2.3 Cell Continuity FMQuiz Homework Solution
Q. Genes are found on what structures in a cell
nucleus?
A. Chromosomes
Q. Give one way in which mitosis differs from
meiosis.
A. Two identical daughter cells OR can occur in
haploid cells
Q. In genetics, what is meant by the term haploid?
A. Single set of chromosomes or half the diploid
number
Q. What is a chromosome?
A. Group of genes joined together or large DNA
molecule
Q. What is the medical term for the group of
disorders in which certain cells lose normal control
of mitosis?
A. Cancer
Q. Suggest a possible cause of cancer.
A. e.g. Radiation, chemicals, smoking, viruses, etc.
Q. What name is applied to the period of the cell
cycle in which division is not taking place?
A. Interphase
Q. To what are the chromosomes attached during
metaphase of mitosis?
A. Spindle
Q. Give two examples of the use of tissue culture.
A. Cancer research, Plant propagation
Q. What is the function of spindle fibres during cell
division?
A. For chromosomes to attach to & contract to
separate chromosomes
Q. Name the two types of cell division.
A. Mitosis & meiosis
Q. Towards the end of mitosis, in what type of cell
does a cell plate form?
A. Plant cell
Q. Explain the term tissue culture.
A. Cells grown on or in medium or cells grown
outside organism
Q. Suggest a possible treatment for cancer.
A. e.g. Chemotherapy / radiotherapy / surgery
Q. What is the role of mitosis in single-celled
organisms?
A. Reproduction
Q. A what stage of mitosis are the chromosomes
located at the equator of the cell before they begin
to separate?
A. Metaphase
Q. What is a tissue?
A. A group of cells with the same function
Q. Give a cellular process that occurs during the
period in the cell cycle in which the nucleus is not
dividing.
A. Replication or Growth or Protein synthesis or
Respiration or Photosynthesis
Q. Tissues grow by cell division. Name the type of
cell division by which tissues grow.
A. Mitosis
Q. What is the function of meiosis?
A. Halving of chromosome numbers or to produce
gametes
Q. Name a gas that would be needed for the
growth of tissue in the laboratory.
A. Oxygen
Q. Why are sterile conditions needed to grow a
tissue culture in a laboratory?
A. To avoid contamination
Q. What type of cell division, mitosis or meiosis, is
involved in tissue culture?
A. Mitosis
Q. Organs are found in both plants and animals.
What is meant by the term organ?
A. A group of tissues performing the same function
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