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Natural selection can therefore mean differential reproduction among members of the sarne gene pool. We earlier said that selection would promote those alleles that give rise to phenotypes that are better adapted to a given environment. In other words, the frequencies of 'such alleles would tend to increase and those of ill-adapted ones would tend to decrease. What we are sayingis that natural selection is a matter of changes in gene frequencies. Differential reproduction has a dual role to perform. One it leads to or maintains adaptations and therefore determines whether individuals of a population or species will survive; and two, it is a process which determines what changes will occur in the frequencies of alleles in a gene pool of sexually reproducing individuals.
Anti Lipid Drugs : The current thinking is that it is very important to keep lipid levels low. It helps in preventing atherosclerotic changes in venous grafts and the long-term p
What is a biome? A biome is a prevailing ecosystem constituted by same biotic and abiotic factors present in one or more regions of the planet.
Hydrops allantois (Hydro allantois) This condition is uncommonly seen in dairy cattle and buffaloes. Accumulation of excessive allantoic fluid may be progressive after mid ges
CAT assay is an enzyme assay. CAT stands for the chloramphenicol acetyl transferase, a bacterial enzyme which inactivates the chloramphenicol by acetylating it. CAT assays are man
Of which substance are microtubules made? In which structures and cellular processes do microtubules participate? Microtubules are made of consecutive dimers of the protein tub
The energy - releasing metabolic process in which substrate is oxidised without an external electron acceptor is known as: 1. Glycolysis 2. Fermentation 3. Aerobic respira
What is the photoperiod? The Photoperiod is the daily time period of light exposure of a living being and the photoperiod may differ according to the period of the year.
Apparently. The untwisting, unzipping. Rezipping and retwisting occur sequentially and ensure that each newly formed double helix is exactly like other one. The final result is a p
Why do you think that bioinformatics is important? Ans) Today, we can use computers to access much more biological data than still before. You can learn a lot by analysi
Define hypertension, discuss its causes and explain its effects on the body. What role, if any, does medical imaging play in hypertensive patients? Explain and give examples.
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