Fig. 1 below shows some chromosomes during meiosis.Â
Fig. 1
Identify the stage of meiosis shown.
[1]
Describe the behaviour of the chromosomes during this stage of meiosis.
[1]
Fig. 2 shows two chromosomes.
Fig. 2
Identify the structures labelled X and Y.
[2]
Structures Y and ZÂ are identical.
State why this is the case.
[1]
The two chromosomes shown in part (b) can be described as homologous chromosomes.
Define the term homologous chromosome.
During meiosis the homologous chromosomes shown in part (b) are separated.
Identify the stage of meiosis during which the homologous chromosomes are separated.
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