【問書系列】#8│HKDSE 2022 MC Q4│幾時先見到染色體打交叉│duplicated chromosome 複製染色體│DNA replication 複製│Faith Education

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  • เผยแพร่เมื่อ 25 ม.ค. 2025

ความคิดเห็น • 10

  • @FaithEducation
    @FaithEducation  3 หลายเดือนก่อน

    【挑戰題答案收集區 Leave your answer for the challenge questions here】
    染色體挑戰題 Chromosome Challenge Questions
    State whether the statements are true or false. Explain your answer.
    指出句子是否正確,並解釋你的答案。

    • @Lingrrrrrrr
      @Lingrrrrrrr 3 หลายเดือนก่อน +1

      Hi 梁sir,I would like to try🙋‍♂️,btw I'm not quite sure whether it would be correct😢.Thankyou for taking time to read🙇‍♂️
      1.True,DNA molecule doubled when DNA content doubled which the number of chromatid doubled from 1 to 2
      2.False,no stated,cannot be deduced whether P and Q comes from the same parent
      3.False,W and X are sister chromatid,while homologous chromosomes are non-sister chromatid
      4.False,they are non-sister chromatids,won't have same DNA molecule

    • @FaithEducation
      @FaithEducation  3 หลายเดือนก่อน +1

      hello @Lingrrrrrrr
      All correct with correct explanations.
      Statement 4, you can mention that they (let say X and Y) may have alternative forms of gene {allele} on the corresponding locus in the homologous chromosome (if they are).
      Be confident!! You can do it.

    • @Lingrrrrrrr
      @Lingrrrrrrr 3 หลายเดือนก่อน +1

      @@FaithEducation Thanks🙌

  • @FaithEducation
    @FaithEducation  3 หลายเดือนก่อน +1

    【精彩回顧 Highlights】
    快問快答 EP 3 | autosomes vs sex chromosomes 常染色體和性染色體 | 基本功無得妥協 | Faith Education #shorts
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    DSE Bio│HKDSE 2021 1B Q5│cell division 細胞分裂│chromosome 染色體│mitosis 有絲分裂│Faith Education{雙語Bilingual}
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    提升四倍溫書功效│DSE Bio│HKDSE 2022 MC Q4│chromosome counting 數染色體│chromatids│Faith Education {雙語Bilingual}
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    提升四倍溫書功效│DSE Bio│HKDSE 2023 MC Q6│cell division 細胞分裂│DNA content 成份│Faith Education {雙語Bilingual}
    th-cam.com/video/CfHAGgC8xoo/w-d-xo.html

  • @offmask8640
    @offmask8640 3 หลายเดือนก่อน +1

    1T due to replication lead to each chromatid contain 1 dna molecules
    2F since one is maternal one is maternal
    3F wx are sister chromatids
    4F the allele may various with each chromatid 🤔

    • @FaithEducation
      @FaithEducation  3 หลายเดือนก่อน

      hello @offmask8640
      All correct with correct explanations.
      For statement 2, I just assumed that they are homologous chromosomes in the example.
      In fact, just rely on the diagram, we cannot judge that they are really homologous chromosomes.
      Yes, they are of the same length. However, we don't know whether they have corresponding alleles.
      One thing to be aware, what if the question says that these 2 chromosomes pair up during prophase I. Then, we are more confident that they are homologous chromosomes.

    • @offmask8640
      @offmask8640 3 หลายเดือนก่อน +1

      @@FaithEducation thankq for ur further explanations 😊 I am 2025dser, so I keep following ur video sometimes to watch the analysis of past paper question😂

    • @FaithEducation
      @FaithEducation  3 หลายเดือนก่อน

      @@offmask8640 thank you for supporting. Support you 2025 hkdse as well!!!