Genetics help please Now use the phylogenetic tree to determ

Genetics help please!

Now use the phylogenetic tree to determine which statements about secondary endosymbiosis are true. Select all that apply. Some organisms on the phylogenetic tree acquired chloroplasts through secondary endosymbiosis. Core Cercoza and Euglenozoa (locations indicated by the red arrows) acquired their chloroplasts by secondary endosymbiosis from green algae. Some organisms on the phylogenetic tree acquired mitochondria through secondary endosymbiosis. The chloroplasts of green algae and glaucophytes are more similar than the chloroplasts of green algae and red algae. (The locations of these organisms are indicated by the purple arrows.)

Solution

From the phylogenetic tree, we can observe that option 3&4 are incorrect.

None of the organism has acquired mitochondria by secondary endosymbiosis but only by primary endosymbiosis.

Red algae and green algae share more closeness than Chloroplast of green algae and glaucophytes.

Thus, Correct options are:

1 & 2.

Some organisms on the phylogenetic tree acquired chloroplasts through secondary endosymbiosis.

Core Cercoza and Euglenozoa (locations indicated by the red arrows) acquired their chloroplasts by secondary endosymbiosis from green algae.