Question

Answers to all 6 questions please (83points)
Try and get all 6 right

Answer 1

2.1.1 ) Homologous pairs
2.1.2) 45
2.1.3) Gonosomes
2.1.4) The presence of a Y chromosome
2.1.5) chromosom mutation
2.1.6) Non disjunction occurred at position 21 during anaphase resulting in one gamete with 24 chromosomes. The fertilisation of this gamete with a normal gamete results in a zygote with 47 chromosomes. There are 3 chromosomes.

Tell me I’m wrong...