Biology, 03.09.2019 20:10 gudtavosanchez19
Astudent views a micrograph of a cell. she observes a membrane-bound organelle with stacked cisternae, some of which appear to form membrane vesicles that travel to another area of the cell. the student is likely viewing a
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Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
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Biology, 21.06.2019 20:20
2. what process do mrna and trna work together to complete? (3 points)
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Biology, 22.06.2019 10:30
Which of the following is a true statement? question 8 options: populations can't evolve, only individual organisms. individuals have adaptations that can change over time. individuals have traits that may or may not make them successful at reproduction. individuals evolve to have adaptations.
Answers: 1
Biology, 22.06.2019 10:30
Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.
Answers: 1
Astudent views a micrograph of a cell. she observes a membrane-bound organelle with stacked cisterna...
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