Answer:
The correct option is A) RNA polymerase.
Explanation:
RNA polymerase is an essential enzyme complex to carry out transcription, these enzymes are responsible for transcribing DNA into RNA. Using a DNA template, RNA polymerase builds a new RNA molecule through base pairing. This process is the first step of gene expression, and is called transcription. RNA polymerase binds to DNA in a very particular region or sequence, called a promoter.
Melanoma is the type of cancer Mary
Lou had, Sunburns in adulthood assume to be the mostly associated with
melanoma. Melanoma, the most severe type of skin cancer, develops in the cells
(melanocytes) that produce melanin — the pigment that gives your skin its colour.
Melanoma can be also apear in your eyes and, rarely, in internal organs, such
as your intestines.
Answer:
Here's your answer
Explanation:
Normative economics focuses on the value of economic fairness, or what the economy "should be" or "ought to be." While positive economics is based on fact and cannot be approved or disapproved, normative economics is based on value judgments.
Answer:
Cholesterol is a structural component of the cell membranes of animals. Because of cholesterol that provides cell membrane structural integrity and fluidity, animal cells need not to have cell walls such as that in bacterial and plant cells.Cholesterol reduces permeability of lipid membranes. ... Cholesterol plays has a role in membrane fluidity but it's most important function is in reducing the permeability of the cell membrane. Cholesterol helps to restrict the passage of molecules by increasing the packing of phospholipids.
Explanation:
Answer:
In grassland ecosystem, first trophic level is the producer. Producers are the organisms which makes their own food, here the producer are grasses. The second trohic level contain herbivores which feed on these grasses. These herbivores are eaten by secondary consumers which belongs to third trophic level and secondary consumers are then eaten by tertiary consumer.
The population of producers are very high so it is placed at the base while tertiary consumer are placed on the top due to low population.