Biology, 31.01.2020 18:01, school4life110
Which description best explains watson and crick's dna model? . a: dna single stranded molecule that has nitrogenus base towards its exterior . b: dna is a double-helix made of 2 strands linked together with hydrogen bonds . c: dna is a double-helix that contains nitrogenious bases towards its exterior
Answers: 3
Biology, 22.06.2019 07:50, kkstone
One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.
Answers: 3
Biology, 22.06.2019 08:40, keilyjaramillo2870
What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.
Answers: 3
Biology, 22.06.2019 13:00, unknown6669
Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.
Answers: 3
Which description best explains watson and crick's dna model? . a: dna single stranded molecule that...
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