MEDIUM
AS and A Level
IMPORTANT
Earn 100
Suggest why the chromosomes in the given figure have been arranged in the order shown.
Important Questions on Inheritance
MEDIUM
AS and A Level
IMPORTANT
The karyogram is made up of manipulating the photographs of the chromosomes - they never do actually line up neatly like this. Suggest at what stage of the cell cycle the photographs are taken. Give reason for your suggestion.
MEDIUM
AS and A Level
IMPORTANT
Look at the diagram given below. At what stage or stages does nuclear division by mitosis occur?
MEDIUM
AS and A Level
IMPORTANT
Name the stage of meiosis at which homologous chromosomes pair to form bivalent. State whether the stage is during the division I or division II
MEDIUM
AS and A Level
IMPORTANT
Name the stage of meiosis at which crossing over between chromatids of homologous chromosomes takes place. State whether the stage is during the division I or division II
MEDIUM
AS and A Level
IMPORTANT
Name the stage of meiosis at which homologous chromosomes separates. State whether the stage is during the division I or division II
MEDIUM
AS and A Level
IMPORTANT
Name the stage of meiosis at which centromeres split and chromatids separate. State whether the stage is during the division I or division II
MEDIUM
AS and A Level
IMPORTANT
Name the stage of meiosis at which haploid nuclei are first formed. State whether the stage is during the division I or division II
HARD
AS and A Level
IMPORTANT
A cell with three sets of chromosomes is said to be triploid, 3n. A cell with four sets of chromosomes is said to be tetraploid, 4n. Could meiosis take place in a 3n or a 4n cell? Explain.
