Eukaryotic genome variation (check all that apply):

a. Can include insertion and deletions of segments of DNA.

b. At a chromosomal level may differ within a genus and drive speciation.

c. Is very rare within a species.

d. Can take the form of single base pair changes, insertion/deletion variation and changes in numbers of repeats in elements.

a. Can include insertion and deletions of segments of DNA.

d. Can take the form of single base pair changes, insertion/deletion variation and changes in numbers of repeats in elements.

Explanation:

Eukaryotic genomes are multiple genomes : nuclear, plastid, mitochondria, chloroplasts.

Plastid genomes resemble prokaryoic genomes and they can iclude inserionsa and deletions of segments of DNA.

Multiple linear chromosomes. Monocistronic transcription units and discontinous coding regions (introns and exons).

THey can also take the form of single base pair changes, insertion/deletion variation and changes in numbers of repeat in elements.

Hence option a and d, both apply to eukaryotic genome variation.