Having an extra, missing, or damaged chromosome.
Answer:
c. it causes red blood cells to distort which makes them less hospitable to Plasmodium, the parasite that causes malaria
Explanation:
The normal haemoglobin is a tetramer of four globin chains (2 alpha and 2 beta chains).
When a gene mutation occurs, i.e the substitution of a single nucleotide which leads to the formation of valine instead of glutamate, the hemoglobin would become sickle shaped. This gives rise to the Hb S allelle.
Therefore in malaria-endemic regions, the S allelle is beneficial because the distorted or sickle-shaped red blood cells would be less hospitable to Plasmodium and this would confer protection on the host.
Answer:
yaeh
Explanation:
Forests occupy the most favourable environments, where moisture is adequate for growth and survival of a tall, dense vegetation dominated by trees. Deserts are found where moisture is so lacking that a continuous, permanent vegetation cover cannot be maintained. Grasslands lie between these two extremes
YES, Prokaryotes, Eukaryotes and Viruses have liquid cytoplasm
Answer:
Number 1
Explanation:
The smoke from the fire will go everywhere and shortly but surely cause air pollution. hope this helped