• 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
HGMD® : Human Gene Mutation Database Example Queries for use
HGMD® : Human Gene Mutation Database Example Queries for use

... PMIDs from the primary and the extra references, disease name, gene symbol, and HGVS description. Get all mutations from table “allmut” SELECT allmut.acc_num, extrarefs.acc_num, allmut.pmid, extrarefs.pmid, allmut.disease, allmut.gene, allmut.hgvs FROM allmut, extrarefs WHERE allmut.acc_num=extraref ...
Part 1 Population and Community Dynamics
Part 1 Population and Community Dynamics

... •  variants  can  be  successful  and  lead  to  new  species   •  variants  can  be  unsuccessful  and  die  off  when  faced  with   environmental  pressure   •  variations  in  a  population  arise  from  random  mutations  in   the  D ...
What is genetic testing?
What is genetic testing?

... diseases that show up later in life (late-onset diseases). If you have a relative who has the disease, information from these tests can help you make decisions about preventing or slowing the progress of the disease. Genetic testing is used to identify the risk of late-onset diseases such as: • Brea ...
Vorms final version + images
Vorms final version + images

... cells for a cross involving two genes — two pairs of differential characters. It can be considered as a symbolic expression of Mendel’s second law, which I present below. The Mendelian geneticists in the early 1900‘s developed this symbolism into other forms of representation. For instance, the doub ...
Inheriting Genetic Conditions
Inheriting Genetic Conditions

... gene is also 50 percent (image on page 12). However, in some cases an autosomal dominant disorder results from a new (de novo) mutation that occurs during the formation of egg or sperm cells or early in embryonic development. In these cases, the child's parents are unaffected, but the child may pass ...
Inheriting Genetic Conditions
Inheriting Genetic Conditions

... gene is also 50 percent (image on page 12). However, in some cases an autosomal dominant disorder results from a new (de novo) mutation that occurs during the formation of egg or sperm cells or early in embryonic development. In these cases, the child's parents are unaffected, but the child may pass ...
Inference of natural selection on quantitative traits
Inference of natural selection on quantitative traits

... ton 2011b). The time evolution of allele frequencies in a population can be described using stochastic differential equations and the steady state of a population, balancing the forces of selection (increasing the fitness) and random genetic drift (decreasing the fitness), can be determined using me ...
attached / unattached earlobes
attached / unattached earlobes

Chapter 23
Chapter 23

... –For diploid organisms, the total number of alleles at a locus is the total number of individuals x 2 –The total number of dominant alleles at a locus is 2 alleles for ...
Transmission & maternal effects
Transmission & maternal effects

... or maternal environmental effects! The genotype of the mother determines the phenotype of the progeny: Maternal genes produce RNAs and/or proteins that locate to the egg Function in early development Directly influencing phenotype All the progeny of a single maternal parent have the same phenotypes, ...
The evolution of the peculiarities of mammalian sex chromosomes
The evolution of the peculiarities of mammalian sex chromosomes

... of species with sex chromosomes of equal size are compared with those of related species with Y degeneration. The relatively recent origin of the sex chromosomes of dioecious plants and the availability of closely related species that lack them make plants especially suitable for such studies,(16) a ...
Class Exercise: Relationship between organismal performance and
Class Exercise: Relationship between organismal performance and

... Selection -- the fact that certain genotypes (combinations of alleles within individuals) have a relatively higher chance of survivorship or fecundity than other genotypes, or higher fitness. It is important to remember that fitness is a combined result of the genotype’s phenotypic expression and th ...
Genetics of Drosophila
Genetics of Drosophila

... 1. Determine the degrees of freedom (df) for your experiment. It is the number of observed categories minus one. For example, if there are two phenotypes, the would be one degree of freedom. 2. To use the table (at the end of this lab), we have to determine the α (acceptable error rate, a). For the ...
Reebop Introduction paragraph:
Reebop Introduction paragraph:

