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11th Biology Monthly Test - 1 ( Bio - Botany - Cell Cycle )

MABS Institution

11th Biology Monthly Test - 1 ( Bio - Botany - Cell Cycle )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

__________ act as major checkpoint which operates in G1.

Cyclins
Cytoplasm
Tubulin
Microtubles

Nuclear membrane and nucleolus disappear in __________ .

Prophase II
Metaphase II
Anaphase II
Telophase II

Many checkpoints control the ____________ .

2C
Cell cycle
Restriction point
G1

Spindle fibres are composed of:

Lipids
Pectins
Cellulose
Proteins

Daughter cells are genetically identical to parent cells called ____________ .

Cytokinesis
Cell plate
Genetic stability
Repair of tissues

A cell division in which no spindle formation and non condensation of chromation material is called:

Mitosis
Amitosis
Meiosis
None of the above

The stage of mitosis during which the nucleolus disintegrates and chromosomes appear is known as _____

Interphase
Metaphase
Prophase
Anaphase

Paired sister chromatids begin to condense in _____________ .

Leptotene
Zygotene
Pachytene
Diplotene

Chromosomes can be counted during:

Prophase
Metaphase
Anaphase
Telophase

Chromosome with 2 chromatids becomes short, condensed, thick __________ .

Prophase II
Metaphase II
Anaphase II
Telophase II

Part - B

Generic 2 - Answer All Question

Rajan had an accident and he was badly injured. His leg was wounded. Later the damaged skin was replaced by new tissues during healing.
(a) What is the process involved?
(b) Does it happen during normal times in our body.

What is the Role of the Nucleus?

What are the drawbacks of amitosis?

Define an aster.
Define maturation promoting factor (MPF)

Define Cell Cycle.

What is histones?

Name the two types of nuclear division.

Who coined the word "Cell" and "protoplasm"?

What is Kinetochore?

Part - C

Generic 3 - Answer All Question

Mention the four important features of the Chromosomes.

Between Prokaryotes & Eukaryotes, which cell has a shorter cell division time.

Compare the type of Closed and Open Mitosis .

Given that the average duplication time of E.coli is 20 minutes. How much time will two E.coli cells takes to become 32 cells?
Mention the two types of nuclear division. Write a short note on them.

How G₀ cells help in Closing Technology?

Write the significance G_o phase.

Name the pathological condition when uncontrolled cell division occurs.

Differentiate between S-phase and G₂-phase

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. What is the minimum number of microspore mother cells involved in this process?

Part - D

Generic 5 - Answer All Question

Write the significance G1 phase.

Explain the various phases in Cell Cycle.

Explain the different stages of prophase I of mieotic cell division

Enumerate the differences between mitosis and meiosis.

Write about Pachytene and Diplotene of Prophase I.
Draw the schematic diagram of anaphase promoting complex cyclosome and explain briefly.

Draw and label the various stages of mitosis cell division.

Explain the events take place at metaphase and anaphase stages of somatic cell division with diagram.

Draw and label the events of cell cycle

List out the important features of Chromosomes.

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