File:Human idiogram-chromosome Y.jpg

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Human Idiogram - Chromosome Y

Idiogram- A drawing or photograph of the chromosomes of a particular cell.


  • Y chromosome - 59 million base pairs, hypervariable in length, mostly non-functional repeats
  • Current known protein-coding genes = 48 including SRY
  • SRY encodes a 204 amino acid protein that is a member of the HMG (High mobility group) box class of DNA-binding proteins. Transcription factors bind to specific sites of DNA and regulates the transcription (expression) of other genes.


Links: Y Chromosome | image - Human Y chromosome SRY region | Genital - Male Development | Genome View - Y chromosome | Ensembl - Y chromosome | OMIM - SRY
Human Chromosomes: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | X | Y  
Idiogram Chromosome Banding - The term refers to the light and dark pattern, seen after staining with a dye, of individual chromosomes identified in metaphase. It is only in meiosis and mitosis during metaphase that chromosomes can be easily identified, during the normal cell life (interphase) the chromosomes are unravelled and distributed within the nucleus in chromosome territories. A band is that part of a chromosome which is clearly distinguishable from nearby regions by appearing darker or brighter with one or more banding techniques.
Human Idiogram: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | X | Y
Genetic abnormality locations: 1-4 | 5-8 | 9-12 | 13-16 | 17-20 | 21-XY | sSMC
Inheritance Pattern images: Genetic Abnormalities | autosomal dominant | autosomal recessive | X-linked dominant (affected father) | X-Linked dominant (affected mother) | X-Linked recessive (affected father) | X-Linked recessive (carrier mother) | mitochondrial inheritance | Codominant inheritance | Genogram symbols | Genetics
Links: Genetics | Abnormal Development - Genetic

Cite this page: Hill, M.A. (2024, April 19) Embryology Human idiogram-chromosome Y.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human_idiogram-chromosome_Y.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current13:52, 23 April 2011Thumbnail for version as of 13:52, 23 April 201131 × 142 (2 KB)S8600021 (talk | contribs)==Human Idiogram - Chromosome Y== Idiogram- A drawing or photograph of the chromosomes of a particular cell. This drawing does not include the mitochondrial DNA. {{Human chromosomes}} Category:Genetics Category:Chromosome [[Category:Molecular