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ICSE Class 10 Cell Biology: Cell Division & Chromosomes — practice questions — page 2

Explore 120 free Cell Biology: Cell Division & Chromosomes questions in ICSE Class 10 Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Cell Biology: Cell Division & Chromosomes questions and exercises with answers

Showing questions 31–60 of 120.

What is the first meiotic division separating?Read the answer and worked solution →What is pulled apart during the second meiotic division?Read the answer and worked solution →After meiosis I, does another DNA replication round occur before meiosis II?Read the answer and worked solution →What pairs during prophase I of meiosis?Read the answer and worked solution →What term names the exchange of information between homologous chromosomes?Read the answer and worked solution →How does meiosis help preserve chromosome number?Read the answer and worked solution →Which process follows meiosis when two human gametes fuse?Read the answer and worked solution →Why are meiotic products genetically varied?Read the answer and worked solution →Which division produces two genetically identical daughter cells?Read the answer and worked solution →Which process produces gametes rather than body-cell copies?Read the answer and worked solution →Which process directly partitions cytoplasm after nuclear division?Read the answer and worked solution →What is the sequence after interphase in a eukaryotic cycle?Read the answer and worked solution →At what point is a cell’s nuclear DNA amount doubled?Read the answer and worked solution →What is the relationship between interphase and M phase?Read the answer and worked solution →Which mitotic event occurs before chromosome alignment?Read the answer and worked solution →What is the role of spindle fibers in mitosis?Read the answer and worked solution →Which stage comes immediately after metaphase in mitosis?Read the answer and worked solution →Which process divides the parent cell’s genome into two nuclei?Read the answer and worked solution →What is the principal significance of meiosis for sexual reproduction?Read the answer and worked solution →Meiosis I is called reductional because it does what?Read the answer and worked solution →What does a chromosome package?Read the answer and worked solution →Which proteins help package eukaryotic DNA?Read the answer and worked solution →What is the DNA-protein complex in eukaryotic chromosomes called?Read the answer and worked solution →What is the first basic unit of chromosome organization?Read the answer and worked solution →Around which proteins is uncondensed eukaryotic DNA wrapped?Read the answer and worked solution →What joins duplicated chromosome copies?Read the answer and worked solution →What are the joined copies of a duplicated chromosome called?Read the answer and worked solution →When are chromosomes easiest to distinguish under a light microscope?Read the answer and worked solution →Why are chromosomes easiest to see at metaphase?Read the answer and worked solution →What structure holds sister chromatids together?Read the answer and worked solution →

Worked practice questions

What is the first meiotic division separating?

  1. Nuclear envelopes
  2. Cell wall fragments
  3. Homologous chromosomes
  4. Sister chromatids
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Correct answer: C. Homologous chromosomes

Meiosis I segregates homologous chromosomes into separate daughter cells.

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What is pulled apart during the second meiotic division?

  1. The cell walls
  2. Sister chromatids
  3. Homologous pairs
  4. The nucleoli
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Correct answer: B. Sister chromatids

Meiosis II separates sister chromatids into daughter cells.

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After meiosis I, does another DNA replication round occur before meiosis II?

  1. Yes, one full round
  2. No DNA replication
  3. Two more rounds
  4. Only in gametes
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Correct answer: B. No DNA replication

Meiosis II follows meiosis I without an intervening DNA replication round.

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