tRNA-precursors were smaller than the modern tRNA and their primary function was to participate in the formation of new structures by joining two or more RNA molecules.
The adaptor hypothesis is the explanation of how information could be extracted from a nucleic acid into a string of amino acids in a specific sequence. The proposed explanation involved recognition between the adaptor (today tRNA) and the template nucleic acid .
Answer:
The characteristic best distinguishes glycolysis and the Krebs cycle from the electron transport chain is the amount of ATP produced. In glycolysis net ATP production is 2 ATP and in 1 Kreb's cycle 38 ATP are produced.
Answer:
Devices used to convert thermal energy to mechanical energy are called heat engines.
The answer is heat engines.
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Answer:
The correct option is D. Cow dung would have piled up in Australia.
Explanation:
The native beetles of Australia did not feed on the dung from the non-native cattle. As the cattle were imported from another country, the native beetles did not recognize the texture of the dung and hence, did not feed on them. As a result, cow dung started to pile up. To get rid of the dung, the best possible solution was to import beetles from a different country which recognized the texture of the dung and could feed on it.
