Ans.
Sickle-cell disorder shows defected red blood cells, due to mutation in gene that code for hemoglobin. The mutated genes for sickle-cell disease are found in higher percentage of sub-Saharan African population as it provides protection against malaria as compared to population of United States.
Malaria is common in sub-Saharan Africa region and there, natural selection favored gene for sickle cells, because it might be beneficial to people having sickle cell disease that makes them able to survive in such condition and transmit their genes to offspring.
On the other hand, in those Africans, who moved to United States, where malaria is uncommon or absent, natural selection favored normal, wild type genes, resulting in fewer people with defected sickle cell.
Thus, the evolutionary process behind this is 'natural selection.'
Answer: Cellular transport independent of ATP like osmosis and difussion (Simple and facilitated).
Explanation: The animal affected has a mitochondrial disease that affects its capacity of ATP production, thus, the animal active transport will be afected since require ATP. On the contrary, the animal passive transport will be functional because its independent of ATP, like osmosis which is water transport in favor of concentration gradient and facilitated diffussion of small molecules.
Fermentation: When no oxygen<span> is used to break down food and release energy. Only plants have this organelle: chloroplast (hint: it is where </span>photosynthesis<span> takes place); Before . What do the small numbers in the </span>equation<span> represent? a) </span>Atoms<span> b) </span>Molecules<span> c) Base. </span>How many Molecules<span> of Carbon Dioxide are inputs?</span>
Answer: D. Exponential
Explanation:
The exponential growth occurs when the resources are unlimited to the population of the species. The population grows rapidly at a constant rate. Thus the population size increases over concerned period of time. When the resources become limited the growth collapses this is called as logistic growth.
The exponential growth can be shown by the J-shaped curve.
Answer:
It is used for lipogenesis
Explanation:
Carbohydrates are broken down into glucose and then this glucose is absorbed in the blood from where it enters the cell and used for ATP production.
The excess of glucose in the body is used for lipogenesis. So excess glucose converts into fat and stored in the liver. Some fat is also stored as glycogen in the liver and muscles by the action of insulin but the majority of excess glucose converts into fat.
This fat provides a reserve energy source in our body. Therefore the right answer is- It is used for lipogenesis.
