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Section
A
1.
(a)
(c)
When a
cell divides, the genetic material can divide by mitosis, by meiosis or by
neither of
these
processes. Complete the table with a tick to show the process by which you
would
expect
the genetic material to divide in each of these examples. Complete
the diagram below to show the appearance of the chromosomes in each of
the
four
daughter cells formed at the end of the second division of
meiosis. In an
insect, 16 chromatids were visible in a cell at the start of the first
division of meiosis.
How many
chromosomes would there be in a normal body cell from this insect?
The
division of plasmids in bacterial reproduction.
mitosis
The stage
in the formation of male gametes in a plant in
which
haploid daughter cells are formed from a haploid
parent
cell.
meiosis
neither
Cell
division which takes place in the growth of a human
testis
between birth and five years of age.
The stage
in the lifecycle pf a protoctistan in which a large
number of
genetically different spores are produced.
(2
marks)
(b) The
diagram shows a cell during the first division of meiosis.
(2
marks)
(1
mark) |