Sex chromosomes and autosomes — task. Science TNSB Mentoring, Class 10.

Select the correct answer:

1.When a son is born

A foetus has XX chromosomes
A foetus has XW chromosomes
A foetus has XY chromosomes
A foetus has X0 chromosomes

2.The chromosomal condition of a male is

44AA +YY
44AA C+XYY
44BC +YY
44AA +XY

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