Answer:
B
Explanation:
Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) is a method of separating molecules based on the difference of their molecular weight.
Answer:
The post-transcriptional modifications in the mRNA produced as a result of the transcription in eukaryotes provide many advantages to the mRNA.
The two post-transcriptional modifications are the addition of 7-methylguanosine cap at 5' end of mRNA called capping whereas the addition of the poly(Adenyl) tail at 3' end called tailing.
The advantages of capping are:
1. Protection of nascent mRNA from the degradation.
2. Recognition by transcription factors helps in translation.
The advantages of tailing are:
1. Protection of the mRNA from enzymatic degradation in the cytosol.
2. Transcription termination
3. Export of the mRNA from the nucleus
I’m not sure if that’s the answer but what immediately pops up in my mind is the food chain. Primary consumers (herbivores) consume producers (plants). Secondary consumers consume primary consumers etc. At the end of the day, all kinds of animals die and decompose, providing nutrients for producers to grow, continuing the circle of life.
Lion is a top predator that hunts secondary consumers. Simba’s father died and contribute to the circle of life. I hope it gave you some pointers!