Genetics and Plant Breeding Cell Division Mitosis
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Question No. 1
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What is the process of forming new cells from pre-existing cells called?
A.
Cellular respiration
B.
Cell division
C.
Cell differentiation
D.
Cellular communication
Question No. 2
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Which type of cell division results in two genetically identical daughter cells?
A.
Meiosis
B.
Mitosis
C.
Binary fission
D.
Budding
Question No. 3
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Which type of cell division is involved in gamete formation?
A.
Mitosis
B.
Meiosis
C.
Cytokinesis
D.
Interphase
Question No. 4
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What is the main purpose of mitosis?
A.
Sexual reproduction
B.
Growth and repair
C.
Genetic variation
D.
Energy production
Question No. 5
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What is the main purpose of meiosis?
A.
Asexual reproduction
B.
Sexual reproduction
C.
Cellular differentiation
D.
Protein synthesis
Question No. 6
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Which phase of the cell cycle is the longest?
A.
Mitotic phase
B.
Cytokinesis
C.
Interphase
D.
Anaphase
Question No. 7
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What happens during the G1 phase of interphase?
A.
DNA replication
B.
Protein and RNA synthesis
C.
Cell growth
D.
Chromosome condensation
Question No. 8
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What happens during the S phase of interphase?
A.
RNA synthesis
B.
Protein synthesis
C.
DNA replication
D.
Chromosome condensation
Question No. 9
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What happens during the G2 phase of interphase?
A.
DNA replication
B.
Protein and RNA synthesis
C.
Cell division
D.
Chromosome segregation
Question No. 10
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Which phase of the cell cycle involves the physical division of the nucleus?
A.
Interphase
B.
Mitosis
C.
Cytokinesis
D.
G0 phase
Question No. 11
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What is the first stage of mitosis?
A.
Metaphase
B.
Anaphase
C.
Telophase
D.
Prophase
Question No. 12
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What happens during prophase?
A.
Chromosomes condense
B.
Chromosomes align at the equator
C.
Chromatids separate
D.
Nucleolus reappears
Question No. 13
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What happens during metaphase?
A.
Chromosomes condense
B.
Chromosomes align at the equator
C.
Chromatids separate
D.
Nucleolus reappears
Question No. 14
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What happens during anaphase?
A.
Chromosomes condense
B.
Chromosomes align at the equator
C.
Chromatids separate
D.
Nucleolus reappears
Question No. 15
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What happens during telophase?
A.
Chromosomes condense
B.
Chromosomes align at the equator
C.
Chromatids separate
D.
Nucleolus reappears
Question No. 16
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What is the final stage of cell division, following telophase?
A.
Interphase
B.
Mitosis
C.
Cytokinesis
D.
Prophase
Question No. 17
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What structure forms the cell plate during cytokinesis in plant cells?
A.
Centriole
B.
Phragmoplast
C.
Spindle apparatus
D.
Chromatin
Question No. 18
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Which of the following is NOT a part of interphase?
A.
G1 phase
B.
S phase
C.
G2 phase
D.
Prophase
Question No. 19
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During which phase of mitosis do chromosomes become the shortest and thickest?
A.
Prophase
B.
Metaphase
C.
Anaphase
D.
Telophase
Question No. 20
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What is the function of the spindle apparatus during mitosis?
A.
DNA replication
B.
Chromosome movement
C.
Protein synthesis
D.
Cellular respiration
Question No. 21
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Where does mitosis occur?
A.
Only in gametes
B.
Only in somatic cells
C.
In both gametes and somatic cells
D.
Only in bacteria
Question No. 22
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Where does meiosis occur?
A.
Only in somatic cells
B.
Only in gametes
C.
In both somatic and gamete cells
D.
Only in viruses
Question No. 23
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How many daughter cells are produced from one cell during mitosis?
A.
1
B.
2
C.
4
D.
8
Question No. 24
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How many daughter cells are produced from one cell during meiosis?
A.
1
B.
2
C.
4
D.
8
Question No. 25
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Are the daughter cells produced by mitosis genetically identical to the parent cell?
A.
Yes
B.
