Solved MCQs of Biology Class 9
Modern classification (binomial nomenclature) is based on the work of:
Caesalpino
John Ray
Tournefort
Carolous Linnaeus
Who suggested the first system of classification of organisms?
Al-Jahiz
Aristotle
John Ray
Averroes
The fund event of interphase occurs with ………….. .
Replication of DNA
Replication of centriol
Movement of centriol
Both a & b
Nucleus is visible only in:
Prophase
Interphase
Anaphase
Metaphase
The prokaryotic cell division is termed as :
Binary fission
Multiple fission
Cytokinesis
Karyokinesis
Cells of which of the followings are called cancerois cells?
Malignant tumer
Benign tumer
Both a and b
None of the above
The exchange of parts of non-sister chromatids is called:
Chiasmata
Linkage
Crossing over
None of these
Prior to cell replicates or duplicates its genetic material , the products are connected by a centromere and are called:
Sister chromosomes
Homologous chromosomes
Non-sister chromatids
Sister chromatids
In this phase of Interphase the cell prepares proteins for the production of spindle fibres.
G2 phase
G O phase
S phase
G I Phase
Cytokinesis in a plant cell is characterized by:
The equal division of homologous chromosomes
A pinching off of the cell membrane to divide the cell
The formation of a cell plate in the cytoplasm
The movement of the chromosomes from the metaphase plate
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