Structure of Chromosomes, Cell Cycle and Cell Division Class 10 ICSE Biology MCQ Questions

Structure of Chromosomes, Cell Cycle and Cell Division Class 10 ICSE Biology MCQ Questions

Looking for Structure of Chromosomes, Cell Cycle and Cell Division Class 10 ICSE Biology Chapter 2 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 biology chapter 2 multiple choice questions and answers. All MCQ are important.

Multiple Choice Questions

 (I) Choose the best answer

(1 ) The most prominent features of life is

a ) Cell division b ) Cell cycle

c) Arrangement of cells d) Cell lysis

Answer : a) Cell division

(2) Which method contributes in projecting life from generation to generation?

a ) Life cycle  b) Heredity

c ) Cell division    d ) None of the above

Answer : c) Cell division

( 3 ) Cell division imposes it’s impact on 

a ) Simplest organisms   b) Complex organisms

c) Both simplest and complex organisms d) None of the above

Answer : c) Both simplest and complex organisms

(4) Chromatin is mainly made up of

a )Protein  b ) Protein and DNA

c) DNA d ) RNA

Answer : b ) Protein and DNA

(5) Chromosome structure looks like

a ) Slightly coiled  b ) Permeable

c) Highly coiled and condensed c) Highly coiled and penetrable

Answer : c ) Highly coiled and condensed

(6) On which year ,Chromosomes in animals were first discovered?

a ) 1880 b) 1882

c) 1886 d ) 1888

Answer : b ) 1882

(7) Which German Scientist first discovered Chromosomes in animals?

a )  Paul Ehrlich    b ) Friedrich Loeffler

c ) Robert Koch    d ) Walther Flemming

Answer : d ) Walther Flemming

(8) On which year the shape of the DNA was first discovered?

a ) 1953   b) 1955

c) 1959 c)  1962

Answer : 1953

(9) Which Scientist first contributed in discovering the shape of the DNA molecule ?

a ) Nicholas Wald b ) Rosalind Franklin

c ) Alfred Russel Wallace  c) Kevin Warwick

Answer : b ) Rosalind Franklin

(10 ) Which Scientist first contributed in elucidating the structure of the DNA molecule?

a ) Joseph Lister   b) Louis Ignarro

c) Edward Jenner and Elizabeth Blackwell d) Watson and Crick

Answer : d) Watson and Crick

(11 ) Who won the Nobel Prize in 1962 for proposing the double stranded helical structure of DNA ?

a ) David Julius  b) Ardem Patapoutian

c) Charles M.Rice and Harvey J. Alterd ) Watson and Crick

Answer : d ) Watson and Crick

(12 ) Macromolecule literally denotes

a ) Large molecule   b) Very small molecule

c ) Very large molecule   c) Small molecule

Answer : c ) Very large molecule

(13 ) What is the full form of DNA ?

a) Deoxyribonucleic acid b) Deoxyrinonucleic acid

c ) Dizoribonucleic acid   c)   Dissirilonucleic acid

Answer : a) Deoxyribonucleic acid

(14 ) How many types of nitrogenous bases are discovered in the DNA?

a ) 3   b) 4

c ) 6   d) 8

Answer : b) 4

(15) When eight histone proteins contributes in winding of the DNA strand , then it is known as

a ) Histone octamer    b) Histone acetylation

c ) Histone deacetylation    d) Histone tetramer

Answer : a) Histone octamer

( 16) An individual human chromosome primarily consists of

a ) Thousand nucleosomes    b) Minimal nucleosomes

c ) Hundred nucleosomes d) Million nucleosomes

Answer : d) Million nucleosomes

( 17 )  A small constricted region of a chromosome that plays an essential part in connecting two sister chromatids at the time of cell division is called

a )  Centrioles  b ) Centrosome

c ) Centromere d) None of the above

Answer : c ) Centromere

( 18 )  Which hereditary unit is responsible for transmitting certain features from parents to children

a ) Linkage groupb ) Ancestry

c ) Genomesd) Genes

Answer : d ) Genes

(19 ) DNA fingerprinting is mostly used for detecting

a ) Identify of an individual b) Health problems

c ) Mental illness  d) All of the above

Answer : a) Identify of an individual

( 20 ) The production of new cells are extremely essential for

a ) Growth and Repairb)Repair and Replacement

1. c) Growth, Repair and Replacement d) Growth, Replacement, Repair and Reproduction

