genetics

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Across
  1. 3. a distinguishing quality or characteristic, typically one belonging to a person.
  2. 4. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
  3. 7. the genetic constitution of an individual organism.
  4. 12. the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
  5. 16. a state of confusion.
  6. 18. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
  7. 19. an intermittent and remittent fever caused by a protozoan parasite that invades the red blood cells. The parasite is transmitted by mosquitoes in many tropical and subtropical regions.
  8. 20. relating to or denoting heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents, i.e., when not masked by a dominant characteristic inherited from one parent.
  9. 21. a group of inherited red blood cell disorders.
  10. 22. a condition in which you lack enough healthy red blood cells to carry adequate oxygen to your body's tissues.
  11. 25. having two different alleles of a particular gene or genes.
Down
  1. 1. a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.
  2. 2. the natural coloring matter of animal or plant tissue.
  3. 5. a hereditary disease marked by degeneration of the brain cells and causing chorea and progressive dementia.
  4. 6. In genetics, an organism with two recessive alleles would be referred to as homozygous recessive, while an organism with one dominant allele and one recessive allele would be heterozygous.
  5. 8. the number and visual appearance of the chromosomes in the cell nuclei of an organism or species.
  6. 9. the action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote.
  7. 10. an animal bred from parents of the same breed or variety.
  8. 11. the inability to distinguish certain colors, or (rarely in humans) any colors at all.
  9. 13. a medical condition in which the ability of the blood to clot is severely reduced, causing the sufferer to bleed severely from even a slight injury. The condition is typically caused by a hereditary lack of a coagulation factor, most often factor VIII.
  10. 14. a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.
  11. 15. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
  12. 17. a reproductive cell of an animal or plant.
  13. 23. The presence of two identical alleles at a particular gene locus.
  14. 24. a hereditary disorder affecting the exocrine glands. It causes the production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi and often resulting in respiratory infection.