• 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
HGSS Chapters 11 & 12: Modern Gene Hunting (incomplete)
HGSS Chapters 11 & 12: Modern Gene Hunting (incomplete)

... We humans are diploid (i.e., we have two copies of a gene), inheriting one chromosome from mother, the other from father. In transmitting a chromosome to an offspring, however, the physical process of recombination (crossing over) results in a chromosome that contains part of the maternal chromosome ...
没有幻灯片标题
没有幻灯片标题

... 29.12 Complex loci are extremely large and involved in regulation Figure 29.32 The homeotic genes of the ANT-C complex confer identity on the most anterior segments of the fly. The genes vary in size, and are interspersed with other genes. The antp gene is very large and has alternative forms of ...
Greatest Discoveries With Bill Nye: Genetics
Greatest Discoveries With Bill Nye: Genetics

... Definition: Rod-shaped structures contained in a cell made up of a molecule of DNA threaded around proteins Context: In females, the gene responsible for red eyes on one of the X chromosomes might be overshadowing the gene for white eyes on the other chromosome. dominant Definition: Of, relating to, ...
Document
Document

... amino acid similarity to the PAX family of transcription factors; however, there is no obvious similarity to any one specific class of PAX protein, say like PAX6; hence, you have discovered a new subfamily that you have named KAX for kidney specific Pax. Your next experiment is to isolate homologous ...
What Are Dominant and Recessive Traits
What Are Dominant and Recessive Traits

... What traits have you inherited? Every living thing is a collection of traits that have been passed down to them by their parents. These traits are controlled by something called genes. Genes are made up of DNA and are located on the chromosomes. When pairs of chromosomes separate into sex cells duri ...
Color Genetics of the Dwarf Hotot
Color Genetics of the Dwarf Hotot

... mismarks, other than the occasional random spots, while others do? Why do some crosses give close to 100% marked kits, while others throw a ton of mismarks? Well, the modifying genes do play a role, however, we can breed to get the most marked kits even without knowing about the modifires. Keeping t ...
What Are Dominant and Recessive Traits
What Are Dominant and Recessive Traits

... What traits have you inherited? Every living thing is a collection of traits that have been passed down to them by their parents. These traits are controlled by something called genes. Genes are made up of DNA and are located on the chromosomes. When pairs of chromosomes separate into sex cells duri ...
Genètica Mendeliana
Genètica Mendeliana

... chromosomes segregates during meiosis independently of the members of other pairs, with the result that alleles carried on different chromosomes are distributed randomly to the gametes •In the second generation (bottom row) on average one of four plants will have two recessive alleles (genotype: rr) ...
Epigenetics Question
Epigenetics Question

... Is the gene tightly or loosely wrapped around histones? Are there many or few acetyl molecules attached to the gene? Are there many or few acetyl molecules attached to the histones? Are there many or few mRNA transcripts? ...
Composite Transposons
Composite Transposons

... 700 to 5000 bp which can move from one location in a DNA sequence to another. They have short 16-41 bp inverted repeats on their ends. They encode a transposase which catalyses site-specific recombination. ...
Mendelian Genetics Blending theory of heredity
Mendelian Genetics Blending theory of heredity

... Parents w recently shared ancestry are more likely to inherit the same recessive alleles than unrelated persons Because some embryos are aborted prior to birth, it is difficult to assess extant to which consanguinity increases the incidence of inherited diseases Most cultures forbid marriage between ...
Genomes and Evolution - Caister Academic Press
Genomes and Evolution - Caister Academic Press

... or read the symbols in the band, as a function of the previous readings by the head. This machine is essentially defined by the fact that it allows formal separation between the machine proper (the read/write head and the mechanics needed to make the band move), the data which set the conditions und ...
Alu elements and splicing events
Alu elements and splicing events

... Mutation renders A nonfunctional & creates new ...
Section 2: Energy Flow in Ecosystems
Section 2: Energy Flow in Ecosystems

... • Cells have complex systems that regulate whether or not specific genes are expressed, depending on the cell’s needs and environment. • The major form of gene regulation in prokaryotes depends upon operons that respond to environmental factors. • Gene expression in eukaryotes is more complex and va ...
Genetics Unit Test Review
Genetics Unit Test Review

... Complete the following dihybrid crosses. 1. Bronze turkeys have at least one dominant allele B. Red turkeys are homozygous recessive (b). Another dominant gene H produces normal feathers, and the recessive allele (h) produces “hairy” feathers. Cross a heterozygous bronze, hairy feathered bird with a ...
Biology 102, Lecture 21 Study Guide
Biology 102, Lecture 21 Study Guide

... What is meant by independent assortment? For two traits to sort independently, what must be true? ...
F 1 - Old Saybrook Public Schools
F 1 - Old Saybrook Public Schools

... In hemophilia, the mutant gene for factor VIII, the clotting factor, is carried on the X chromosome. The affected males inherited their single X chromosome from their mothers—if the mutated form of the gene was present, they would develop the disease. Daughters would inherit a normal X chromosome as ...
Study Guide: Chapter 3 and 4 TEST Tuesday 11/03/15 Mendelian
Study Guide: Chapter 3 and 4 TEST Tuesday 11/03/15 Mendelian

... Options of a trait that are present in a diploid organism UNIT FACTORS/ALLELES Contains the information for creating proteins GENE The separation of sister chromatids during meiosis that separates alleles to create haploid cells SEGREGATION Physical expression of a gene; what you see PHENOTYPE What ...
Targeted Fluorescent Reporters: Additional slides
Targeted Fluorescent Reporters: Additional slides

... iv. Activator: a complex of Ts factor and enhancer v. Repressors: this could be DNA methylation d) Transcription factors. . . i. ...
Slides - Barley World
Slides - Barley World

...  Polyploidy is Cyclical and is Followed by Gene Loss and Diversification  The foregoing sequence-based approaches have provided powerful tools for diagnosing and defining the history of genome duplications, and also have demonstrated that each duplication event has been followed by subsequent loss ...
Document
Document

... – Each parent donates one allele for every gene. – Homozygous describes two alleles that are the same at a specific locus. – Heterozygous describes two alleles that are different at a specific locus. ...
Genetics
Genetics

... Because of the chromosomal theory, genes located close together on the same chromosome tend to be inherited together and are called linked genes. Linked genes generally do not follow Mendel’s law of independent assortment. Refer to figure 9.19 in book ...
Document
Document

... How many chromosomes does a person with Down Syndrome have? ...
Documentation of MetaMine
Documentation of MetaMine

... Using the default parameters the user will obtain a maximal amount of redundance-free gene patterns, excluding patters below a length of three genes. To focus on more frequent patterns the user can increase the parameter quorum. Increasing the parameter minimal pattern length results in a lower numb ...
Ch. 8: Presentation Slides
Ch. 8: Presentation Slides

... close together are often transferred as a unit to recipient cell = cotransformation • The greater the distance between genes the less likely they will be transferred as a unit to recipient cell • Cotransformation is used to map gene order ...
< 1 ... 420 421 422 423 424 425 426 427 428 ... 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