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What is hereditary from a cow
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<blockquote data-quote="Bright Raven" data-source="post: 1419178" data-attributes="member: 27490"><p>Nesikep, excerpted from your post:</p><p></p><p><strong>...that 30 chromosomes passed from each parent,.. <u>that the statistical average right</u>? Correct me if I'm wrong, but in some cases the split may be 20/40 (to get the 60 chromosomes) from one parent or the other.</strong></p><p></p><p>In cattle where the diploid chromosome number is 60, 30 chromosomes are contributed by the egg and 30 are contributed by the sperm. <u>That is not a statistical function</u>. It is the normal state. There are chapters written in text books on abnormalities in chromosome number. Sometimes chromosomes adhere to their homologue when they line up on the equatorial plate during meiosis, and an extra chromosome is pulled into one of the gametes.</p><p></p><p>There is never 20 in the egg and 40 in the sperm to reach the diploid number of 60.</p></blockquote><p></p>
[QUOTE="Bright Raven, post: 1419178, member: 27490"] Nesikep, excerpted from your post: [b]...that 30 chromosomes passed from each parent,.. [u]that the statistical average right[/u]? Correct me if I'm wrong, but in some cases the split may be 20/40 (to get the 60 chromosomes) from one parent or the other.[/b] In cattle where the diploid chromosome number is 60, 30 chromosomes are contributed by the egg and 30 are contributed by the sperm. [u]That is not a statistical function[/u]. It is the normal state. There are chapters written in text books on abnormalities in chromosome number. Sometimes chromosomes adhere to their homologue when they line up on the equatorial plate during meiosis, and an extra chromosome is pulled into one of the gametes. There is never 20 in the egg and 40 in the sperm to reach the diploid number of 60. [/QUOTE]
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