What reads the RNA bases three at the time to manufacture cell proteins?
d. ribosomes
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5
White blood cells, or ____________, are parts of the blood that defend the body against disease.
leukocytes
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During ______, the chromosomes are pulled to opposite ends of the cell.
anaphase
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5
A gene that codes for a protein is__________ as an RNA molecule.
transcribed
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thief
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magnet
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gift
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lifesaver
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15
During _______, the duplicated chromosomes are line up in the middle of the cell.
metaphase
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heart
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fairy
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thief
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15
How does your skin help your body respond to changes in temperature?
The skin react to hot and cold. In cold weather shivering occurs and hairs stand on end. In warm weather evaporation of sweat from the skin helps cool the body.
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5
The process of building ____________ begins with information in a gene.
protein
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The four ____________ in DNA can be arranged in different ways.
nucleotides
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Which of the following are parts of a DNA molecule? a. sugar molecules, base pairs, phosphate groups b. amino acids, base pairs, sugar molecules b. sugar molecules, phosphate groups, amino acid d. base pairs, protein, white
a. sugar molecules, base pairs, phosphate groups
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5
What may be produced when immune cells release chemicals in reaction substances such as pollen and dust. a. an allergic reaction c. immune response b. acquired immunity d. leukocytes
a. an allergic reaction
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What is the process by which cells move proteins out of the cell called? a. translation b. secretion c. transcription d. the cell cycle
b. secretion
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The ____________ is a set of events in the life of a cell that leads do cell division.
cell cycle
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When are chromosomes duplicated? a. anaphase b. cytokinesis c. telophase d. interphase