(a(i))[2]
What does the term chromosome mean?
(a(ii))[1]
On Fig. 6.1, draw a line labelled W to indicate where chromosomes are found in this cell.
(b)[5]
Complete Fig. 6.2 to show the inheritance of fur colour in the offspring from this cross.
(c)[2]
State the sex chromosomes present in a male mouse and in a female mouse.