I think the correct answer from the choices listed above is option B. A modification of the leaves into the spine in a cactus plant can be seen The spines are modified leaves. It helps defend the plant and also reduce the surface area which helps limit loss of water.
Answer:
Photosynthesis is a process whereby plants uses sunlight to prepare their own food using sunlight and without energy such as heat cannot perform its functions.
Leaves are the only natural item listed.
Pesticides, smog, and disposable products are not natural.
The position within the original arginine codon where the point mutation most likely occurred was the second nucleotide. In this case, the mutation was CGA >> CAA.
<h3>Mutations and codons</h3>
A mutation is any alteration in the nucleotide sequence of an organism.
A point mutation is a single base substitution that doesn't change the open reading frame of a given protein.
In this case, the CGA codon encodes for Arginine, whereas the CAA codon encodes for Glutamine, thereby the mutation likely occurred in the second base (C<u>G</u>A >> C<u>A</u>A)
Learn more about mutation here:
brainly.com/question/17031191
