作者bluemagpie (貞心相廷)
看板TransBioChem
標題生物問題請教
時間Sun Apr 24 20:11:33 2011
1.Which process hinder clarification of the deepest branchings in a
phylogenetic tree that depicts the origins of the tree domains?
(A)binary fission (B)mitosis (C)meiosis (D)horizontal gene transfer
(E)gene duplication
答案是給D不曉得這題答案要如何去解釋呢
2.Tree living spices X, Y, and Z share a common ancestor T, as do extinct
spices U and V. Agrouping that includes spices T, X, Y,and Z makes up
(A)a valid taxon (B)a monophyletic clade (C)an ingroup, with spices Uas
the outgoup (D)a paraphyletic group (E)a polyphyletic group
答案是給D但是E為什麼錯呢
煩請高手解答謝謝
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1F：推 iamdada:你看的問題好難喔...考試會考嗎 @@ 04/24 20:14
2F：→ confused7749:這個好像沒有很難耶 04/24 20:33
3F：推 confused7749:我記得在普生講親緣關係那邊有講到第一題的觀念 04/24 21:16
4F：→ confused7749:第二題的畫就回去搞懂每個分類學的定義 所以才說不難 04/24 21:16