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how does the study of fossils strengthen the theory of evolutionthe study of fossils reveals ancient and extinct species having many same structures
in the scientific competition against fixism what are the main arguments that favor evolutionismthe major arguments in favor of evolutionism are
what is fixismfixism is the theory about the diversity of life on earth that affirms that the current existent species were identical to species of
what is the main theory opposed to evolution the major theory that opposes the evolution theory on the description of how species emerged
what is the problem that the theory of evolution and its rival theories try to solvethe problem that the theory of evolution or simply evolution and
how can coacervates be formed of phospholipids or polypeptidesphospholipids are amphipathic molecules ie they present a polar portion and a nonpolar
what are coacervatescoarcervates are small structures made of the aggregation of organic molecules under water solution by electrical attraction the
what are the main constituents of the earths atmosphere in our timethe present atmosphere of the earth is constituted mostly of molecular nitrogen n2
before the emergence of life of what gases was the earths primitive atmosphere constitutedthe earths primitive atmosphere was basically produced of
what is the autotrophic hypothesis on the origin of life the autotrophic hypothesis on the origin of life asserts that the first living beings on
what is the spontaneous generation hypothesisthe spontaneous generation hypothesys or abiogenesis asserts that life on earth has come from nonliving
what is the main moral problem about the cloning of human individualsbesides biological perils a very serious moral problem includes the nucleus
why are the recombinant dna technology and the nucleus transplantation technology still dangerousthe recombinant dna technology and the nucleus
what is the fact of molecular biology on which dna fingerprint is baseddna fingerprint the method of individual identification using dna is based on
what is pcr how does pcr workspcr polymerase chain reaction is a process to synthesize many copies of exact regions of a dna molecule known as
what is cloningcloning is the making of an organism genetically the same to another by means of genetic engineeringthe basis of cloning is the
what are plasmidsplasmids are circular dna molecules there in the genetic material of some bacteria they might be containing genes responsible for
what are dna ligases how do these enzymes participate in the recombinant dna technologydna ligases are enzymes specialized in tying the complementary
at the present level of the biotechnology what are the main techniques of genetic engineeringthe main methods of genetic engineering today are the
what is biotechnologybiotechnology is the application of biological knowledge to get new techniques materials and compounds of pharmaceutical medical
how is the early diagnosis of genetic diseases usually donegenetic disease might be diagnosed in the prenatal period by karyotype analysis in case of
what is consanguineal marriage why is the appearing of genetic disease more probable in the offspring of a consanguineal marriageconsanguineal
how do the repairing enzymes of the genetic system actthere are enzymes within the cells that detect errors or alterations in dna molecules and start
how are mutagenic agents related to cancer incidence in a population is cancer a disease transmitted to the individual offspringthe exposition of a
what is the karyotype found in down syndromedown syndrome is an aneuploidy ie a numeric changing of chromosomes within the cells compared to the