with no family history of the disease, and affects only one eye (unilateral). – Heteditary form affects both eyes (bilateral) and usually occurs at an earlier age than sporadic. – A single gene (Rb) on chromosome 13q14 involved. • In hereditar ...
Gene regulation
Gene regulation

... • It is thought to bind more than 20 different proteins • It is very sensitive to the position of the gene (nucleus) within the developing giant cell • The different concentrations of the different proteins impact on the expression of ‘Eve’ ...
Heredity
Heredity

... • The study of how traits are passed from parent to offspring by looking at genes • Genes are small sections of DNA on a chromosomes that has information about a trait • Each chromosome has a gene for the same trait (eye color from mom & eye color from dad) • Traits are determined by alleles on the ...
Genetics exam 4
Genetics exam 4

... _____ Clusters of highly repetitive DNA located near the centromeres and telomeres are called A. Nucleosomes B. Euchromatin C. Chromatids D. Heterochromatin E. 30 nm chromatin _____ Which histone protein is present as a monomer within the nucleosome and is not a part of the core particle? A. H1 B. H ...
Important questions from the unit genetics and
Important questions from the unit genetics and

... because the two genes representing a single character did not segregate independently. Morgan explained that the deviation from Mendelian ratio was because of linkage. Linkage is defined as the coexistence of two or more genes in the same chromosome that inherited together. If the genes are situated ...
PraderWilli syndrome resulting from an unbalanced translocation
PraderWilli syndrome resulting from an unbalanced translocation

... distal 5p suggesting a mechanism other than affinity to telomeric sequences. Proximal 15q is rich in repeat sequences and duplicons that are involved in the microdeletion seen in PWS, as well as in the formation of chromosome 15 supernumerary markers (18, 19). Such low-copy genomic repeats are incre ...
Complete Nucleotide Sequence of Saccharomyces cerevisiae
Complete Nucleotide Sequence of Saccharomyces cerevisiae

... A description of the function of the genes. A description of the protein most similar to the other genes is also listed. Genes with no listing in this column have no homologs (BLASTX score usually less than 70). Column 5: The BLASTX (18) score for the alignment of the encoded protein to its closest ...
Ovulation through implantation
Ovulation through implantation

... • Two weeks after the onset of menstruation the follicle containing the egg is discharged at the surface of the ovary and is caught in the fallopian tube. For approximately 24 hours the egg awaits possible fertilization by a sperm. If this does not occur, the egg begins to disintegrate and dies. Onc ...
Leukaemia Section t(7;14)(q35;q32.1) TRB@/TCL1A, inv(14)(q11q32.1) TRA@-TRD@/TCL1A, t(14;14)(q11;q32.1) TRA@- TRD@/TCL1A
Leukaemia Section t(7;14)(q35;q32.1) TRB@/TCL1A, inv(14)(q11q32.1) TRA@-TRD@/TCL1A, t(14;14)(q11;q32.1) TRA@- TRD@/TCL1A

... abnormality and occurs in more than two thirds of cases. Few patients may have t(14;14)(q11;q32), the variant t(X;14)(q28;q11) may be found. Additional anomalies 55 to 80 % of cases have additional abnormality affecting the chromosome 8: i(8)(q10) (43%), t(8;8)(p12;q11) (14%), +8 (14%) and abnormali ...
Document
Document

... plants with spherical seeds were crossed with true-breeding plants with dented seeds. (Spherical seeds are the dominant characteristic.) Mendel collected the seeds from this cross, grew F1-generation plants, let them self-pollinate to form a second generation, and analyzed the seeds of the resulting ...
Causes, Risk Factors, and Prevention What Are the Risk Factors for
Causes, Risk Factors, and Prevention What Are the Risk Factors for

... that slow down cell division or make cells die at the right time are called tumor suppressor genes. Cancers can be caused by DNA changes that turn on oncogenes or turn off tumor suppressor genes. Some people inherit DNA changes from a parent that increase their risk for certain types of cancer. Res ...
Practice Exam 4 - Iowa State University
Practice Exam 4 - Iowa State University

... 15.) What is the frequency of each phenotype in the F2 generation of a cross between 2 homozygous parent peas with the genotypes RR and rr? a. 1 round, 2 slightly wrinkled, and 1 wrinkled b. ¼ RR, ½ Rr, and ¼ rr c. 3 round, 1 wrinkled ...
Sex-Linked Problem Set
Sex-Linked Problem Set

... means she was either a carrier or had muscular dystrophy. The man must pass the gene to all of his daughters, so they will be carriers (or could have muscular dystrophy if their mother also carries the recessive allele). The man will not pass the gene to his sons. ...
Chromosome - World of Teaching
Chromosome - World of Teaching

... numbers of a species ordinarily remain constant. This is due to the extremely precise mitotic and meiotic cell division. Somatic cells of a diploid species contain two copies of each chromosome, which are called homologous chromosome. Their gametes, therefore contain only one copy of each chromosome ...
Fulltext PDF
Fulltext PDF

... fruit fly or Drosophila melanogaster for genetic studies by Thomas Hunt Morgan within a few years of the rediscovery of Mendel's laws was a turning point in the young field of genetics since inheritance patterns could now be studied in a much shorter time than was possible with the plant systems use ...
Genetics – Test 2 - The Biology Corner
Genetics – Test 2 - The Biology Corner

... 5. Blood types: If one parent has type A blood and another parent has type B blood, what are ALL the possible blood types of the children. You do not know the parents’ genotypes. ...
letter Widespread aneuploidy revealed by DNA microarray expression profiling
letter Widespread aneuploidy revealed by DNA microarray expression profiling

... sion bias in a 56-ORF region on rps24a∆/rps24a∆ (sector 4) cells or their isogenic parental wild-type cells (sectors 1 and 3) were streaked onto solid the right arm of chromosome medium and incubated at 30 °C for 2–4 d. Fast-growing colonies, shown to harbour an extra copy of chromosome IX, are high ...
alleles - Winston Knoll Collegiate
alleles - Winston Knoll Collegiate

... Each cell splits (similar to mitosis) Produces four daughter cells. Animation ...
Document
Document

... Each cell splits (similar to mitosis) Produces four daughter cells. Animation ...
Microarray Data Analysis Normalization
Microarray Data Analysis Normalization

... [email protected] your project name ...
meiosis!!! - Fort Bend ISD
meiosis!!! - Fort Bend ISD

... 1.Genes are located on chromosomes in the cell’s nucleus. ...
Investigating the Results of Inherited Traits
Investigating the Results of Inherited Traits

... genes in a gene pair are the same, the trait is said to be pure. If the genes are not similar, the trait is said to be hybrid. Sometimes genes can be neither dominant nor recessive. The result of such a situation is a blending of traits. The genetic make-up of an individual is known as its genotype. ...
alleles - www .alexandria .k12 .mn .us
alleles - www .alexandria .k12 .mn .us

... large numbers of flies easily 2. Produce many offspring 3. Short reproductive cycle 4. Only four pairs of chromosomes ...
< 1 ... 327 328 329 330 331 332 333 334 335 ... 681 >

X-inactivation



X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation). The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report