Answer:
RNA world hypothesis.
Explanation:
RNA is present as the genetic material in some viruses only. RNA is produced from the template DNA by the process of transcription and helps in the protein gene expression.
According to RNA world hypothesis, RNA is considered to be the first genetic material as it has the ability to store the genetic material. The oxyribose sugar makes the RNA more reactive than the DNA molecule. The RNA also has the ability to work enzyme known as ribozyme. Hence, RNA has the ability to store the information and acts as catalyst.
Thus, the answer is RNA world hypothesis.
Answer:
transportation
Explanation:
Transportation (28.2 percent of 2018 greenhouse gas emissions) – The transportation sector generates the largest share of greenhouse gas emissions.
hope this help
Most bony fishes have two sets of jawsmade mainly of bone. ... They do not have pharyngeal jaws. Generally jaws are articulated and oppose vertically, comprising an upper jaw and a lower jawand can bear numerous ordered teeth.
The cerebral cortex is considered the ultimate control and information-processing center in the brain.The area of the cerebral cortex in the human brain which controls voluntary muscle movement is the motor cortex. The motor cortex is responsible and involved <span> in the planning, control, and execution of </span>voluntary movements<span>. </span>
<span>The motor cortex is located in the frontal lobe of the cerebral cortex.</span>
