• 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
Lecture 4
Lecture 4

... Gene prediction for Pol II transcribed genes.  Upstream Enhancer elements.  Upstream Promoter elements.  GC box (-90nt) (20bp), CAAT box (-75 nt)(22bp) ...
Genetics - Lancaster High School
Genetics - Lancaster High School

... Segregate (separate) from each other & remain distinct. Seen in meiosis when the homologous chromosomes separate Form gametes ...
Sec.. .Name - Circle
Sec.. .Name - Circle

... 1. The parent plants crossed by Mendel are shown in the diagram in results. Axial flowers grow along the stem. Terminal flowers develop only at the tip of the stem. Mendel found in pea plants that axial (A) flower position is dominant to terminal (a) flower position. Examine the genotypes of each pa ...
PPS - VCU
PPS - VCU

... http://www.ipam.ucla.edu/publications/fg2000/fgt_tspeed9.pdf ...
PHYOGENY & THE Tree of life
PHYOGENY & THE Tree of life

... in chromosomes: “homologous” means sequences are so similar that they are not likely due to chance so are considered the result of common ancestry ...
Mendelian Genetics
Mendelian Genetics

... Your Mom gives you the gene for having a Unibrow (recessive) and your father gives you the gene for having two eye brows (dominant) Dad ...
sSL
sSL

... follows patterns. ...
The Work of Gregor Mendel student notesheet
The Work of Gregor Mendel student notesheet

... ➢ He was an Australian monk, who in the mid 1800’s discovered important facts about heredity using __________________ __________________. ➢ Garden peas produce male and female sex cells called __________________. ➢ __________________ occurs when the male and female reproductive cells join forming a ...
What is a gene? - Ecology and Evolution Unit
What is a gene? - Ecology and Evolution Unit

... and pass into the egg. These bits of RNA by RNA.” Although functions have been identified somehow silence the normal Kit gene in the for several RNA molecules, the crux of the next generation and subsequent ones, prodebate now is the extent to which all the ducing the spotted-tail effect. “We are co ...
b - nnhschen
b - nnhschen

... The Chromosomal Basis of Sex • In humans and other mammals: X vs. Y • Y is tiny!! • The SRY gene on the Y chromosome • Some disorders caused by recessive alleles on the X: • Color blindness (mostly X-linked) • Duchenne muscular dystrophy • Hemophilia ...
LECTURE 4 Atypical Patterns of Inheritance
LECTURE 4 Atypical Patterns of Inheritance

... 4-Unusual inheritance patterns due to Genomic Imprinting   ...
PGS: 274 – 284
PGS: 274 – 284

... 1. This theory states that genes have specific loci on chromosomes. 2. Each chromosome moves independently during segregation. a. This theory supports Mendel’s Law of Segregation. ...
BIOLOGY UNIT 6 STUDY GUIDE
BIOLOGY UNIT 6 STUDY GUIDE

... during meiosis & fertilization accounts for inheritance patterns – chromosomes undergo segregation & independent assortment during meiosis Scenario 1: Gene loci close together – Homologous chromosomes pair up at prophase I of meiosis, then cross over. The alleles tend to stay together. Scenario 2: G ...
The human genome
The human genome

... • Although more than 99% of human DNA sequences are the same, variations in DNA sequence can have a major impact on how humans respond to: – disease; – environmental factors such as bacteria, viruses, toxins, and chemicals; – and drugs (& side-effects). ...
Carlson - Karola Stotz
Carlson - Karola Stotz

... phases—it is mechanistic and analytical in determining the existence and function of cell components or processes but it is also integrative when using those components that are more likely to involve networks of associations than isolated causes. Their final conclusion is more difficult to assess. ...
Meiosis and Genetic Variation
Meiosis and Genetic Variation

... – Some of the chromatids are very clos to each other. – One chromatid from each chromosome breaks off and reattaches to the other chromosome (there is a swap of DNA between chromatids). – Crossing over (the swap of DNA) can occur multiple times within the same pair of homologous chromosomes. ...
Ch. 15 The Chromosomal Basis of Inheritance
Ch. 15 The Chromosomal Basis of Inheritance

... ­*due to random orientation of homologous chromosomes on  metaphase 1 plate of meiosis = independent assortment of alleles ...
Complex Inheritance Patterns
Complex Inheritance Patterns

...  Sometimes the expression of one gene can affect the ...
Professor Jennifer A. Marshall Graves Fellow of the Australian
Professor Jennifer A. Marshall Graves Fellow of the Australian

... sex chromosomes are nothing but trouble. The X and Y don’t pair very well at male meiosis (causing infertility), the dosage difference of the X between the sexes requires compensation, its unpaired state in males causes sex linked diseases, and translocations of the terminal SRY leads to sex reversa ...
HEREDITY - Klahowya Secondary School
HEREDITY - Klahowya Secondary School

...  Now draw a square like the last slide and place mom’s traits over the top 2 boxes and dad’s traits next to the boxes on the side.  Start with mom and the first X, bring it down & write it into each box it’s over. Do the same for the second X.  repeat this for dad’s traits bringing each trait acr ...
Patterns of Inheritance
Patterns of Inheritance

... • Allow human heredity to be studied – Can’t control human mating, so look at those naturally occurring – Can indicate type of gene responsible • Sex-linked or autosomal recessive/dominant ...
Extension of Mendelian Genetics
Extension of Mendelian Genetics

... 1. The orange and black patterns are encoded by alleles at an X-linked locus called the O locus (The white patches in calico cats are due to an allele at an autosomal locus, which prevents pigment formation). The O locus has two common alleles affecting coat color: one allele results in an orange co ...
Chapter 12
Chapter 12

... new plants. He called this new generation of offspring the second filial generation or F2 generation.  Notice how many of each trait was produced— what’s the deal? ...
Biol/Chem 473 See web site for Reading Assignment for next week`s
Biol/Chem 473 See web site for Reading Assignment for next week`s

... o In mammals and birds, which have distinct cervical (green) and thoracic (purple) axial regions, the anterior boundary of expression of the Hoxc6 gene lies at the cervical-thoracic transition o the anterior boundary of the Hox c8 gene lies within the thorax o the Hoxa,b,c9 boundary lies at the thor ...
Chapter 3
Chapter 3

... • Can result from mistakes during DNA replication • Are fixed by mechanisms in your body • In somatic cells can affect individuals but not necessarily the next generation • In gametes may be passed on to the next generation ...
< 1 ... 536 537 538 539 540 541 542 543 544 ... 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