Explain which proteins are changed in a person with cystic fibrosis by deleting only 3 nitrogen bases from the gene code.

Explanation down below!

Explanation: Genetic abnormality causes cystic fibrosis involving the deletion of just three DNA bases, ( a codon ) from the CFTR gene, as you should know. Cystic fibrosis is classified as a recessive genetic disease, which means both copies of a person's CFTR gene have to contain the mutation for the cystic fibrosis to occur.

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chordata is the answer

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus