Structure of Chromosome Cell Cycle and Division Very Short Ans Selina Solutions for ICSE Class 10. In this article you will get the solutions of Very Short Answer Type Questions as council latest syllabus. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.
Structure of Chromosome Cell Cycle and Division Very Short Ans Selina Solutions for ICSE Class 10
| Board | ICSE |
| Subject | Biology |
| Class | 10 |
| Book | Selina Concise |
| Chapter-2 | Structure of Chromosome Cell Cycle and Division |
| Topics | Very Short Answer Type Questions |
| Session | 2024-25 |
Very Short Answer Type Questions
(Structure of Chromosome Cell Cycle and Division Selina Solutions for ICSE Class 10 Biology)
Que-1: Name the following:
(a) The repeating components of each DNA strand lengthwise.
(b) The complex structure consisting of DNA strand and a core of histones.
(c) The type of bond which joins the complementary nitrogenous bases.
(d) The three components of nucleotide.
Sol:
(a) Nucleotides
(b) Nucleosome
(c) Hydrogen Bond
(d) Phosphate, Sugar and Nitrogenous base.
Que-2: Imagine one cell (A) has undergone one mitotic division and another cell (B) has completed its meiotic division. How many daughter cells would the two produce?
Cell A: ……………
Cell B: ……………
Sol:
Cell A produces 2 cells
Cell B produces 4 cells
Que-3: Match the events given in column A with the phase in mitotic cell division in column B
| Column “A” | Column “B” |
|---|---|
| (a) Chromosomes get arranged in a horizontal plane at the equator. | Anaphase |
| (b) Daughter chromosomes move to the opposite poles of a spindle. | Prophase |
| (c) Chromosomes become visible as fine long threads. | Telophase |
| (d) Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. | Metaphase |
Sol:
| Column “A” | Column “B” |
|---|---|
| (a) Chromosomes get arranged in a horizontal plane at the equator. | Metaphase |
| (b) Daughter chromosomes move to the opposite poles of a spindle. | Anaphase |
| (c) Chromosomes become visible as fine long threads. | Prophase |
| (d) Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. | Telophase |
Que-4: Fill in the blanks
(a) DNA replicates in the …………… phase of the cell cycle.
(b) Mitosis occurs in our …………… cells.
(c) Meiosis occurs only in …………… cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have …………… chromosomes each.
(e) During the pairing of chromosomes in meiosis, the …………… chromosomes come to lie side by side.
(f) The two non-sister chromatids of a paired chromosome are attached to each other at …………… during the process of crossing over.
Sol:
(a) DNA replicates in the synthesis phase of the cell cycle.
(b) Mitosis occurs in our somatic (body) cells.
(c) Meiosis occurs only in reproductive cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have 23 chromosomes each.
(e) During the pairing of chromosomes in meiosis, the homologous chromosomes come to lie side by side.
(f) The two non-sister chromatids of a paired chromosome are attached to each other at chiasma during the process of crossing over.
–: Structure of Chromosome Cell Cycle and Cell Division Very Short Ans Selina Solutions :–
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