Biology

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Across
  1. 7. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
  2. 8. the fundamental units of heredity, passed down from parents to offspring, and determine specific traits
  3. 9. a reproductive cell (ovum or gamete) produced by females
  4. 10. a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus
  5. 12. a reproductive cell of an animal or plant
Down
  1. 1. a change in the DNA sequence of an organism, resulting in a new version of a gene, called an allele
  2. 2. a change in the DNA sequence of an organism, resulting in a new version of a gene, called an allele
  3. 3. membrane-bound organelle within a cell that houses the genetic material
  4. 4. An allele is a variant form of a gene, specifically a different version of a genetic sequence at a particular location on a chromosome
  5. 5. refers to the variety of life on Earth, including genes, species, and ecosystems
  6. 6. a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell
  7. 11. male reproductive cells, produced in the testicles, that are essential for fertilization