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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.
Describe Class Echinoidea in animal kingdom? Sand dollars and sea urchins either have flattened disc-like bodies, or are somewhat spherical. While they lack the typical five-ar
Which statement is correct? A. Synapomorphies identify monophyletic groups. B. A synapomorphy may arise due to covergent evolution. C. A synapomorphy is an ancestral trait. D. Syna
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what is the chemical reaction of respiration in cockroach?
What problem would most likely to occur if a haploid cell attempted to perform meiosis?
Define Translation Phase of gene expression process? The NDA which the transcript into m RNA is translated into protein with the help of ribosomes, m RNA, amino acids, a number
2.?In order to increase muscular force production, muscular contractions may be modulated in two ways. Explain.
Hypothermia : Hypothermia reduces the metabolic requirements of the body thereby reducing oxygen consumption. It also preserves high-energy phosphate stores of the body. At norma
What is meant when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without synthesis
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