Matching
The following diagram depicts the life cycle of a cherry, a eudicot. Match the specified labels in the diagram with the corresponding life cycle stage.
Premises:
Which stage is indicated by label 2?
Responses:
the pollen tube reaches the ovule, penetrates it, and releases two sperm cells; double fertilization occurs
four haploid ( n )megaspores form by meiosis and cytoplasmic division of the enlarged cell in the ovule
pollen sacs form in an anther
pollen grain lands on a receptive stigma and germinates
an ovule forms in the ovary; a cell in the ovule enlarges
three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis
with no cytoplasmic division result in a single cell with eight haploid nuclei
with no cytoplasmic division result in a single cell with eight haploid nuclei
four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac
uneven cytoplasmic divisions produce a seven-celled female gametophyte
pollen grains are released from the anther when the pollen sacs split open
mitosis of a microspore followed by differentiation results in a two-celled pollen grain
Correct Answer:
Premises:
Responses:
the pollen tube reaches the ovule, penetrates it, and releases two sperm cells; double fertilization occurs
four haploid ( n )megaspores form by meiosis and cytoplasmic division of the enlarged cell in the ovule
pollen sacs form in an anther
pollen grain lands on a receptive stigma and germinates
an ovule forms in the ovary; a cell in the ovule enlarges
three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis
with no cytoplasmic division result in a single cell with eight haploid nuclei
with no cytoplasmic division result in a single cell with eight haploid nuclei
four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac
uneven cytoplasmic divisions produce a seven-celled female gametophyte
pollen grains are released from the anther when the pollen sacs split open
mitosis of a microspore followed by differentiation results in a two-celled pollen grain
Premises:
the pollen tube reaches the ovule, penetrates it, and releases two sperm cells; double fertilization occurs
four haploid ( n )megaspores form by meiosis and cytoplasmic division of the enlarged cell in the ovule
pollen sacs form in an anther
pollen grain lands on a receptive stigma and germinates
an ovule forms in the ovary; a cell in the ovule enlarges
three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis
with no cytoplasmic division result in a single cell with eight haploid nuclei
with no cytoplasmic division result in a single cell with eight haploid nuclei
four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac
uneven cytoplasmic divisions produce a seven-celled female gametophyte
pollen grains are released from the anther when the pollen sacs split open
mitosis of a microspore followed by differentiation results in a two-celled pollen grain
Responses:
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