• 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
Human Inheritance
Human Inheritance

... • This is because they can have only one recessive allele and not have a dominant allele mask the trait. • Red-Green colorblindness is an example. • A Carrier is someone who has one recessive and one dominant allele. • A Carrier does not have the trait but can pass it to her offspring • Only females ...
DNA - PGS Science
DNA - PGS Science

... • Children inherit features from their parents • If two parents have a certain characteristic then their child may show it even more (e.g. Mr Small + Little Miss Tiny = Mr Very Small!) • Some things such as glasses, scars and muscles we get from our environment, they are not inherited. ...
Imprinting of the Y Chromosome Influences Dosage Compensation
Imprinting of the Y Chromosome Influences Dosage Compensation

... C(1)DX y1f1; [w14D4.3] females. To obtain males with maternal and paternal roX1 roX2 chromosomes from the same mothers, roX1ex6 roX2/Df(1)nod FM7a; [w14D4.3]/1 females were generated. These females have nonexchange X chromosomes, lack nod, and display .50% nondisjunction of their X chromosomes, cons ...
Chapter 11 – Mendelian Genetics
Chapter 11 – Mendelian Genetics

... When two gametes fuse, a zygote is formed. The haploid number of each gamete combine to form a diploid number zygote. The offspring may have some similarities with one or both of the parents and due to crossing-over, the zygote will also have its own unique characteristics. Genetics is the study of ...
Anaphase I
Anaphase I

... carry genes that determine if offspring will be female or male • Human females have a homologous pair of X chromosomes (XX) • Human males have one X and one Y chromosome • The 22 pairs of chromosomes that do not determine sex are called autosomes ...
GENE”.
GENE”.

... Microscopes were not very informative about G phase but its chemistry enabled division into: G1 (or Gap 1) – is “early interphase” and occurs after cytokinensis, the last cell division, but before start of DNA synthesis. Cell recovers from previous cell division and grows larger. Cells that do not ...
third of four for Chapter 9
third of four for Chapter 9

... transfer any bacterial gene, the process is called generalized transduction ...
Genetics Since Mendel A. Incomplete Dominance
Genetics Since Mendel A. Incomplete Dominance

... cystic fibrosis, are caused by recessive genes. 2. Some recessive genes are the result of a mutation within the gene. 3. Many of these alleles are rare. ...
poor homologous synapsis 1 a novel gene required for homologous
poor homologous synapsis 1 a novel gene required for homologous

...  Detection of SNPs can be done without gels: highly automated/high throughput and/or highly parallel (simultaneous scoring of MANY markers) ...
The Chromosomes of a Frimpanzee
The Chromosomes of a Frimpanzee

... We’ve now spent a lot of time learning about chromosome movement and meiosis, but what does this have to do with frimpanzees and how they look? Let’s look at just one aspect of frimpanzees looks - hair color. Frimpanzees have either brown or blue hair and it can be either curly or straight. The gene ...
Practice with Punnett Squares
Practice with Punnett Squares

... Two of the puppy’s chromosomes are shown above. It is a homologous pair because each chromosomes contains alleles (versions of a gene) that code for the same traits. One of the chromosomes in the pair came from the mother and one came from the father. The only difference between the two is that one ...
Microarrays: The Future of Prenatal Genetic Testing
Microarrays: The Future of Prenatal Genetic Testing

...  Fewer probes, maximal coverage of regions known to have genes with potential to cause problems  Whole genome arrays  More dense coverage of the whole genome ...
Generation of the chromosome sequences
Generation of the chromosome sequences

... insertion; one was polymorphic and in the other case all individuals agreed with the BAC). In eight cases, primers could not be chosen because the sequence was too repetitive. In eight cases, all genomic samples agreed with the BAC suggesting an error in the mRNA or a highly rare polymorphism. In tw ...
“There is no doubt that man, as an animal, inherits characteristics
“There is no doubt that man, as an animal, inherits characteristics

... bottles filled with Drosophila was a male fly with rather than the normal red eyes. Morgan realized the implications of this immediately; the birth of this single spontaneous mutant—this one male fly with white eyes—allowed him to begin addressing some key questions in heredity: How did this white e ...
Dragon Genetics 1 Teacher Prep
Dragon Genetics 1 Teacher Prep

