Solved

The Following Diagram Depicts the Life Cycle of a Cherry

Question 81

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:

Responses:

Which stage is indicated by label 7?

four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac

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

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 grains are released from the anther when the pollen sacs split open

pollen sacs form in an anther

uneven cytoplasmic divisions produce a seven-celled female gametophyte

mitosis of a microspore followed by differentiation results in a two-celled pollen grain

Premises:

Which stage is indicated by label 7?

Responses:

four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac

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

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 grains are released from the anther when the pollen sacs split open

pollen sacs form in an anther

uneven cytoplasmic divisions produce a seven-celled female gametophyte

mitosis of a microspore followed by differentiation results in a two-celled pollen grain

Correct Answer:

Premises:

Responses:

four haploid ( n )microspores form by meiosis and cytoplasmic division of a cell in the pollen sac

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

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 grains are released from the anther when the pollen sacs split open

pollen sacs form in an anther

uneven cytoplasmic divisions produce a seven-celled female gametophyte

mitosis of a microspore followed by differentiation results in a two-celled pollen grain