Solved MCQs of Biology Class 9
the Genetic variation are produced as a result of ………….. .
Meiosis
Mitosis
Interphase
None
The condensation of chromosomes is completed during:
Telophase
Prophase
Anaphase
Metaphase
the division of cytoplasm is called …………. .
Karyokinesis
Cytokinesis
Anaohase
Telophase
The phenomenon of spread of tumor is called:
Malignant
Benign
Metastasis
Mitosis
Which one of the followings stage is similar in mitosis and meiosis?
Prophase
Anaphase
Metaphase
Telophase
How many cells die each day due to apoptosis in humans?
50 – 70 Billions
50 – 70 Millions
50-70 trillions
20 – 30 Millions
Example of Apoptotic process is …………… .
Disappearance of tadpole tail
Disappearance of web human hand
Formation of fingers of hand
All of the above
Down’s sayndrome is an autosomal non-disjunction of chromosomes number …………. .
22
12
21
14
Chromatids get separated form each other during:
Prophase
Telophase
Anaphase
Metaphase
For mitosis, the chromosomes of the cells are duplicated during interphase. When do the chromosomes duplicated for meiosis?
Before meiosis 1
Before meiosis 2
During Meiosis 1
Do not duplicate
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