The Following Diagram Depicts the Life Cycle of a Cherry

question 26

Short Answer

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. a.The pollen tube reaches the ovule, penetrates it, releases two sperm cells, and double fertilization occurs.
b.Mitosis of a microspore followed by differentiation results in a two-celled pollen grain.
c.Three megaspores disintegrate; in the remaining megaspore, three rounds of mitosis without cytoplasmic divisions produce a single cell with eight haploid nuclei.
d.Pollen grain lands on a receptive stigma and germinates.
e.An ovule forms in the ovary and a cell in the ovule enlarges.
f.Pollen sacs form in an anther.
g.Four haploid (n ) megaspores form by meiosis of the enlarged cell in the ovule.
h.Four haploid (n ) microspores form by meiosis of a cell in the pollen sac.
i.Uneven cytoplasmic divisions produce a seven-celled female gametophyte.
j.When the pollen sacs split open, the anther releases pollen grains.
-Which stage is indicated by label 1?

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Definitions:

Control Series Design

An extension of the interrupted time series quasi-experimental design in which there is a comparison or control group.

Interrupted Time Series

An analytical method that assesses the impact of an intervention on a time series of data points.

True Experimental

A type of experimental design that includes a control group and random assignment to groups to test the effect of an intervention.

Cohort

A group of people born at about the same time and exposed to the same societal events; cohort effects are confounded with age in a cross-sectional study.