Talk:Second-degree relative

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What kind of term[edit]

Is this a colloquial term, or a scientifically-defined (or legal) term?

Does it have a specific legal meaning, and is it consistent across legal jurisdictions?

A St. Louis Post-Dispatch article seems to indicate that, in Missouri, at least, it might include a spouse, who would have no common genes. http://www.stltoday.com/news/local/govt-and-politics/could-a-failure-to-use-envelopes-doom-an-election/article_6c8b5233-f497-5cbe-848f-d26c84741110.html "Missouri law requires that any ballots hand-delivered to the board come from the voter or a second-degree relative — such as a spouse, parent or grandparent."

Does it also include people who share MORE than 25% of a person's genes? For instance, siblings of children? — Preceding unsigned comment added by Evx (talk • contribs) 15:55, 27 August 2016 (UTC)[reply]

@Evx: It's likely people use it in a number of ways. The technical meaning (what this page is about) is based on genetics. It looks like that source is referring to this Missouri law, which says:

(25) "Relative within the first degree by consanguinity or affinity", a spouse, parent, or child of a person;
(26) "Relative within the second degree by consanguinity or affinity", a spouse, parent, child, grandparent, brother, sister, grandchild, mother-in-law, father-in-law, daughter-in-law, or son-in-law;

So the source you linked above seems to be talking about "second-degree (or less) relative, either by blood or by affinity". — Rhododendrites ^talk \\ 16:28, 27 August 2016 (UTC)[reply]

Is the definition accurate?[edit]

"A second-degree relative (SDR) is someone who shares 25% of a person's genes." I would like to ask whether the phrase "on an average" needs to be appended to this sentence? Webmaestro365 (talk) 18:55, 16 August 2020 (UTC)[reply]