The complete disintegration of the nuclear envelope marks the
Ending of the second phase(stage) of mitosis
Start of the second phase(stage) of mitosis
Metaphase
Both B and C
Condensation of chromosomes is completed and chromosomes are spread throughout cytoplasm, here we are talking about which phase of cell cycle?
Prophase
Interphase
Anaphase
The stage at which morphology of chromosomes is studied very easily would be
Telophase
Kinetochores are not
Formed by spindle Fibres
Formed by asters
Help in the attachment of chromosomes to the spindle Fibres
Disc-shaped structure
All the chromosomes coming to lie at the equator with one chromatids of each chromosome connected by it's kinetochore to spindle Fibres from one pole and it's sister chromatids connected by it's kintetochore to spindle Fibres from the opposite poles.
This is a characteristic features of which of the following phases?
The plane of alignment of chromosomes at metaphase is referred to as
Metaphase line
Metaphase plate
Metaphase area
Metaphase shape
The two daughter chromatids start moving towards the two opposite poles, this is a characteristic feature of
The leading edge of chromosomes in the Anaphase stage is
Centromere
Two arms
Only one arm
Kinetochore
Splitting of centromere occurs in
The reformation of the nuclear envelope, nucleolus, Golgi complex, and ER occurs in
The end of which of the following mark's completion of Mitosis?
Cytokinesis
Karyokinesis
Interkinesis
The furrow gradually deepens and ultimately joins in the centre dividing the cell cytoplasm into two. Here, the cell is
Animal cell
Plant cell
Both A and B
Only Root tip cells
The Cytokinesis of plant cell is not same as that of animal cell because of
Inextensible cell wall
Cell membrane differences
Intermediate Filaments
Nuclear envelope
The simple precursor of cell wall in plant cell is
Cell plate
Cell sap
Cell membrane
Cytosol
If Karyokinesis is not followed by Cytokinesis
Multinucleated
Syncytium
Liquid endosperm in coconut
All of these
Mitosis doesn't occur in
Diploid cell
Haploid cell of lower plants
Haploid cell of social insect
Haploid cell of animals
Mitosis results in
Diploid daughter cells
Cells of identical genetic complement
Haplo- Diploidy
Mitosis doesn't perform which of the following functions?
Cell repair
Growth of multicellular animals
Restoration of nucleus to cytoplasmic ratio
Continuation of cell growth
Which of the following cells are not constantly replaced?
Blood cells
Cells of inner lining of gut
Brain cells
The cells of the upper layer of Epidermis
Mitotic divisions which result in continuous growth of plants throughout their life
In the meristematic tissue
Apical and lateral cambium
Cells of maturation zone of root
The specialized kind of cell division that reduces the chromosome number by half results in the production of haploid phase in the life cycle is
Meiosis
Mitosis
Amitosis
Karyomitosis
Meiosis does not involve
Meiosis 1
Meiosis 2
Two interphases
Meiosis has
Only a single cycle of DNA replication
Two cycles of DNA replication
One cycle of DNA replication in interkinesis
One cycle of DNA replication after interkinesis
Replication of DNA in S phase results in
Production of identical sister chromatids
Production of identical homologous chromosomes
Production of non-sister chromatids
Production of non-identical chromosomes
The event of recombination will occur in between
All chromatids of homologous chromosomes
Only non-sister chromatids of homologous chromosomes
The complete homologous chromosomes
All type of chromosomes
The division of Prophase in the five phases is done on the basis of
Chromosomal behavior
Chromosomal pattern
Chromosomal movement
Chromosome structure
Which of the following does not belong to Prophase I
Leptotene
Zygotene
Diakinesis
Compaction of chromosomes occurs in
Diplotene
The stage at which chromosomes start pairing together is
Pachytene
The synaptonemal complex is visible under
Electron microscope
Compound microscope
Simple microscope
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