標題: gene既問題 [打印本頁] 作者: 小霞的fans 時間: 25/1/2010 04:50 PM 標題: gene既問題 做過一題mc係.. which of the following descriptions about a gene are correct? 1.it may undergo mutation 2.it is made of DNA and proteins 3.it determines the types of protein a cell make
A.1 and 2 B.1 and 3 C.2 and 3 D.1,2 and 3
我想知點解答案係B.. 佢唔係由DNA同PROTEIN組成架咩!? DNA由proteins組成架喎..我有咩mistake><作者: Royal 時間: 25/1/2010 06:00 PM DNA係核酸(nucleric acid)的一種，並非protein作者: orb 時間: 26/1/2010 07:15 PM Virus has a protein coat, but made up of genetic materials
可能樓主搞錯呢樣野作者: hk56740 時間: 2/2/2010 08:37 PM 標題: RE: gene既問題 DNA(Deoxyribonucleic acid) consist of 2 polynucleotides wrapping around each other(double helix),a strand of polynucleotideis linked together with nucleotides by condensation.Each nucleotide is composed ofa phosphate group ,a base (guanine ,cytosine ,adenine or thymine) and a five carbon sugar(deoxyribose). 所以,DNA唔係由protein組成架.作者: lawkanok 時間: 10/2/2010 07:11 PM gene其實係DNA上o既nitrogen base組成,由DNA同protein組織o既係chromosome