3 years ago

Class Agatha have a common name that stems from their key characteristics. what is the common name?

Biology

1 answer:

astra-53 [7]3 years ago

5 0

Jawless fish. The class Agnatha is a class made up of jawless fish. It excludes all vertebrates with jaws.

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Please help! c:

patriot [66]

I think I understand even without the picture. I'll add a picture of the Punnett Square filled in, but what you're crossing is

Tt x tt (heterozygous crossed with a homozygous recessive)

The ratio you get in the end is 2 heterozygous (Tt) and 2 homozygous (tt) offspring, so the ratio is 1:1.

So the percentage of offspring that are homozygous recessive is 50%.