When you looked at pictures of the lemurs, you saw as many as seven different looking
varieties (phenotypes). After looking at the pictures of the mating pairs, you narrowed
it down to five. Next, you saw that most of them can mate with one another to produce fertile
offspring - but two of them couldn't interbreed. Now it's time to look at their chromosomes
and shed further light on their differences.
Look at each slide under the microscope and count the number of chromosomes you see.
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