Biological evolution is termed as any genetic change in a population that is passed on over successive generations. These genetic variations are not consistent as they may be large or small, prominent or not noticeable at all. To sum it up, biological evolution highlights how life has changed over time. Arguments of this theory have been advanced by Charles Darwin. His premise was of a scientific nature where he postulated biological evolution by means of Natural Selection. Charles Darwin’s Natural Selection is based on three assumptions about organisms namely: survival, adaptation and reproduction. This theory, however, has received criticism from ...
Molecule Critical Thinkings Samples For Students
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Reflection Questions
Question Number One:-
a) Sexual reproduction is defined as the formation of new organisms following the coming together of two independent gametes. Its main advantages includes the ability to produce wide ranging amounts of genetic diversity and ability to establish variable offspring’s that are different from the original parents, hence having high probability of survival in the changing environments . Other notable advantages include the ability to be reproduce offspring’s that develop from two parents ,hence reduced chances of inheriting deleterious mutations.
b) In my own perspective, I tend to ascertain that genetic testing to select embryos with certain traits ...
Abstract
Plasmodium falciparum is the parasite responsible for the deadly disease, malaria. The parasite is transmitted through the injection of sporozoites into the human blood stream. These sporozoites are transported in the blood stream to the liver. The sporozoites invade the hepatocytes and differentiate into merozoites. The merozoites invade the RBCs of the host; starting the blood stage of infection. The trophozoite stage ingests and degrades approximately 80% of the hemoglobin in the host cell. The hemoglobin is broken down into peptides due to enzymatic action by a metalloprotease and cysteine and aspartic proteases. Haematin is first released as a byproduct of ...
Describe the Hemoglobin Digestive Process
P. falciparum, is the parasite responsible for the malaria, a disease that causes approximately one million deaths annually. It undergoes the process of erythrocytic schizogony which is responsible for the clinical manifestations of malaria. The trophozoite ingests and degrades approximately 80% of the hemoglobin in the host cell (Brayl 2005). As the trophozoite continues to develop, its endolysosomal system takes up the cytoplasm of the host cell using cytosomes which contains host hemoglobin. Cytosomes are formed by an invagination formed from the PVM (parasitophorous vacuolar membrane) and PPM (parasite plasma membrane) from which transport vesicles are pinched off. These vesicles ...