問個問題,屌你DSE BIO 點解我睇你地D題,全部都係Medical 既多,到底份卷目的係Bio 定係Medical?
Medical 係bio
所以無乜問題
Medical 本身就係highly related to bio架啦
我覺得問 Gene 問題好過Medical
Medical 應該基於化學多D.
問gene 深得滯 全港就炒架啦
好多人會混亂Mendel law inheritance 推non sexual linkage and sexual linkage
你有留意dse pp mc / al就知
一出就9成人炒
Mendel law係DSE野黎咩
讀到Year 3都未學過
This is not out c gwaaaa
Medical 本身就係highly related to bio架啦
我覺得問 Gene 問題好過Medical
Medical 應該基於化學多D.
問gene 深得滯 全港就炒架啦
好多人會混亂Mendel law inheritance 推non sexual linkage and sexual linkage
你有留意dse pp mc / al就知
一出就9成人炒
Mendel law係DSE野黎咩
讀到Year 3都未學過
This is not out c gwaaaa
學到野 唔該巴打
Ok.. egg cell
即係assume 呢一個位係meiosis 2
Ok 樓主 你贏
Ok.. egg cell
即係assume 呢一個位係meiosis 2
Ok 樓主 你贏
對唔住 可能我第二題誤導左你，但係假如你呢度分唔到type of cell division，你其實答唔到我幾多N嗰d
Ok.. egg cell
即係assume 呢一個位係meiosis 2
Ok 樓主 你贏
對唔住 可能我第二題誤導左你，但係假如你呢度分唔到type of cell division，你其實答唔到我幾多N嗰d
唔係阿 你出得有心思
0誤導
係我無睇清問題ja!!
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
Dse JJs記得啦
Ok.. egg cell
即係assume 呢一個位係meiosis 2
Ok 樓主 你贏
對唔住 可能我第二題誤導左你，但係假如你呢度分唔到type of cell division，你其實答唔到我幾多N嗰d
唔係阿 你出得有心思
0誤導
係我無睇清問題ja!!
其實係有啲既，佢叫你睇圖，無叫你睇題
Q5 其實我覺得樓主無錯, 因為樓主話DNA content
DNA content =/= ploidy
佢DNA content like in meiosis is double but it is a haploid like your case
因為DNA content refer to number of chromosomes
因為ploidy refer to number of SETs of chromosomes
個人認為
Q5 其實我覺得樓主無錯, 因為樓主話DNA content
DNA content =/= ploidy
佢DNA content like in meiosis is double but it is a haploid like your case
因為DNA content refer to number of chromosomes
因為ploidy refer to number of SETs of chromosomes
個人認為
Q5 其實我覺得樓主無錯, 因為樓主話DNA content
DNA content =/= ploidy
佢DNA content like in meiosis is double but it is a haploid like your case
因為DNA content refer to number of chromosomes
因為ploidy refer to number of SETs of chromosomes
個人認為
yup
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
[quote][quote][quote]今日會抽啲考到concept嘅題目同大家brainstorm下，理論上大家要識答因為只係pastpaper，nothing fancy
今日係2013 DSE MC Q18
做過pp嘅就會知道答案係D (32%答對率)。
希望大家回答以下問題：
1. 乜唔係好似一個蝴蝶結咁樣嘅型狀先係一個染色體(chromosome)咩?
2. 你從圖中細胞嘅乜嘢特徵去分辨佢做緊邊種細胞分裂呢?
3. Chromatid, chromatin, chromosome三者有乜分別呢?
4. 圖中細胞做完圖中嘅細胞分裂之後，DNA content of daughter cells in terms of N 係幾多呢?
5. 圖中細胞做圖中嘅細胞分裂之前，DNA content of the cell shown in the figure in terms of N係幾多呢?
6. 圖中細胞做圖中嘅細胞分裂之前，number of chromosomes係幾多呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
咁如果1 set chromosome=N既話呢?
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
咁如果1 set chromosome=N既話呢?
樓上解釋左
DNA content =/= ploidy
Meiosis 可以DNA content double but haploid
詳情可以google
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
咁如果1 set chromosome=N既話呢?
樓上解釋左
DNA content =/= ploidy
Meiosis 可以DNA content double but haploid
詳情可以google
其實問你幾多N，就應該用set of chromosome去諗
所以之前我唔應該將no. of DNA content同N掛鈎，兩樣野嚟，我搞錯左
不過考試都未必咁樣問
我相信佢只要求你知All four daughter cells formed after meiotic cell division is haploid (1N) and each of the four duaghter cells contain one DNA copies.
總而言之，你識做2015 Q2(c)就代表你明
1. 唔係。好似一個蝴蝶結嗰啲chromosome contain duplicated DNA，蝴蝶結係計算作一個chromosome，但係佢有2 copies of DNA，呢個大家要留意。 當sister chromatids separate，嗰兩個separated chromatids會各被視為一個chromosome，所以唔存在蝴蝶結分開，産生半個chromosome x2。
2. Sorry問得唔好。你要留意埋題目"forming egg cell"先conclude到佢做緊 second meitoic cell division。
3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation
4. 1N (one copies of DNA)
5. 2N (two copies of DNA)
6. number of chromosomes = 4
N好似唔係咁解？
2N無記錯係paternal+ maternal
只要嗰對chromosomes無咗其中一個，咁個status就只可以叫做1N
我以前聽呀sir講係以no. of copies做單位
你咁講一講我都要查證下先
冇錯 你啱
更正：
4. 1N (only one chromosome inherited from either of the parent)
5. 1N (only one chromosome inherited from either of the parent)
唔好各位DSE jj 小弟都錯左
即係duplicate左之後係2N
1st division之後係N
2nd division之後都係N
唔係
DNA content in terms of N
After Duplicate 4N
(during and after) Meiosis 1 :
2N since 2 daughter cells are formed
During meiosis 2: 2N
After Meiosis 2: 1N
咁如果1 set chromosome=N既話呢?
樓上解釋左
DNA content =/= ploidy
Meiosis 可以DNA content double but haploid
詳情可以google
其實問你幾多N，就應該用set of chromosome去諗
所以之前我唔應該將no. of DNA content同N掛鈎，兩樣野嚟，我搞錯左
不過考試都未必咁樣問
我相信佢只要求你知All four daughter cells formed after meiotic cell division is haploid (1N) and each of the four duaghter cells contain one DNA copies.
總而言之，你識做2015 Q2(c)就代表你明
