Two atoms with the same atomic number, but different mass numbers are called_________.

Question

  1. Which of the following is not a function of mitosis in humans?
  2. Growth
  3. Repair of wounds
  4. Production of gametes from diploid cells
  5. Replacement of lost or damaged cells
  6. A gamete (cell) carries only one allele for each inherited character because the two alleles separate from each other during gamete production (meiosis). This statement defines
  7. A) Monohybrid cross
  8. B) Law of segregation
  9. C) Genotype
  10. D) Homologous chromosomes
  11. E) All of the above
  12. What is the correct sequence of steps in the scientific method?
  13. Observe a phenomenon
  14. Analyze and interpret data

III. Develop a hypothesis

    1. Share the results with other scientists
    2. Design and perform experiment to test the hypothesis
    3. A) I – II -III -IV – V
    4. B) III – I -V– II –IV
    5. C) V – IV –III – II – I
    6. D) I – III – V– II – IV
    7. E) V – II –I – III -IV
    8. To test a hypothesis about a given variable, experimental and control groups are tested in parallel. Which of the following best explains the dual experiments?
    9. A) In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made.
    10. B) In the control group, a chosen variable is altered in a known way. In the experimental group, that chosen variable is not altered so a comparison can be made.
    11. C) In the experimental group, a chosen variable plus all other variables are altered. In the control group, the chosen variable is altered; however, all other variables are held constant.
    12. D) In the experimental and control groups, two different variables are altered.
    13. E) Experimental and control groups experiments are identical and run in parallel to get repeatable results.
    14. The smallest unit of life is the
    15. A) cell
    16. B) organelle
    17. C) macromolecule
    18. D) atom
    19. You examine a cell under a microscope and you do not see a well defined nucleus. You conclude the cell must a _____________________ cell.
    20. A) prokaryotic
    21. B) eukaryotic
    22. C) plant
    23. D) animal
    24. All of the following are examples of elements except?
    25. A) oxygen
    26. B) water
    27. C) hydrogen
    28. D) carbon
    29. Two atoms with the same atomic number, but different mass numbers are called_________.
  1. A) radioactive
  2. B) isotopes
  3. C) proteins
  4. D) electrons
  5. E) nuclei
  6. Select the element that is not one of the four most common elements in living matter.
  7. A) carbon
  8. B) hydrogen
  9. C) nitrogen
  10. D) oxygen
  11. E) phosphorous
  12. Edward was found to heterozygous (Ss) for the sickle-cell trait. The alleles represented by the letters S and s are
  13. A) on the X and Y chromosomes
  14. B) linked
  15. C) on homologous chromosomes
  16. D) both are present in each of Edward’s sperm cells
  17. E) none of the above
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