No
C.
Sometimes
D.
It depends on the cell
Question No. 26
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Are the daughter cells produced by meiosis genetically identical to the parent cell?
A.
Yes
B.
No
C.
Sometimes
D.
It depends on the cell
Question No. 27
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What is the ploidy of the daughter cells after mitosis compared to the parent cell?
A.
Haploid
B.
Diploid
C.
Tetraploid
D.
Triploid
Question No. 28
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What is the ploidy of the daughter cells after meiosis compared to the parent cell?
A.
Haploid
B.
Diploid
C.
Tetraploid
D.
Triploid
Question No. 29
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What is the significance of chromosome condensation during prophase?
A.
It facilitates DNA replication
B.
It prevents DNA tangling during cell division
C.
It allows for easier protein synthesis
D.
It helps in cell signaling
Question No. 30
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What is the role of the centromere during mitosis?
A.
It initiates DNA replication
B.
It is the point of attachment for spindle fibers
C.
It synthesizes proteins required for cell division
D.
It regulates the cell cycle
Question No. 31
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What is the difference between sister chromatids and homologous chromosomes?
A.
They are the same thing
B.
Sister chromatids are identical copies of a chromosome, while homologous chromosomes are different versions of the same chromosome
C.
Homologous chromosomes are identical copies, while sister chromatids are different versions
D.
They are unrelated structures
Question No. 32
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What is crossing over and when does it occur?
A.
It is the exchange of genetic material between non-sister chromatids of homologous chromosomes during prophase I of meiosis.
B.
It is the exchange of genetic material between sister chromatids during prophase of mitosis.
C.
It is the replication of DNA during S phase.
D.
It is the separation of chromosomes during anaphase.
Question No. 33
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What is the significance of crossing over?
A.
It increases genetic variation
B.
It ensures genetic stability
C.
It reduces the number of chromosomes
D.
It has no significant role
Question No. 34
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What is independent assortment and when does it occur?
A.
It is the random distribution of homologous chromosomes during metaphase I of meiosis.
B.
It is the separation of sister chromatids during anaphase of mitosis.
C.
It is the replication of DNA during S phase.
D.
It is the condensation of chromosomes during prophase.
Question No. 35
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What is the significance of independent assortment?
A.
It increases genetic variation
B.
It ensures genetic stability
C.
It reduces the number of chromosomes
D.
It has no significant role
Question No. 36
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What is the purpose of cytokinesis?
A.
To divide the nucleus
B.
To divide the cytoplasm
C.
To replicate DNA
D.
To condense chromosomes
Question No. 37
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When does cytokinesis usually occur?
A.
Before mitosis
B.
During mitosis
C.
After mitosis
D.
Simultaneously with mitosis
Question No. 38
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How does cytokinesis differ between plant and animal cells?
A.
It is the same in both
B.
Plant cells form a cell plate, while animal cells form a cleavage furrow.
C.
Animal cells form a cell plate, while plant cells form a cleavage furrow.
D.
Plant cells use binary fission, while animal cells use mitosis.
Question No. 39
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What is the cell plate made of in plant cytokinesis?
A.
Cellulose
B.
Chitin
C.
Phospholipids
D.
Proteins
Question No. 40
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What is the cleavage furrow made of in animal cytokinesis?
A.
Cellulose
B.
Actin and myosin filaments
C.
Phospholipids
D.
Proteins
Question No. 41
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What happens to the nuclear envelope during prophase?
A.
It reforms
B.
It disappears
C.
It remains intact
D.
It replicates
Question No. 42
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When does the nuclear envelope reform?
A.
Prophase
B.
Metaphase
C.
Anaphase
D.
Telophase
Question No. 43
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What is the role of the nucleolus?
A.
Protein synthesis
B.
RNA synthesis
C.
DNA replication
D.
Cell division
Question No. 44
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When does the nucleolus disappear?
A.
Prophase
B.
Metaphase
C.
Anaphase
D.
Telophase
Question No. 45
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When does the nucleolus reappear?
A.
Prophase
B.
Metaphase
C.
Anaphase
D.
Telophase
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