Option A I guesss. Not sure
Answer:
Addition of poly A tail and and addition of 5' cap
Explanation:
In eukaryotes, many post-transcriptional modification takes place like 5' capping, polyadenylation, and splicing. In 5' capping 7-methyl guanosine is added toward the 5' end of mRNA by the action of a enzyme called guanyl transferase. This cap protects mRNA from degradation.
In polyadenylation up to 250 adenosine nucleotides are added at the 3' end of the mRNA and it is called poly-A tail. Poly A polymerase is the enzyme that is responsible for polyadenylation.
Therefore two main post transcription modifications are 5' capping and polyadenylation.
Answer:
<em>The correct option is b) exponential growth curve</em>
Explanation:
A J-shaped curve can be described as a curve on a graph which represents the phase of exponential growth. During this phase, the population of a certain organism expands rapidly in an exponential manner unless it is stopped due to some factor such as environmental resistance. A J-shaped curve will usually be seen in a new environment when the number of resources is more in the environment to support the growth of the population.
Answer:
kaçıncı sınıf ve hangi ders için?
Answer:
True.
Explanation:
Vitamin D is a fat soluble vitamin that is responsible for fostering the absorption of calcium, magnesium and phosphate in the body.
The synthesis of calciferol is dependent on the availability of a related steroid called cholecalciferol (vitamin D3), which may be synthesized in the skin or absorbed from the diet because keratinocytes of the epidermis and fibroblasts of the skin is response for producing vitamin D3(calciferol) by absorbing it from ultraviolet light when during exposure to UV B photons which protolyses provitamin D3 to pre vitamin D3 in the human body.
It can also be gotten from food sources like milk, cheese, cereals, liver,meat e.t.c.
