Methane, overview, carbon dioxide, Fluorinated Gases
Answer:
Statement A - cellular membrane
Statement B - eukaryote
Statement C - spore
Statement D - prokaryote
Explanation:
The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.
Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.
Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.
An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.
1. The correct answer is: a. There are more mRNA bases than amino acids.
The transcription of monocistronic mRNA in prokaryotes is a rare process (it is more characteristic for the eukaryotes). Monocistronic mRNA is RNA, which encodes for only one or specific protein. Three bases of mRNA encode one amino acid of protein, thus it has more bases than amino acids of the final product, protein.
2. The correct statements are:
The mRNA contains 5' and 3' untranslated regions.
The stop codon does not code for an amino acid.
The start site of transcription is upstream of the start codon.
Each codon contains 3 RNA bases.
All of these approve that more bases are in mRNA since not all of them are translated into amin oacids.
Other statements are hallmarks of eukaryotic RNA processing, and therefore not relevant to prokaryotes.
C i think, i just had a quiz on this lol
