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Download GENETICS VOCABULARY STUDY GUIDE Chapter 2 – section 3 1
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GENETICS VOCABULARY STUDY GUIDE Chapter 2 – section 3 1. Cell cycle 2. Chromosome 3. Chromatin 4. Cytokinesis 5. Interphase 6. Mitosis 7. Replication Chapter 3 – Sections 1-4 8. Alleles 9. Codominance 10. Dominant allele 11. Fertilization 12. Gene Chapter 2 – section 3 1. The regular sequence of growth and division that cells undergo. 2. A doubled rod of condensed chromatin, contains DNA that carries genetic information. 3. Single rod of uncondensed genetic information that carries DNA before it is duplicated. 4. The final stage of the cell cycle, in which the cell’s cytoplasm divides, distributing the organelles into each of the two daughter cells. 5. The stage of the cell cycle that takes place before cell division occurs. 6. The stage of the cell cycle during which the cell’s nucleus divides into two new nuclei and one copy of the DNA is distributed into each new identical daughter cell. 7. The process by which a cell makes a copy of the DNA in it’s nucleus. Chapter 3 – Sections 1-4 8. The different forms of a gene. 9. A condition in which neither of two alleles of a gene is dominant or recessive. 10. An allele whose trait always shows up in the organism when the allele is present. 11. The process in which an egg cell and a sperm cell join to form a new organism. 12. The set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait. 13. Genetics 14. Genotype 15. Heredity 16. Heterozygous 17. Homozygous 18. Hybrid 20. Messenger RNA 21. Phenotype 22. Probability 23. Punnett square 24. Purebred 25. Recessive allele 26. Trait 27. Transfer RNA 15. The passing of traits from parents to offspring. 16. Having two different alleles for a trait. 17. Having two identical alleles for a trait. 18. An organism that has two different alleles for a trait. 19. The process that occurs in the formation of sex cells (sperm and egg), also called gametes, by which the number of chromosomes is reduced by half. 20. RNA that copies the coded message from DNA in the nucleus and carries the message into the cytoplasm. 14. An organism’s genetic makeup, or allele combinations. 19. Meiosis 13. The scientific study of heredity. 21. An organism’s physical appearance, or visible traits. 22. A number that describes how likely it is that an event will occur. 23. A chart that shows all the possible combinations of alleles that can result from a genetic cross. 24. The offspring of many generations that have the same traits. 25. An allele that is masked when a dominant allele is present. 26. A characteristic that an organism can pass on to its offspring through its genes. 27. RNA in the cytoplasm that carries an amino acid to the ribosome and adds it to the growing protein chain. 28. DNA 28. The genetic material that carries information about an organism and is passed from parent to offspring.