Answer:
The correct answer is
1. 5' end.
2. guanosine
3. 5′ to 5′ triphosphate linkage.
4. On the 7th position.
5. 2′ hydroxy-groups of the first 2 ribose sugars.
Explanation:
The eukaryotic mRNA is processed or modified with a guanosine cap at 5' end and poly-A tail at 3'end before translation.
The process of adding a cap at 5' end of a growing mRNA is known as capping. The process of capping adds guanosine nucleotide at the 5'-end of mRNAs by 5′ to 5′ triphosphate linkage. This guanosine is modified by methylating at the 7th position of the atom. The mRNA is further modified by methylation of first two ribose sugars at their 2′ hydroxy-groups. This capping is advantageous to the sequence as it protects the end from phosphatases and nucleases.
The true statement for the energy in ecosystems is "Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis". The correct option is A.
<h3>What is ecosystem?</h3>
An ecosystem is a geographical area in which plants, animals, and other organisms, as well as weather and landscape, coexist to form a life bubble.
Ecosystems contain both biotic and abiotic components. Plants, animals, and other organisms are examples of biotic factors.
Energy must be transmitted throughout an ecosystem. The sun is the ultimate source of energy in an ecosystem.
Plants and marine ecosystems make up the majority of the terrestrial ecosystem.
Thus, the correct option is A.
For more details regarding ecosystem, visit:
brainly.com/question/13979184
#SPJ1
Answer:
embryos (the organisms early stage foetal development )
Tough one would have been expressing another way?