Answer : d) Growth, Replacement, Repair and Reproduction

( 21 ) How many red blood cells are demolished in our body per second ?

a ) 4 million    b) 2 million

c ) 3 million    d) 5 million

Answer : b ) 2 million

( 22 ) A cell which undergoes through the process of growth and division in a systematic sequence of events are called

a ) Life cycle   b) Cell cycle

c ) Cell structure    d) Cell division

Answer : b ) Cell cycle

( 23 ) The interphase and the M – phase are primarily the two phases that are contained in

a) Cell division b) Cell membrane

c ) Cell cycle   d) Cell lineage

Answer : c) Cell cycle

( 24  ) How many phases are there in the interphase?

a ) 4  b) 3

c ) 6  d) 8

Answer : b) 3

( 25 ) The unrestrained continuation of cell cycles may give rise to

a ) Diabetes  b) Thyroid

c ) Tumours  d) All of the above

Answer : c) Tumours

( 26 ) Cell divisions are primarily categorized into two types. What are the two different types of cell divisions?

a ) Nucleus and Mitochondrion   b) Mitochondrion and Ribosomes

c) Ribosomes and Cytoplasmd) Mitosis and Meiosis

Answer : Mitosis and Meiosis

( 27  )  The most prominent feature of mitosis is that

a )  The chromosome number remains constant    b ) The chromosome number alters

c ) The chromosomes number diminishes    c) The chromosome number exceeds

Answer : a ) The chromosome number remains constant

( 28 ) Which two steps are essential for the completion of Mitosis

a ) Karyokinesis and Cytokinesis    b) Pyknosis and Karyolysis

c) Karyorrhexis and Pyknosis d) Pyroptosis and Necrosis

Answer : a) Karyokinesis and Cytokinesis

(29 ) Which phase is considered as the first stage in mitosis ?

a ) Metaphase   b) Prophase

c ) Telophase c) Anaphase

Answer : b) Prophase

( 30 ) The duplicated chromosomes in the metaphase tends to settle on the

a ) Equatorial plane  b) Edge of the plane

c ) Interior of the plane   d) None of the above

Answer : a ) Equatorial plane

(31) The resting phase of mitosis is also known as

a) G1 phase b) G2 phase

c) S phase d) Interphase

Answer : d) Interphase

( 32 ) Which phase is regarded as the end phase in mitosis ?

a ) Prophase b) Telophase

c ) Metaphase   d) Anaphase

Answer : b) Telophase

( 33 ) Cytokinesis literally signifies

a ) Division of cytoplasm b ) Cytoplasmic matrix

c ) Cell organelles  d) Protoplasm

Answer : a) Division of cytoplasm

( 34 )  All the nuclear transformations that takes place at the time of cell division is called

a ) Cytokinesis b) Prometaphase

c ) Karyokinesis d) Interphase

Answer : c) Karyokinesis

 ( 35) Development or enlargement in body size is due to

a ) Replacement of new cells    b) Formation of new cells

c ) Destruction of new cells   d) Repair of new cells

Answer : b ) Formation of new cells

( 36 ) Which organelles present in a plant cell contains their own DNA?

a ) Cell wall b) Plastids

c ) Chloroplasts   d) Mitochondria and Chloroplasts

Answer : d) Mitochondria and Chloroplasts

( 37 ) Cells which undergoes the process of replacement every two weeks are

a ) Skin cells b) Red blood cells

c ) Bone cellsd) Liver cells

Answer : a ) Skin cells

( 38 ) Which cells last for a period of only 5 days ?

a ) Bone cellsb) Epithelial cells

c )Liver cellsd) Muscle cells

Answer : b ) Epithelial cells

( 39) A type of cell division that is responsible for producing sex cells are

a ) Mitosis  b) Amitosis

c ) Meiosis d) None of the above

Answer : c ) Meiosis

( 40 ) The most important characteristics of meiosis is that

a ) The number of chromosomes are doubled  b) The number of chromosomes are halved

c ) The number of chromosomes are tripled    d) The number of chromosomes are nullified

Answer : b ) The number of chromosomes are halved

For more update follow net explanations page