[生物] campbell習題

看板TransBioChem作者 (superego)時間15年前 (2008/12/24 11:25), 編輯推噓2(204)
留言6則, 3人參與, 最新討論串1/1
細胞遺傳學 1.At the end of telophase I of meiosisi and first cytokinesis , there are ________ (A)four haploid cells (B)two diploid cells (C)four diploid cells (D)one haploid ovum and three polar bodies (E)two haploid cells ans(E) Why?減數分裂末期一,答案不是應該是B嗎?希望好心人士相救,謝謝 DNA複製 2若一段DNA長度約30um,此DNA屬B型DNA,試問此段DNA含有多少bps? ANS 88235bps 請問有人知道怎麼計算嘛?感激不盡 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.195.20.185

12/24 23:29, , 1F
同源染色體分開已經是單套,B型的1圈10.5個bps
12/24 23:29, 1F

12/24 23:29, , 2F
剩下的看課本自己算ˇˇ
12/24 23:29, 2F

01/01 00:14, , 3F
30*10^(-6)/3.4*10(-10) B型DNA的鹼基距3.4埃
01/01 00:14, 3F

01/01 00:15, , 4F
應該是這樣吧~
01/01 00:15, 4F

01/05 00:51, , 5F
Meiosis I ==> separation of homologous pairs
01/05 00:51, 5F

01/05 00:51, , 6F
producing two haploid cells ...
01/05 00:51, 6F
文章代碼(AID): #19KQk-ws (TransBioChem)