Across
- 1. A special type of cell division of germ cells in sexually-reproducing organisms used to produce the gametes, such as sperm or egg cells
- 4. A mutation in which a part of a chromosome or a sequence of DNA is lost during DNA replication
- 8. One of two or more versions of a gene
- 10. The study of heredity
- 12. Derive genetically from one's parents or ancestors
- 15. The changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations
- 17. A type of grid that can indicate all the possible outcomes of a genetic cross
- 18. Comprised of sugar and phosphate backbone and A,T, C, G base pairs; located in the nucleus of each cell
- 20. A section of DNA that codes for a specific trait
- 23. A compound that is one of the four constituent bases of nucleic acids; it is paired with adenine in double-stranded DNA
- 24. The process in which new organisms are created by combining the genetic information from two individuals of different sexes
- 25. The passing on of genetic information(physical or mental characteristics) from one generation to another
- 28. The complete set of genes or genetic material present in a cell or organism
- 29. A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus
Down
- 2. The expression of dominant alleles results in a blended phenotype
- 3. A compound that is one of the four constituent bases of nucleic acids, it is paired with guanine in double-stranded DNA
- 5. A type of mutation where one base pair is replaced by a different base pair
- 6. A compound that is one of the four constituent bases of nucleic acids, it is paired with cytosine in double-stranded DNA
- 7. A pair of matching alleles
- 8. Involves a single parent, and results in offspring that are genetically identical to each other and to the parent
- 9. The genetic makeup of an organism
- 11. Both dominant alleles are expressed
- 13. A genetically determined characteristic or condition
- 14. Diversity in gene frequencies among individuals or populations
- 16. Discovered the basic principles of heredity
- 17. The physical expression of an organism's traits
- 19. An allele that does not produce a characteristic effect when present with a dominant allele, expressed only when the determining allele is present in the homozygous condition
- 21. A compound that is one of the four constituent bases of nucleic acids, it is paired with thymine in double-stranded DNA
- 22. A pair of genes where one is dominant and one is recessive
- 26. A threadlike structure of DNA coiled around proteins. Found in the nucleus of most living cells and carrying genetic information in the form of genes
- 27. An allele that expresses its phenotypic effect even when heterozygous with a recessive allele