... phenotypes for some of the traits. You should also discuss heredity and explain how these traits were passed on from the parents (Clyde and Claire). Terms such as; genotype, phenotype, pure, hybrid, homozygous, heterozygous, dominant, recessive, should appear in your paragraph. You should also use t ...
CHAPTER 13 Gene Mapping in Eukaryotes
CHAPTER 13 Gene Mapping in Eukaryotes

... 2. Classical genetics analyzes the frequency of allele recombination in progeny of genetic crosses. a. New associations of parental alleles are recombinants, produced by genetic recombination. b. Testcrosses determine which genes are linked, and a linkage map (genetic map) is constructed for each ch ...
Steve Downes
Steve Downes

... (1) VP = VG + VE (the phenotypic variance is the variance due to genes plus the variance due to the organisms' environment). (2) hb2 = VG/VP (broad sense heritability, hb2 is “the proportion of phenotypic differences due to all sources of genetic variance” Plomin 1990, 234). (3) h2 = VA/VP (narrow s ...
Alzheimer`s Disease Genetics
Alzheimer`s Disease Genetics

... ■ Answer basic questions—What makes the disease process begin? Why do some people with memory and other thinking problems ...
The long-term evolution of multi- locus traits under
The long-term evolution of multi- locus traits under

... may occur at every locus. We use the index k to arbitrarily label the different alleles that occur within the population at a specified locus l . Correspondingly, alk and xlk denote the kth allele at the lth locus and its phenotypic effect (allelic effect), respectively. We initially assume that loc ...
Document
Document

... Nucleotide substitution in the mtDNA lysine tRNA. ...
Meiosis and Punnett Squares
Meiosis and Punnett Squares

... Like mitosis, meiosis is a form of eukaryotic cell division. Unlike mitosis, meiosis is when when a single eukaryotic cell divides into four daughter cells with half the number of chromosomes that the original cell had. These daughter cells are called gametes, or sex cells, and become the sperm or e ...
chapter_13b
chapter_13b

... Nucleotide substitution in the mtDNA lysine tRNA. ...
Heredity:
Heredity:

... Like mitosis, meiosis is a form of eukaryotic cell division. Unlike mitosis, meiosis is when when a single eukaryotic cell divides into four daughter cells with half the number of chromosomes that the original cell had. These daughter cells are called gametes, or sex cells, and become the sperm or e ...
Population genetics models of common diseases
Population genetics models of common diseases

... the properties of disease alleles can also be investigated by population genetics modeling based on evolutionary principles. An important difference between disease mapping and population genetics studies is that the latter focus on the effects of susceptibility alleles on evolutionary fitness rathe ...
Biology 3rd Quarter Exam Review 4-4-12
Biology 3rd Quarter Exam Review 4-4-12

... 11. Explain what is meant by incomplete dominance. 12. Explain what is meant by a trait and give an example of one. 13. Explain what a hybrid is and how they are formed. 14. Explain what self-pollination is and what allows it to happen in pea flowers. 15. Explain what is meant by cross pollination a ...
bio genetics review guide - Google Docs
bio genetics review guide - Google Docs

... the  characteristics  of  an  organism.   Dominant  allele   an  allele  that  has  the  same  effect  on  the  phenotype  whether  it  is  present  in   the  homozygous  or  heterozygous  state   Recessive  allele   an  allele  that  o ...
< 1 ... 189 190 191 192 193 194 195 196 197 ... 841 >

Quantitative trait locus

A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait). The QTL typically is linked to, or contains, the genes that control that phenotype. QTLs are mapped by identifying which molecular markers (such as SNPs or AFLPs) correlate with an observed trait. This is often an early step in identifying and sequencing the actual genes that cause the trait variation.Quantitative traits are phenotypes (characteristics) that vary in degree and can be attributed to polygenic effects, i.e., the product of two or more genes, and their environment.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report