I believe the answer is D. don't take my word for it though I may be wrong
The single mutation is in the B subunit of hemoglobin. one point mutation changed one amino acid and in malaria country the resulting trait, sickle cell trait, is very helpful to have in a heterozygous condition.
Hope this help:))
according to criteria such as salinity, depth, and whether the water is flowing or standing
Hi there!
The most important thing to note here is that eukaryotic cells have nuclei. This is the circular blob-like organelle which encases the DNA. Some other differences eukaryotic cells have over prokaryotic cells include more complicated organelles which are membrane bound.
If we look at these images, what we are looking for is a nuclei, as this will appear most evident. When we look at A and B, we can see a circular organelle that is extremely prominent. However, with C and D, that does not appear. C specifically, the nucleic code is exposed and not membrane bound, meaning it is not prokaryotic. D does not appear to contain a nucleus or any genetic material.
Thus, your answer is A and B.
Hope this helps!
