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.
Cell wall : provides rigidity and structural support
Chloroplast : absorbs light energy
Vacuole : filled with cell sap for storage and to keep cell rigid and turgid
The answer is A
Explanation:
Two classes of genes, oncogenes and tumor suppressor genes, link cell cycle control to tumor formation and development. Oncogenes in their proto-oncogene state drive the cell cycle forward, allowing cells to proceed from one cell cycle stage to the next.
<span>The process when you are carefully looking at an object or process is called an observation. The object is the primary source, from which with careful and active observation information is obtained. Observation can also include usage of instruments in order to collect the data.
Other term used for observation is monitoring. </span>
