BIOH111 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE
What is cell division?
The process by which a cell divides into two daughter cells.
Why can't muscle cells divide?
Muscle cells lack the ability to divide.
What is a chromosome?
A long molecule of DNA double helix that coils around histones.
What is chromatin?
A string of DNA and protein found within a chromosome.
What is a chromatid?
One strand of a chromosome that is joined by a centromere to form a chromosome.
What is a centromere?
The central region of a chromosome that joins its two chromatids together.
What are the two major phases of the cell cycle?
Interphase and Mitotic phase
What happens during Interphase?
Duplication of cell material
What happens during Mitotic phase?
Division of cell material
What are the three phases of Interphase?
, G1 phase, S phase, G2 phase
What happens during G1 phase?
Components of the cell are copied, metabolic rate increases, organelles and cytosolic
components are duplicated
What happens during S phase?
DNA replication, condensation of chromosomes
What happens during G2 phase?
Cell growth continues, proteins and enzymes synthesize, centrosome replication is
completed
What is mitosis?
Process of cell division in somatic cells
What type of cells does mitosis occur in?
Somatic cells
How many cells are produced at the end of mitosis?
2 identical cells
What are the two divisions involved in mitosis?
Nuclear division and cytokinesis
What are the stages of mitosis?
Prophase, metaphase, anaphase, telophase
What is the purpose of cytokinesis in mitosis?
To divide the cytoplasm and complete cell division
What are the three types of RNA?
mRNA, rRNA, tRNA
COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE
What is cell division?
The process by which a cell divides into two daughter cells.
Why can't muscle cells divide?
Muscle cells lack the ability to divide.
What is a chromosome?
A long molecule of DNA double helix that coils around histones.
What is chromatin?
A string of DNA and protein found within a chromosome.
What is a chromatid?
One strand of a chromosome that is joined by a centromere to form a chromosome.
What is a centromere?
The central region of a chromosome that joins its two chromatids together.
What are the two major phases of the cell cycle?
Interphase and Mitotic phase
What happens during Interphase?
Duplication of cell material
What happens during Mitotic phase?
Division of cell material
What are the three phases of Interphase?
, G1 phase, S phase, G2 phase
What happens during G1 phase?
Components of the cell are copied, metabolic rate increases, organelles and cytosolic
components are duplicated
What happens during S phase?
DNA replication, condensation of chromosomes
What happens during G2 phase?
Cell growth continues, proteins and enzymes synthesize, centrosome replication is
completed
What is mitosis?
Process of cell division in somatic cells
What type of cells does mitosis occur in?
Somatic cells
How many cells are produced at the end of mitosis?
2 identical cells
What are the two divisions involved in mitosis?
Nuclear division and cytokinesis
What are the stages of mitosis?
Prophase, metaphase, anaphase, telophase
What is the purpose of cytokinesis in mitosis?
To divide the cytoplasm and complete cell division
What are the three types of RNA?
mRNA, rRNA, tRNA
