Answer:
Some substance in the infectious S strain could change the harmless R strain into the more lethal form.
Explanation:
These first type of experiments where crucial to advance in DNA knowledge.
In one experiment, they treated the material with enzymes that destroy all proteins. This is important because scientist notice that there was something else that was causing the strain to change into a lethal form and was heritable (DNA). Know a days we know that plasmids are responsible for such transformation.
The ribosomes
they attach to rough endoplasmic reticulum
The correct answer is Economic cycle.
The natural fluctuation in economy between the period expansion (economy growth) and contraction (recession) is known as the economic cycle.
The normal growth and downturn in the economy is the basic definition of Economic cycle.
During the time of expansion the investors seek to purchase companies and shares and during the time of contraction the investors look to invest and purchase the companies such as utilities and healthcare.
A good way to reduce acid rain is use less fossil fuels, as they cause pollution which results in acid rain.
The situation in which allele frequencies in the gene pool of a population remain constant is called. genetic equilibrium. The type of genetic drift that follows the colonization of a new habitat by a small group of individuals is called.
