Biology, 07.03.2020 04:30 lisxramirez
"DNA molecules were discovered in the decade after Darwin's death. make up genes and chromosomes, which are basic hereditary units. initiate and guide the construction of complex sugars. are made up of three bases: adenine, cytosine, and factor. are the messenger molecules of RNA."
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Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake
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Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion
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Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.
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During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.
Answers: 1
"DNA molecules were discovered in the decade after Darwin's death. make up genes and chromosomes, wh...
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