Genetics and Heredity

Edit Answers
12345678910111213141516171819
Across
  1. 2. chromosomes,A pair of matching chromosomes in an organism, with one being inherited from each parent.
  2. 4. the genetic constitution of an individual organism.
  3. 10. the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.
  4. 11. a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
  5. 12. having two identical alleles of a particular gene or genes.
  6. 13. the process of making an RNA copy of a gene's DNA sequence
  7. 15. a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
  8. 17. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
  9. 18. are made up of sequences of DNA and are arranged, one after another, at specific locations on chromosomes in the nucleus of cells.
  10. 19. genetics,refers to certain patterns of how traits are passed from parents to offspring.
Down
  1. 1. 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. 3. having two different alleles of a particular gene or genes.
  3. 5. the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis.
  4. 6. made up of one or more long, folded chains of amino acids (each called a polypeptide), whose sequences are determined by the DNA sequence of the protein-encoding gene.
  5. 7. most important, powerful, or influential.
  6. 8. a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.
  7. 9. a reproductive cell of an animal or plant.
  8. 14. 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. 16. a person's child or children.
  10. 18. is an organism whose DNA has been modified in the laboratory in order to favour the expression of desired physiological traits or the production of desired biological products.