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Which statement is true, with regard to the theory of evolution? A) Evolution of an entire species can often occur in a single individual organism. B) The theory of evolution is proof that evolution occurs exactly as described, and cannot be revised. C) The theory of evolution offers an explanation of how competition for resources may lead a species to change. D) DNA sequences and protein similarities are the only reliable way to determine that an organism evolved from another.

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Which of the following would be found in DNA sequences but not in mRNA sequences? a) transcription start sites b) translation start sites c) open reading frames d) exons e) All of the answer options would be found in DNA sequences but not in mRNA sequences.

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The offspring of two parents obtains a single copy of every gene from each parent True or False

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The flow of carbon in an ecosystem is similar to the flow of energy in an ecosystem True or False

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HIV uses which of the following processes to synthesize a DNA strand using its RNA genome as a template? transcription translation reverse translation conjugation reverse transcription

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The ability of a vertebrate to generate millions of different lymphocytes is a result of its dna undergoing what process?

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Dermatomes are skin segments that relate to sensory innervation regions of the spinal nerves. True False

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The skin has five layers of cells. true false

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Which two scientists were credited with building the first three-dimensional model of dna?

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Sweat on the surface of the skin can cause body odor. true false

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Skin does not have to be kept clean and moist to look and feel good. true false

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What are two reasons why a scientist might want to study the DNA of strawberries?

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Which segment of DNA contains the information necessary to produce a protein?

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The table shows the relative size of the genomes, number of genes, and number of chromosomes for a variety of different organisms. Based on what we know regarding the genetic code of all living things, how does the genetic code of a eukaryote organism compare to that of a prokaryote organism? A) Prokaryote organisms have much simpler DNA, containing fewer than four nitrogen bases. B) Eukaryote organisms have a larger genome containing a more complex set of nitrogen bases. C) Both types of organisms contain exactly the same four nitrogen bases, but in different sequences and numbers. D) Both types of organisms contain exactly the same four nitrogen bases, in the exact sequences, but in varying numbers.

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Name 2 other organelles besides the mitochondria that contain DNA and have a double membrane

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Please help with this question! Everyone, but identical twins, has different DNA, how could this fact be useful to scientists and pther professions?

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A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how the cell could be classified? The cell is prokaryotic because it has DNA. The cell is prokaryotic because it has cytoplasm. The cell is eukaryotic because it has a cell membrane. The cell is eukaryotic because it has chloroplasts.

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A gene for disease resistance in fir trees is transferred to pine trees using modern DNA technology. How might this be economically helpful to tree farmers?

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The purpose of the coenzymes nad and fad is to carry blank ions to the stage of respiration called blank

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Environmental factors are capable of changing ones dna and can cause uncontrolled cell growth that often results in cancer what are are these factors called

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During DNA replication in a human cell, 6 million bases must be paired properly. which characteristic of DNA best allows for high levels of accuracy during this process? A: ion channels B: base pairing according to certain rules C: single-helix shape D: presence of ribose in the backbone

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Flooding can occur as a result of an earthquake. true or false

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Checkpoints occur between the stages of the cell cycle. If a cell does not meet certain criteria at the end of a stage, it will not move to the next stage. Which of these occurs just before the cell enters the G2 stage of the cell cycle. F / The nuclear membrane disintegrates. G / DNA replicates. H / Centrioles form. J / The nucleolus divides.

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A DNA strand has the sequence ATCGGC. Which is the complementary strand of DNA? A) UAGCCG. B) GCTAAT. C) TAGCCG. D) UGTCCT

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Which statement is most likely to apply to a cell that has DNA within its cytoplasm? A) It lacks ribosomes. B) It has membrane-bound organelles. C) It is multicellular. D) It performs all functions for the organism.

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According to Chargaff’s rule, base pairing in DNA should resemble which of the following? A = T; C = G A = C; T = G A = G; T = C A = U; C = G

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What is the importance of repair enzymes for the identification of errors during DNA replication

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During a strenuous soccer game, a student is sweating a lot. Which of these would help maintain her water balance? A. increasing breathing and heart rate B. refraining from drinking any water C. wiping off perspiration with a towel D. drinking more water or other fluids (——[ I think D ]

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Dna is packaged in the nucleus of the cell in a structure called ________________ in which the dna coils around proteins called histones many times over. when cell replication occurs, the dna condenses even more into a ___________________.

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In a real cell, what does the dna molecule do before it unzips?

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