<span>Out of the following given choices;</span>
A. Further antibody attack.
B. Phagocytosis
C. Helper T cells
D. B cells.
E. None of the above.
The answer
is B. Phagocytises is the engulfment of a particle from the external
environment, by a cell, for ingestion. This is especially critical for the
function of macrophages, which are immune cells. These macrophages have receptors
for the Fc region of the immunoglobulin on their cell membrane surface.
The answer is 1/2.
If:
R - t<span>he dominant allele for red kernels
r - t</span><span>he recessive allele for yellow kernels
Then:
RR - dominant homozygote
Rr - heterozygote
rr - recessive homozygote
The cross Rr x rr will result in 1/2 of offspring with red kernels (Rr) and 1/2 of offspring with yellow kernels (rr):
Parental generation: Rr x rr
Offspring generation: Rr Rr rr rr
So, there are 2 out of 4 Rr offspring (2/4 = 1/2) and 2 out of 4 rr offspring (2/4 = 1/2).</span>
Information about the parts of a cell, its location and
role will help describe the appearance of a cell's content.
Organelles are cell structures that include the nucleus, cytoplasm,
cell membrane among others. One can view these using a light microscope.
1. Cell Membrane is a fluid mosaic. It is the outer boundary
of the cell.
2.Cytoplasm is the fluid inside the cell. It is located
between the nucleus and the cell membrane.
3.Nucleus is the control center of the cell and is located
at the center.