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In which of the following organisms is amitosis MOST commonly observed?
Higher plants and animals
Fungi and algae
Prokaryotes and some lower eukaryotes
Viruses and bacteriophages
Which of the following is NOT a crucial checkpoint control mechanism during Interphase?
Checking for DNA damage before S phase
Verifying DNA replication completion before G2
Ensuring proper spindle fiber attachment
Monitoring cellular resource availability before G1
If a cell has a mutation that prevents the formation of the pre-replication complex during interphase, which process will be directly impacted?
Chromosome condensation
Spindle fiber formation
Cytokinesis
DNA Replication initiation
Which of the following is NOT a characteristic of amitosis?
Absence of distinct chromosome condensation
Formation of spindle fibers
Division of the nucleus by simple constriction
Commonly observed in prokaryotes and some eukaryotic cells
Amitosis is characterized by:
Formation of a cell plate
Spindle fiber attachment to kinetochores
Direct division of the nucleus
Equal distribution of genetic material through complex mechanisms
Which statement is TRUE regarding amitosis?
It involves the formation of chromosomes.
It is a relatively faster process than mitosis.
It ensures equal distribution of genetic material.
It is the most common type of cell division in multicellular organisms.
Which checkpoint in interphase checks for DNA damage before replication?
G1/S checkpoint
G2/M checkpoint
M checkpoint
S/G2 checkpoint
The major event of the G2 phase is:
DNA replication
Cell growth and protein synthesis
Preparation for mitosis
Cytokinesis
Which of the following is NOT a characteristic of interphase?
The cell grows in size
DNA is replicated
Organelles are duplicated
Chromosomes condense and become visible
What is the main purpose of mitosis?
Gamete formation
Genetic variation
Growth and repair of tissues
Reduction in chromosome number