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: exosphere
Explanation: Exosphere. This is the outermost layer of the atmosphere. It extends from the top of the thermosphere to 6,200 miles (10,000 km ) above the earth. In this layer, atoms and molecules escape into space and satellites orbit the earth.
A hypothetical description of the complex entity or process
Answer: Any temperature above optimal
(above 39°C)
Explanation:
Seizures are MOSTLY known to occur at temperatures higher than the normal body temperature of 37°C.
Usually, fevers symptoms include high body temperature. So, any temperature above optimal
(above 39°C) is the best answer to give
Answer:
The symbiotic relationship of ruminants and the cellulose digesting micro organisms
Explanation:
Prairie grass contains cellulose in their cell walls and animals like cattle cannot break them by themselves as they lack the enzymes required. Instead they possess multi chambered stomach containing cellulose digesting microorganisms such as bacteria , to help break down the cellulose contained in the grass .
This relationship is symbiotic as the cattle provides steady supply of food and a dwelling place for the microorganisms, which in turns digest the cellulose rich meal of the cattle.
Their teeth (molars) are also modified for chewing the grass