The male, being XY, can generate two types of sperm: half bear the X chromosome, half the Y. If the egg receives another X chromosome from the sperm, the resulting individual is XX, forms …

In typical XX embryos, cells secrete estrogen, which drives the body toward the female pathway. In Y-centered sex determination, the SRY gene is the main gene in determining male …

2024年8月29日 · If the egg receives an X chromosome from the sperm, the fertilized egg is XX, or female. But if the egg gets a Y chromosome, the baby is XY, or male.

2025年3月17日 · sex is determined after fertilization — not by sex chromosomes deposited in the egg. The choice is usually determined by the temperature at which early embryonic …

2023年3月15日 · Protocol to generate XX eggs from XY mouse embryonic stem cells. A screen of mouse stem cells that exploits their propensity to gain or lose chromosomes in cell culture has …

2023年10月19日 · Hence, an egg with a Z/W chromosome decides the primary sex. The XX-XO system operates in some grasshopper species. Here, the males lack a Y chromosome, and …

If an X-chromosome carrying sperm (cell “3”) fertilizes the X-chromosome-carrying egg, then a diploid zygote with two X chromosomes (XX) results. That zygote will develop into a female. If …

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2021年2月3日 · The union of an abnormal XX egg and a normal Y- sperm results in trisomy of sex (X) chromosome. This is a type of sex chromosomal abnormality where the individual has 47 …