The nucleus is missing in a mature RBC
Answer:
When talking about dizygotic and not monozygotic twins, they share the uterus, but they do not share the bag, nor the nutritional sources nor the placenta, if they can share the same amniotic sac depending on how far one ovum separated from another.
Thus, being two different ovules and fertilized by two different sperm (unlike homozygotes, which is an ovum fertilized by a sperm that divides into two and share the same development medium) they present the same genetic load but not the expression of this or the same phenotype since they develop in two different environments, this was raised in certain investigations and it was presented that even the different location that they present in the uterus can influence the different phenotypic manifestations of the genome.
There are studies that maintain that immunosuppressive treatments in grafts between monozygotic twins do not make sense and should not be done since it was experimented in certain cases and the patients had no problem of rejection in allografts, since it is argued that they have the same genotype and this genotype. It is usually expressed in the same way, therefore it is rare that the immune receptors and the immune response differ and consider something foreign to a tissue that presents histocompatibility almost 100 percent.
In contrast, in dizygotes it is different, allografts are made but under protocol immunoregulatory treatments that prevent rejection of the allogeneic implant or graft. Thus, certain researchers argue that having developed other phenotypes between twins, this causes the histocompatibility complex to express itself differently and thus the immune response does not recognize it as its own.
Explanation:
With the wording then we can conclude that the dizygotic twins corrupt the myth that transplants of tissues or organs can be performed without immunomodulatory treatment, if or if drugs must be administered to avoid rejection of said tissue or organ.
Photosynthetic organisms, known as photoautotrophs, capture the energy from sunlight and use it to produce organic compounds through the process of photosynthesis. In photosynthesis, the inorganic compounds of carbon dioxide, water, and sunlight are used by photoautotrophs to produce glucose, oxygen, and water.
Answer:
281474976710656
Explanation:
As each half hour passes, the colony of bacteria doubles. Initially, the numbers are fairly low, but the amounts become larger and larger as they compound.
Hour 0- 1
Hour 0.5- 2
Hour 1- 4
Hour 1.5- 8
Hour 2- 16
Hour 2.5- 32
By hour 10, the bacteria will have increased to 1048576. By hour 15, the number of bacteria will be 1073741824. By hour 24, the colony will contain 281474976710656 bacteria.
Answer:
Cell A is laterally being inhibited by other neighbouring cells.
Explanation:
Cell A showing lower activity compare to cell B despite both having high simulation is because Cell A is surrounded by neighbouring cells and these neighbouring cells hinder the action potential of cell A through their numerous activity they perform around cell A.
Therefore they restrain the activities of cell A.