Structure of Chromosome Cell Cycle Division Short Ans Selina Solutions Concise Biology for ICSE Class 10 Ch-2. In this article you will get the solutions of 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 Cell Division Short Ans Type
(Selina Solutions Concise Biology for ICSE Class 10 Ch-2)
| Board | ICSE |
| Subject | Biology |
| Class | 10 |
| Book | Selina Concise |
| Chapter-2 | Structure of Chromosome Cell Cycle and Cell Division |
| Topics | Short Answer Type Questions |
| Session | 2024-25 |
Short Answer Type Questions
(Structure of Chromosome Cell Cycle and Cell Division Selina Solutions Concise Biology for ICSE Class 10 Ch-2)
Que-1: Name these:
(a) Two main constituents of Chromatin
(b) Two kinds of Nucleic acids
(c) Three components of a Nucleotide
(d) Four Nitrogenous bases
(e) Two kinds of Nitrogenous bases
(f) Two components of Nucleosome
(g) Two kinds of Cell division
(h) Four main phases of Karyokinesis
(i) Two steps of the process Mitosis
(j) Two kinds of haploid cells of human body
Sol:
(a) DNA and Histones
(b) RNA and DNA
(c) Phosphate, Sugar and Nitrogenous bases
(d) Adenine, Guanine, Thymine and Cytosine
(e) Purine and Pyrimidine
(f) DNA and Histone
(g) Mitosis and Meiosis
(h) Prophase, Metaphase, Anaphase, Telophase
(i) Karyokinesis and Cytokinesis
(j) Male gamete (22 + Y) and Female gamete (22 + X)
Que-2: What are the rungs of the “DNA ladder” made of?
Sol: The rungs of the DNA ladder are made of four types of nitrogenous bases as given following
Adenine (A)
Guanine (G)
Cytosine (C)
Thymine (T)
Que-3: Correct the following statements for mistakes, if any.
(a) The four nitrogenous bases in the DNA are Guanine, Thiamine, Adrenaline and Cytosine.
(b) Genes are specific sequences of bases on a chromosome.
(c) A nucleotide is composed of a sulphate, a sugar (pentose) and a nitrogenous base.
(d) Nucleosomes are groups of cysteine molecules surrounded by DNA strands.
(e) If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
Sol:
(a) The four nitrogenous bases in the DNA are Guanine, Thymine, Adenine and Cytosine.
(b) Genes are specific sequences of nucleotides on a chromosome.
(c) A nucleotide is composed of a phosphate, a sugar (pentose) and a nitrogenous base.
(d) Nucleosomes are groups of histone molecules surrounded by DNA strands.
(e) If there are 46 chromosomes in a cell there will be 46 chromatin fibers inside the nucleus during interphase.
–: end of Structure of Chromosome Cell Cycle and Cell Division Short Ans Type Selina Solutions :–
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