Y chromosome
a special chromosome associated with the sex of many organisms; in human beings this chromosome is present only in males
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Y chromosome
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Y chromosome in Genetic Genealogy
In human genetic genealogy (the application of genetics to traditional genealogy) use of the information contained in the Y chromosome is of particularly interest since, unlike other genes, ...
Y Chromosome
The Y chromosome is one of two sex chromosomes. Humans and other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have X and Y chromosomes in their cells.
Y Chromosome
The Y chromosome presents a number of unique problems to both genetic mapping and gene identification.
Y chromosome A small chromosome which, in humans, is present in one copy in males only.
Y linked A gene which is present on the Y chromosome.
Zygote The diploid cell formed by the fusion of two haploid gametes. In humans. a fertilised egg.
The Y Chromosome
In making sperm by meiosis, the X and Y chromosomes must separate in anaphase just as homologous autosomes do.
Y
Y chromosome
One of the two sex chromosomes, X and Y.
See also: X chromosome, sex chromosome ...
The Y chromosome is considerably smaller than the X chromosome and has a much lower density of genes. In fact, the Y has often been called a "genetic junkyard.
The Y chromosome contains a gene called SRY (for sex-determining region of Y).
Females
Testicular Feminization
...
The Y chromosome carries the gene for testis determination (SRY gene). In developing embryos, the gonads and external genitalia are undifferentiated until about 7 - 8 weeks gestation.
autosome Any chromosome that is not a sex chromosome.
autotomy The self amputation of an appendage. For example, the casting off of a section of a lizard's tail caught in the grasp of a predator. The autotomized appendage is usually regenerated.
Autosome: Any chromosome except a sex chromosome.
Axolotl (Ambystoma mexicanum): Literally meaning water monster (in Aztec), axolotl is a salamander (amphibian) extensively used in the evolutionary immunogenetic studies.
autosome - any chromosome not involved in sex determination.
cell cycle - the progression of a parent cell from creation through growth and development through DNA synthesis to cellular division to produce to daughter cells.
Sons inherit their Y chromosome from their father.
Only a few genes have been identified on the Y chromosome, among them the testis-determining factor (TDF) that promotes development of the male phenotype.
autosomal A locus on any chromosome but a sex chromosome. Not sex-linked. co-dominant alleles Two different alleles at a locus are responsible for different phenotypes, and both alleles affect the phenotype of the heterozygote.
Sex chromosomes The X and Y chromosomes in human beings that determine the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome.
The X and Y chromosomes in organisms that determine the sex of an individual. In human beings females have two X chromosomes in diploid cells; males have an X and a Y chromosome.
Each individual in the GA consisted of a binary chromosome specifying the three-dimensional coordinates of each end of each wire.
Humans normally have 22 pairs of homologous chromosomes and 2 X chromosomes (female) or 1 X and 1 Y chromosome (male). Compare sex chromosomes.
Related Terms:
Chromosome ...
Females are homogametic sex (X: or XX)
Males are heterogametic sex (XY) / Y chromosome is shorter
Involves whole chromosomes instead of individual genes
Phenotypic characteristic is inherited on X, not on Y chromosome ...
Autosomes all the chromosomes other than the X and Y chromosomes
(auto = self; soma = body)
Autotroph an organism‚ such as a plant‚ which makes its own food
(auto = self; troph = food‚ nourish‚ nourishment) ...
The inheritance pattern of genes found on the Y chromosome but not on the X (rare).
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
In humans, females have two X chromosomes, and males have one X chromosome and one Y chromosome. Chromosome that determines the gender (sex) of the individual.
A human cell contains 23 pairs of homologous chromosomes: 22 of them are homologous non-sex chromosomes (or autosomes) and 1 homologous pair of sex chromosomes. In females, the homologous sex chromosomes are 2 X's; in males the X and Y chromosomes.
XYY syndrome -- genetic condition in males with extra Y chromosome (in 1 in 1000 male births). Symptoms: tall stature (over 6'), may including sterility, developmental delay, learning problems.
 See also: Chromosome, Human, Chromosomes, DNA, Organ
  
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