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4 dni temu · The female has two X chromosomes, and all female egg cells normally carry a single X. The eggs fertilized by X-bearing sperm become females (XX), whereas those fertilized by Y-bearing sperm become males (XY).
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Is XX male or female? XX is female. One X chromosome is inherited from the mother and one from the father. The X chromosome itself is about three times larger than the Y chromosome.
The XX/XY sex-determination system is the most familiar, as it is found in humans. The XX/XY system is found in most other mammals, as well as some insects. In this system, females have two of the same kind of sex chromosome (XX), while males have two distinct sex chromosomes (XY).
In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.
In most mammals, females are XX, and can pass along either of their Xs; since males are XY they can pass along either an X or a Y. Females in such species receive an X chromosome from each parent while males receive an X chromosome from their mother and a Y chromosome from their father.
14 gru 2023 · Most of us were raised with the idea that there are two sexes: male and female. We’re usually told that people with XY chromosomes are male and people with XX chromosomes are female.
26 paź 2020 · Here’s what’s regarded as the “norm”: XY chromosomes = penis & testes = man. XX chromosomes = vagina & ovaries = woman. Gender is subjective to each person, and sex organs don’t dictate gender. People with penises aren’t necessarily men, and people with vaginas aren’t necessarily women.
