Answer:
The cytoplasm of the egg cell is same as like that of the ordinary cell's cytoplasm.
It has yolk in its center which contains nucleus, nucleolus and germinal spot.
The mammalian ova contains a small amount of nutritive yolk which provides the nourishment to the embryo for a time being.
The cytoplasm of the unfertilized egg contains some unevenly distributed proteins, specifically the cytoplasmic determinants.
These determinants are the substances that plays a major role in the oocyte formation and maturation. Sometimes they are clumped together and then divided heterogenitically.
Answer:
The correct order of formation of cDNA or complementary DNA are described below.
Explanation:
The DNA that is synthesized from mRNA with the help of reverse transcriptase enzyme is known as cDNA or complementary DNA.
Formation of cDNA
Step 1 Mature RNA is isolated
Step 2 Reverse transcriptase provided with a primer,synthesize a strand of cDNA without introns.
Step 3 The mRNA is hydrolyzed by raising the pH.
Step 4 A primer site is created on the single stranded cDNA molecule.
Step 5 A complementary DNA strand is synthesized forming double stranded cDNA molecule.
One natural disaster has the ability to wipe out large crops and buildings that were used to fuel Earth's economy. It can also lead to a lack of biodiversity of an area that experienced the disaster.
For example, a tsunami can destroy buildings and kill an abundance of wildlife.
I hope I helped!
<span>Endo genic literally means 'within work' ie driven by energy. So the answer that is correct will be option B ie " A large amount of energy is required to activate the reaction."</span>