... that both sexes are equally likely to inherit an autosomal genetic condition such as sickle cell anemia. ...
8.7 Mutations
8.7 Mutations

... 1. Replication errors can cause mutations. 2. Mutagens, such as UV rays and chemicals, can cause mutations. 3. Some cancer drugs use mutagenic properties to kill cancer cells. 4. Mutations happen regularly 5. Almost all mutations are neutral 6. Many mutations are repaired by enzymes. 7. Some types o ...
Gene Section IGK (Immunoglobulin Kappa) Atlas of Genetics and Cytogenetics
Gene Section IGK (Immunoglobulin Kappa) Atlas of Genetics and Cytogenetics

... IGKJ segments, and a unique IGKC gene. The 76 IGKV genes are organized in two clusters separated by 800 kb. The IGKV distal cluster (the most 5' from IGKC and in the most centromeric position) spans 400 kb and comprises 36 genes. The IGKV proximal cluster (in 3' of the locus, closer to IGKC, and in ...
Document
Document

... · The second meiotic division results in the formation of four cells, each containing half the number of single stranded chromosomes. These are called haploid (1n) cells Sources of Variation during Meiosis The process of meiosis provides the opportunity for the shuffling of chromosomes and the genet ...
8.7 Mutations
8.7 Mutations

... 1. Replication errors can cause mutations. 2. Mutagens, such as UV rays and chemicals, can cause mutations. 3. Some cancer drugs use mutagenic properties to kill cancer cells. 4. Mutations happen regularly 5. Almost all mutations are neutral 6. Many mutations are repaired by enzymes. 7. Some types o ...
From linkage analysis to linkage disequilibrium mapping: the case of
From linkage analysis to linkage disequilibrium mapping: the case of

... Linkage analysis is a powerful tool for detecting ‘major’ genes which does not require a candidate and is, therefore, a means of genome screening. However, its main limitation is its low-resolution mapping of the linked chromosomal interval (usually some cM), which could contain tens, or hundreds, o ...
5th Grade Science Ch. 7 Vocabulary
5th Grade Science Ch. 7 Vocabulary

... Gene Instinct Life Cycle Mitosis ...
Structural and molecular differentiation of sex
Structural and molecular differentiation of sex

... Once the crossing-over is suppressed, the number of mutant alleles will increase, since they only can be removed by a highly improbable reverse mutation (Charlesworth 1991). The second mechanism shaping the Y and W chromosome is hitchhiking by favourable mutations. It is a common event depending on ...
2015.04.09.UMinn Resurgence of Ref Quality Genomes
2015.04.09.UMinn Resurgence of Ref Quality Genomes

... •  Extremely high sequence identity (>99.9%) •  Thousands of gaps filled, hundreds of mis-assemblies corrected •  Complete gene models, promoter regions for nearly every gene •  True representation of transposons and other complex features •  Opportunities for studying large scale chromosome evoluti ...
X chromosome inactivation- Review
X chromosome inactivation- Review

...  Lyon hypothesis- one of the two X chromosomes in female is inactivated; all but one is inactivated if multiple X chromosomes - referred to as “dosage compensation” ...
2 introduction - diss.fu
2 introduction - diss.fu

... rearrangements or to single gene mutations. Constitutive changes in the number or structure of chromosome 21 can have a variety of effects, including mental retardation, delayed development, and characteristic facial features. Changes to chromosome 21 can include a missing segment of the chromosome ...
< 1 ... 55 56 57 58 59 60 61 62 63 ... 290 >

Y chromosome



The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals. The other is the X chromosome. Y is the sex-determining chromosome in many species, since it is the presence or absence of Y that determines the male or female sex of offspring produced in sexual reproduction. In mammals, the Y chromosome contains the gene SRY, which triggers testis development. The DNA in the human Y chromosome is composed of about 59 million base pairs. The Y chromosome is passed only from father to son. With a 30% difference between humans and chimpanzees, the Y chromosome is one of the fastest evolving parts of the human genome. To date, over 200 Y-linked genes have been identified. All Y-linked genes are expressed and (apart from duplicated genes) hemizygous (present on only one chromosome) except in the cases of aneuploidy such as XYY syndrome or XXYY syndrome. (See Y linkage.)
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report