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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.
What are Fitness Tests? Testing is an important evaluation tool for the sports performer as it gives them an insight into their current physical condition and the effectiveness
Define Growth and Development of Infants and Preschoolers? In this unit, we learnt about the various aspects related to the growth and development of infants and preschoolers.
Q. On which organelle of the cell structure does intracellular digestion depend? What is the chemical content of those organelles? Intracellular digestion take place by the act
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What do you understand by Flagella. A cellular hairlike locomotory structure which comprise an extension of the plasma membrane surrounding a 9+2 organization of microtubules.
what SOAP is: Subjective - The data includes information obtained from the patient or the patient's family regarding the problem. Objective dat a - the data is gathered f
Respiration Robert Boyel and Robert Hook first of all explained the meaning of respiration. Main aim of respiration is to liberate energy in the form of A.T.P. Oxidati
In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube? 1. Embryo only, upto 8 cell stage 2. Either zygote or ear
what is radula?
What are the three qualities specific to colour vision There are three qualities specific to colour vision- hue, saturation, and brightness. Hue: Hue is the function of a wa
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