Biology, 18.07.2019 10:30 sophie5064
The nucleus of an atom has a charge. 1) neutral 2) positive 3) negative 4) non-existent
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Biology, 21.06.2019 15:00
Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble
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Biology, 21.06.2019 22:00
Does mitochondria still meet the definition of a eukaryote why or why not?
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Biology, 22.06.2019 01:00
Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.
Answers: 1
Biology, 22.06.2019 08:30
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
Answers: 2
The nucleus of an atom has a charge. 1) neutral 2) positive 3) negative 4) non-existent...
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