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.
D. is the answer because the fossils are in rock and sedimentary rock.
The air can be considered polluted once harmful or toxic substances are being released and introduced into the air and can bring many types of diseases or health problems to the living organisms in it. Some actions can be done in order to remedy air pollution and these include: government passing regulatory laws, testing for car emissions and carpooling so there will be less driving.
Answer:
C.
Explanation:
Darwin was the dather of evolution. he went on a journey and observed the finches on this journey
Answer:
2 Hydrogen atoms and 1 oxygen atom.
Explanation:
The chemical makeup of Water () is 2 Hydrogens and 1 oxygen. These atoms are removed from each other when dehydration occurs.