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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
why in the preparation of a karyotype analysis is the use of a substance like colchicine interestingcolchicine is a substance that disallows the
which type of genetic disease can be identified from the visual analysis of the number of chromosomes present in a karyotypethe counting and
what is karyotypethe name karyotype is given to the set of chromosomes of an individual generally when visualized and identified under the microscope
what is the rh typing of the mother and of the fetus in the hemolytic disease of the newbornin the hemolytic disease of the newborn the mother is rh-
what are the inheritance and dominance patterns of the rh blood systemthe inheritance pattern of the rh blood system is autosomal dominant ie the
how is the blood typing concerning the abo system and the rh usually donein the blood typing for the abo system and the rh system a blood sample is
what is blood typingblood typing is the determination by means of tests of the categorization of a blood sample concerning blood group systems
how are the antibodies against the rh factor formedanti-rh antibodies are made by humoral immune response when an rh- individual makes contact with