Answer:
Nicolaus Copernicus
Explanation:
Nicolaus Copernicus challenged the notion proposed by Aristotle, which stated that there were four physical elements: water, fire, earth and air. It also stated that Earth was the centre of the universe, and that the four elements were below the moon and other planets, all moving around the Earth.
Copernicus challenged this with the heliocentric theory, which included assumptions that the Earth was the centre of gravity and its orbiting moon, that the sun is close to the centre of the universe with the planets orbiting it, and that the universe is much larger than the scale that Aristotle suggested.
Answer:
The correct answer is a) the inducer prevents the repressor from binding to the operator
Explanation:
In lac operon lac I gene synthesize repressor protein that binds to the operator region of the lac operon and inhibits the transcription of the mRNA by partially blocking the promotor region of lac operon where RNA polymerase binds.
When the inducer is present it binds to the repressor protein and makes a conformation change in the protein as a result repressor protein is not able to bind the operator region of the operon and do not able to block the transcription of the lac operon.
Therefore in the presence of inducer transcription of operon occurs so the right answer is a) the inducer prevents the repressor from binding to the operator.
The color on the petals attract pollinators, such as bees!
Continental air masses are characterized by dry air near the surface while maritime air masses are moist. Polar air masses are characterized by cold air near the surface while tropical air masses are warm or hot. Arctic air masses are extremely cold.
The blending of traits is a form of intermediate inheritance which shows the property of not completely dominating over the other trait. Such a type of inheritance results in the formation of a third phenotype. This process of blending where on trait does not mask over its paired allele is called as the incomplete dominance
This feature is mostly absorbed in physical features like eye color and skin color
