Co-dominant alleles, in other words because they both appear in the phenotype they are both dominant.
Answer: the major function of mucus is to protect the lung through mucociliary clearance against foreign and chemicals entering the lung.
Explanation:
Answer:
d) a polypeptide missing an amino acid.
Explanation:
Deletion is a type of mutation when one or more codons from the reading frame are removed. This results in the production of a relatively shorter mRNA that lacks one or more codons otherwise present in the non-mutated mRNA. When there is a deletion of a single codon in the gene for cystic fibrosis, the resultant shorter mRNA codes for a polypeptide chain that does not carry one amino acid. For example, deletion of one codon results in deletion of a Phe residue present at position 508 in CFTR. The mutated transmembrane protein CFTR folds in an improper way.
Answer:
Diffusion occurs in a type of cell transport called passive transport.
This type of cell transport doesn't use any energy. It goes from a high to low concentration gradient.
