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Several genes that are required for male development have been located on the Y chromosome, but as far as I know, the "master" gene has not yet been identified.
The male-determining Y has long been considered a vestigial chromosome, a dilapidated repository of genetic material with an ever-dwindling, tiny collection of about 40 genes.
a. Structure of a chromosome (Typical metaphase chromosome): A chromosome is formed from a single DNA molecule that contains many genes.
That's because the Y is the chromosome that makes males male. The outlook is less favorable for the chimpanzee Y chromosome.
In the biological battle between the sexes, the Y chromosome has suffered defeat after defeat. The male-determining chromosome has seen its gene supply shrink from more than 1,000 genes when sex ...
Name male meiosis chromosome segregation ... P GO:0016346 male meiotic chromosome movement towards spindle pole
The chromosome that makes a human male has some odd characteristics. Among them: It swaps DNA only with itself and doesn't share during fertilization. Explains a lot. By Kristen Philipkoski.
NEW YORK -- The human Y chromosome - the DNA chunk that makes a man a man - has lost so many genes over evolutionary time that some scientists have suspected it might disappear in 10 million years.
The human Y chromosome -- the DNA chunk that makes a man a man -- has lost so many genes over evolutionary time that some scientists have suspected it might disappear in 10 million years.
Thus, a Y sperm fertilizing the X egg (remember: all eggs carry only X because females have no Y chromosome) produces an XY zygote (cell produced by union of two gametes) which develops as male;
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