WorksheetsHHB 1.1 QUIZDivision & Differentiation
Total questions: 20
Worksheet time: 11mins
In humans, diploid cells have __ pairs of homologous chromosomes.
46
.................... cells are gametes (sperm and ova) and the stem cells that divide to form gametes.
Somatic
What do the therapeutic uses of stem cells include?
The repair of damaged or diseased organs or tissues.
Testing drugs
Studying how disease develops
Division by _______ produces more germline stem cells.
Mitosis
Meiosis
Haploid gametes contain ....
46 single chromosomes
23 pairs of chromosomes
23 sets of chromosomes
23 single chromosomes
When cells within a tumour fail to attach to each other, they spread through the body where they may form ..................
tertiary tumours
initial tumours
primary tumours
secondary tumours
Research can involve stem cells being used as model cells to...
treat and cure diseases
study how diseases develop or being used for drug testing.
Division by _______ produces more haploid gametes.
Meiosis
Mitosis
Cancer cells divide excessively because they do not respond to regulatory signals. This results in a mass of abnormal cells forming. What is this mass of abnormal cells known as?
a tumour
embryo
zygote
somatic cells divide by _______ to form more somatic cells.
Mitosis
Meiosis
What are two examples of the therapeutic uses of stem cells?
Studying how diseases develop and developing new treatments for diseases.
Used in corneal repair and the regeneration of damaged skin e.g. skin grafts
