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Megaspores, also
called macrospores, are a type of
spore that is
present in
heterosporous plants.
These plants have two
spore types,
megaspores and microspores...
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includes a
megasporocyte (a cell that will
undergo meiosis to
produce megaspores).
Megaspores remain inside the
ovule and
divide by
mitosis to
produce the haploid...
- of four
haploid megaspores. At
least one of the
spores develop into
haploid female gametophytes, the megagametophytes. The
megaspore mother cell arises...
- generations. The
spores of seed
plants are
produced internally, and the
megaspores (formed
within the ovules) and the
microspores are
involved in the formation...
-
species produce micro- and
megaspores in the same sporangium, a
condition known as homoangy,
while in
others the micro- and
megaspores are
produced in separate...
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spores are produced).: 18
These plants produce both
microspores and
megaspores,
which give rise to
gametophytes that are
functionally male or female...
-
megaspores are dis****d from
sporangia either p****ively or by
active ejection.
Microspores produce microgametophytes which produce sperm.
Megaspores...
- they are heterosporous,
having two
spore types,
microspores (male) and
megaspores (female) that are
typically produced in
pollen cones or
ovulate cones...
-
Microspores are land
plant spores that
develop into male gametophytes,
whereas megaspores develop into
female gametophytes. The male
gametophyte gives rise to sperm...
-
undergoes meiosis,
producing four
haploid megaspores. Only one of the four
resulting megaspores survives. This
megaspore undergoes three rounds of mitosis, resulting...
