Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .
After fertilisation in animals, the zygote divides by mitosis.
After several divisions, a hollow ball of cells is produced. In vertebrate animals this is
called a blastula.
This process in shown in the diagram below.
The photograph below shows a cell of a blastula of the whitefish, Coregonus, at
one stage of mitosis.
Put a crossin the box next to the correct word to complete the following
statement.
The stage of mitosis shown in the photograph is
A anaphase
B metaphase
C prophase
D telophase