B B
B BB BB
b Bb Bb
If you create a punnet square with the parents, you can see all possible outcomes for the offspring. The offspring will be 50% homozygous dominant with brown eyes and 50% heterozygous also with brown eyes.
<h2>540 million years ago
</h2>
Paleozoic.
Era immediately follows Precambrian It lasted about 4.5 billion years.
When did abundant fossil evidence first appear in the geologic record.
540 million years ago.
