Need help with a more discriptive understanding of the reproduction of the pine cycle! Thank you! Pollen grainsdisperse via windMITOSISMEIOSISPOLLINATIONHaploid (n)|Diploid (2n)Microspore (n)forms pollen grainPollen grain(male gametophyte)Cones withmicrosporangiaFour meioticproducts; one islarge and formsthe megaspore (n)MegasporangiumMothercell (2n)Three meiotic| products dieMEIOSISPollen grainOvules (containmegasporangia)Ovulate coneFemalegametophyte (n) -Egg (n) -| Megaspore divides toform female gametophyte (n),which forms eggs by mitosis.(Only one egg is fertilized| and develops.)Embryo(2n)Pollen tubeFERTILIZATIONMITOSISPollen tubeMatureDevelopingsporophytedelivers spermto eggsporophyte (2n)Seeds (dispersevia wind or animals)Heterospory in Gymnosperms: Microspores Produce Pollen Grains; Megaspores Produce Female Gametophytes.

Ans : Important Points: megaspore: the bigger spore of a heterosporous plant, ordinarily creating…

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Science

Biology

Need help with a more discriptive understanding of the reproduction of the pine cycle! Thank you!

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter24: Fungi

Section: Chapter Questions

Problem 1VCQ: Figure 24.14 Which of the following statements is true? A dikaryotic ascus that forms in the...

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Need help with a more discriptive understanding of the reproduction of the pine cycle! Thank you!

Pollen grains
disperse via wind
MITOSIS
MEIOSIS
POLLINATION
Haploid (n)
|Diploid (2n)
Microspore (n)
forms pollen grain
Pollen grain
(male gametophyte)
Cones with
microsporangia
Four meiotic
products; one is
large and forms
the megaspore (n)
Megasporangium
Mother
cell (2n)
Three meiotic
| products die
MEIOSIS
Pollen grain
Ovules (contain
megasporangia)
Ovulate cone
Female
gametophyte (n) -
Egg (n) -
| Megaspore divides to
form female gametophyte (n),
which forms eggs by mitosis.
(Only one egg is fertilized
| and develops.)
Embryo
(2n)
Pollen tube
FERTILIZATION
MITOSIS
Pollen tube
Mature
Developing
sporophyte
delivers sperm
to egg
sporophyte (2n)
Seeds (disperse
via wind or animals)
Heterospory in Gymnosperms: Microspores Produce Pollen Grains; Megaspores Produce Female Gametophytes.

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