Choose the One Most Appropriate Answer for Each

question 20

Multiple Choice

Choose the one most appropriate answer for each.
-microspore

• A)​haploid cell that gives rise to pollen grain
• B)​releases two sperm cells when it reaches and penetrates female gametophyte
• C)​develops into a fruit at maturity
• D)​created from a triploid cell that is produced when one sperm cell fuses with the endosperm mother cell
• E)​reproductive organs that produce the plant's male gametophytes
• F)​modified leaf with pigments and fragrance-producing cells
• G)​immature male gametophyte
• H)​female reproductive organ
• I)​landing platform for pollen
• J)​contains pollen sacs
• K)​forms in an ovule and gives rise to a female gametophyte
• L)​outermost whorl of leaf parts on a receptacle; generally green, but sometimes pigmented
• M)​region of carpel that receives pollen grains
• N)​arrival of pollen on a receptive stigma
• O)​forms a seed at maturity

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Definitions:

Chi-Square Test

A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in one or more categories.

Expected Frequency

The number of times an event is predicted to occur in a statistical experiment based on the probabilities of outcomes.

Expected Cell Frequency

The predicted number of observations that fall into a specific category or cell within a contingency table.

Sample Size

The number of observations or data points collected in a statistical sample.