biology

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Across
  1. 3. - relating to the skull or cramian .
  2. 6. - part of nervous system consisting of sensory receptors received stimuli.
  3. 8. - the basic unit of heredity passed from parent to child.
  4. 9. - the process of copying a segment of DNA into RNA .
  5. 14. - the portion of the brain in the back of the head between the cerebrum and the brain stem.
  6. 19. - a genetic change in which a piece of one chromosome breaks off and attaches to another chromosome.
  7. 21. - having to do with movement of body parts.
  8. 22. - a type of mutation in which one nucleotide is replaced by a different nucleotide.
  9. 27. - the space between the end of a nerve cell.
  10. 28. - membranous true-like projections arising from the body of the neuron.
  11. 30. - a type of cell that receives ang sends messages from the body .
Down
  1. 1. - central trunk of the mamalian brain.
  2. 2. - a neuron that conveys impulses from one neuron to another.
  3. 4. - the process by which a double stranded DNA molecule is copied to produce two identical DNA molecule.
  4. 5. - the genetic code is the set of rules used by living cells to translate information encoded within genetic material.
  5. 7. - a type of genetic change that involves the absence of a segment of DNA.
  6. 10. - a structure found inside the nucleus of a cell.
  7. 11. - a chemical compound that is used to make one of the building blocks of DNA and RNA.
  8. 12. body - the central part of a neuron that includes the nucleus but not the axons ang dendrites.
  9. 13. syndrome- a condition in which a person has an extra chromosome.
  10. 15. - the largest part of the brain.
  11. 16. - any change in the DNA sequence of a cell.
  12. 17. - the long threadline part of a nerve cell which impulses the conducted from the cell body to other cells.
  13. 18. - a state of balance among all the body systems needed for the body to survive and function correctly.
  14. 20. - trinucleotide sequence located at one end to transfer RNA molecule.
  15. 23. - a chromosomal defect in which a segment of the chromosome breaks off and reattaches in the reverse direction.
  16. 24. - a chemical compound that is used to make one of the building blocks of DNA.
  17. 25. - it is a type of purine
  18. 26. - the molecule inside cells that contains the genetic information responsible for the development.
  19. 29. division - the process by which a single parent cell splits to form new cells.