Can you check the following:

1. Draw a Punnett Square to show a dog breeder inbreeding to maintain a purebred line of golden retrievers.

Ans: would the parental cross look like Gg x GG or GG x GG?

2. Draw a Punnett Square to show a farmer crossing a plant that produces a large tomato with a plant that produces a sweet tomato, to get an offspring tomato that is both large and sweet.

Ans: would the parental cross look like LL (large) x SS (sweet)?

3. In humans, the ability to roll one's tongue is common. The ability to roll (T) is dominant to non-rolling (t).
a. What is the parental cross?
Ans: Tt x Tt

b. List the possible genotypes and their probabilities
Ans: TT (25%), Tt (50%), and tt (25%)

c. List the possible phenotypes and their probabilities.
Ans: Tongue rolling (75%) and non-
rolling (25%)

4. Two short haired guinea pigs are mated several times. Out of 100 offspring, 25 of them have long hair. What are the probable genotypes of the parents? (short is dominant, S)
Ans: SS x Ss

a. GGxGG

b. LLxSS
c. ok, and genotypes are right for that. But a parent cross could be TtxTT would give all rolling tounges.
d. correct