Related topics: genes · dna sequences · chromosomes

Two sets of sex chromosomes determine more than just sex

Why would having two sets of sex chromosomes instead of one benefit a particular species? In the case of one African cichlid fish, the answer may be as variable as the traits that their offspring display.

Gene-editing used to create single sex mice litters

Scientists at the Francis Crick Institute, in collaboration with University of Kent, have used gene editing technology to create female-only and male-only mice litters with 100% efficiency.

Universal traits spotted in early evolution of sex chromosomes

Researchers from Tokyo Metropolitan University have identified unifying features in the early evolution of X and Y chromosomes. Newly evolved sex chromosomes in three fruit fly species showed the same genetic compensation ...

New study sheds light on how X and Y chromosomes interact

Researchers at Lund University in Sweden have investigated how the X and Y chromosomes evolve and adapt to each other within a population. The results show that breaking up coevolved sets of sex chromosomes could lead to ...

Snake sex chromosomes say less about sex and more about survival

Sex-specific chromosomes are a dangerous place to be, if you're a gene. Because these chromosomes—Y chromosomes, in humans—do not have a matching chromosome with which to exchange genetic information, they are prone to ...

The bull Y chromosome has evolved to bully its way into gametes

In a new study, published Nov. 18 in the journal Genome Research, scientists in the lab of Whitehead Institute Member David Page present the first ever full, high-resolution sequence of the Y chromosome of a Hereford bull. ...

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Y chromosome

The Y chromosome is the sex-determining chromosome in most mammals, including humans. In mammals, it contains the gene SRY, which triggers testis development, thus determining sex. The human Y chromosome is composed of about 60 million base pairs.

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