Question

Given diagram illustrates an evolutionary tree.
Which of the following statements can be deduced from the given evolutionary tree?
(i) The ancestral eukaryotes were anaerobic.
(ii) All eukaryotes possess mitochondria.
(iii) Eubacteria and Eukaryota have a common ancestor whereas Archebacteria have a unique and independent origin.
(iv) Mitochondria and chloroplasts have similar genomes.
(v) Mitochondria are present in plants, animals and fungi.
(vi) Chloroplasts and mitochondria arose as endosymbionts.
(vii) Fungi and animals lost chloroplasts during evolution.

• A. (iii), (v) and (vi)
• B. (i), (v) and (vi)
• C. (ii), (iii), (iv) and (v)
• D. (i), (v), (vi) and (vii)

Answer 1

Answer: (B)

(i), (v) and (vi)

(i) The ancestral eukaryotes were anaerobic.

(v) Mitochondria are present in plants, animals, and fungi.

(vi) Chloroplasts and mitochondria arose as endosymbionts.

So, the correct option is '(i), (v) and (vi)'.