In these transcripts, we see that the mother is asking Jess a lot of questions. The mother does this to attract and hold the babies attention, and make the conversation more predictable. This helps Jess to do something without seeing so demanding. The mother also uses a lot of simple sentences to help make the process of breaking down language into understandable chunks.
As for Jess, she is currently at the telegraphic stage, so she is beginning to understand grammar. There is use of negations, and the use of articles in her speech. There is also a use of the first person, and the acquisition of personal pronouns. The mother also keeps repeating certain sentences whereby a gap is filled with a different words to help keep the conversation predictable. The mum also uses a lot of concrete nouns to help Jess' language process thrive.
Jess is also using a lot of phonemic reduction that the only sounds being made are needed for their own language. However, Jess continues to get her sentences sound grammatically incorrect.
