If True, Which of the Following Would Be Most Important

question 16

Multiple Choice

If true, which of the following would be most important in determining whether? P. chromatophora's cyanelle is still an endosymbiont, or is an organelle, as the term cyanelle implies?

• A)if P. chromatophora is less fit without its cyanelle than with it
• B)if the cyanelle is less fit without the host cercozoan than with it
• C)if there is ongoing metabolic cooperation between the cyanelle and the host cercozoan
• D)if the magnesium-containing porphyrin ring in the cyanelle's chlorophyll molecules is built by the cyanelle, whereas the organic portion of the chlorophyll molecules is built by the host cercozoan
• E)if there has been movement of genes from the cyanelle genome to the nuclear genome, such that these genes are no longer present in the cyanelle genome

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Definitions:

Generative Cell

In plants, a cell within the pollen grain that divides to form two sperm cells during fertilization processes.

Pollen Grain

The structure that contains the male gametophytes of seed plants, responsible for the fertilization of the ovule.

Pseudocopulation

A behavior in some plants and animals where an individual engages in mating-like activities with objects or organisms of another species, often to enhance pollination or dispersal mechanisms.

Orchids

A diverse and widespread family of flowering plants, known for their beautiful and often fragrant flowers.