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WorksheetsBIO1 - Cell Biology - Cell Division
Total questions: 12
Worksheet time: 6mins
What are chromosomes made up of?
DNA
RNA
mRNA
tRNA
What is a gene?
A chromosome
A set of chromosomes
A section of DNA which codes for a protein
A section of RNA which codes for a protein
How many chromosomes are found in the nucleus of human body cells?
22
23
44
46
How many chromosomes are found in the nucleus of gametes?
22
23
44
46
How are the chromosomes arranged in the nucleus of a body cell?
On their own
In pairs
In threes
What are the three main stages of the cell cycle?
Replication of DNA and synthesis of organelles
Mitosis
Meiosis
Division of the cell
Why is mitosis important?
Produces additional genetically identical cells
Produces additional genetically different cells
Describe the first stage in the cell cycle.
Longest stage - cell gets bigger
Longest stage - cell gets smaller
Shortest stage - cell gets bigger
Shortest stage - cell gets smaller
Describe the second stage of the cell cycle.
Pairs of chromosomes are put at one end of the cell
Pairs of chromosomes are separated and one is pulled to either end of the cell
Describe the third stage of the cell cycle
The nucleus divides
The DNA replicates
The cytoplasm and cell membrane divide
What is a stem cell
A cell found on the stem of a plant
A specialised cell
An unspecialised cell
Why are embryonic stem cells very useful?
They can replicate into one other type of cell
They can replicate into many types of cells
