不是我要說,不過同一本書,同一章要翻麻煩也至少整章看完再翻.
不曉得你是不是故意漏翻這段:
Sry: the Y chromosome sex determinant
In humans, the major gene for the testis-determining factor resides on the
short arm of the Y chromosome. Individuals who are born with the short arm
but not the long arm of the Y chromosome are male, while individuals born
with the long arm of the Y chromosome but not the short arm are female. By
analyzing the DNA of rare XX men and XY women, the position of the
testis-determining gene has been narrowed down to a 35,000-base-pair region
of the Y chromosome located near the tip of the short arm.
這段有空你自己翻翻吧.
"the DNA of rare XX men and XY women"
※ 引述《A6 (短ID真好)》之銘言：
: ※ 引述《A6 (短ID真好)》之銘言：
: : 噓 myyalga: 那妳們直女的生物學學説定義或權威文章在 110.28.88.239 08/19 02:53
: : → myyalga: 哪裡？ 110.28.88.239 08/19 02:53
: : → myyalga: 哪一篇生物學和妳講，性別的染色體分類是 110.28.88.239 08/19 02:53
: : → myyalga: 如此！ 110.28.88.239 08/19 02:53
: 你好 可以
: 可能因為你是文組
: 所以你對生物學的知識匱乏 我不介意幫您提供
: biological female 的定義
: Developmental Biology. 6th edition.
: https://www.ncbi.nlm.nih.gov/books/NBK9967/
: Primary sex determination is the determination of the gonads. In mammals,
: primary sex determination is strictly chromosomal and is not usually
: influenced by the environment. In most cases, the female is XX and the male
: is XY. Every individual must have at least one X chromosome. Since the female
: is XX, each of her eggs has a single X chromosome. 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 ovaries, and is female; if the egg receives a Y chromosome from the
: sperm, the individual is XY, forms testes, and is male. The Y chromosome
: carries a gene that encodes a testis-determining factor. This factor
: organizes the gonad into a testis rather than an ovary. Unlike the situation
: in Drosophila (discussed below), the mammalian Y chromosome is a crucial
: factor for determining sex in mammals. A person with five X chromosomes and
: one Y chromosome (XXXXXY) would be male. Furthermore, an individual with only
: a single X chromosome and no second X or Y (i.e., XO) develops as a female
: and begins making ovaries, although the ovarian follicles cannot be
: maintained. For a complete ovary, a second X chromosome is needed.
: 主要性別決定是性腺的決定。在哺乳動物中，初級性別決定嚴格由染色體決定，通常不受
: 環境影響。大多數情況下，女性為 XX，男性為 XY。每個人必須至少有一條 X 染色體。
: 由於女性是 XX，她的每個卵子都有一條 X 染色體。男性是XY，可以產生兩種類型的精子
: ：一半帶有X染色體，一半帶有Y染色體。卵子從精子接收到另一條X染色體，則產生的個
: 體是XX，形成卵巢，並且是女性；如果卵子從精子接收到另一條X染色體，則產生的個體
: 是XX，形成卵巢，並且是女性；如果卵子從精子接收到 Y 染色體，則該個體是 XY，形成
: 睪丸，並且是男性。 Y染色體攜帶編碼睪丸決定因子的基因。這個因素將性腺組織成睪丸
: 而不是卵巢。與果蠅的情況不同（下面討論），哺乳動物的 Y 染色體是決定哺乳動物性
: 別的關鍵因素。擁有 5 條 X 染色體和 1 條 Y 染色體 (XXXXY) 的人是男性。此外，只
: 有一條 X 染色體而沒有第二條 X 或 Y（即 XO）的個體發育為女性並開始形成卵巢，儘
: 管卵泡無法維持。對於完整的卵巢，需要第二條 X 染色體。
: : → myyalga: 不是說妳們最科學、最生物，現在要求妳們 110.28.88.239 08/19 02:54
: : → myyalga: 提供定義出處，不過分吧！ 110.28.88.239 08/19 02:54
: 這樣定義可以嗎 還是你認為寫錯了???
: ㄎㄎ