During which phase does the nucleolus appear in the nucleus?
Telophase
Prophase
Metaphase
Interphase
In which type of cells is the nucleus typically found at the center?
Muscle fiber cells
Animal cells
Both a and b
Plant cells
What happens to the nucleolus during cell division?
It increases in size
It migrates to the cytoplasm
It synthesizes more DNA
It disappears
What causes the nucleus in adult plant cells to be slightly away from the center?
Increased cytoplasm volume
Absence of nuclear pores
Nuclear division
Presence of a large central vacuole
Which protein plays a crucial role in attaching chromosomes to the mitotic spindle?
Nucleoporin
Centromere protein
Kinetochore protein
DNA polymerase
The nucleolus is involved in the construction of:
Lysosomes
Mitochondria
Ribosomes
Nucleotides
The nuclear envelope is connected with which cellular organelle?
Lysosomes
Ribosomes
Golgi apparatus
Endoplasmic reticulum
What is the main function of nuclear pores in the nuclear envelope?
Synthesize DNA
Regulate nucleo-cytoplasmic exchange
Produce ribosomes
Control cell division
What is the typical composition of a chromosome?
Four chromatids connected by a centromere
Three chromatids
Two chromatids connected by a centromere
One chromatid
Chromatin is a complex of:
DNA and RNA polymerase
DNA and proteins
RNA and nucleotides
RNA and proteins
