Biology: Chapter 12

4. Genetic make up
5. a cross in which the two parents are switched
9. This occurs when alleles have approx. equal effects in individuals, making the alleles equally detectable in heterozygotes polygenic inheritance/this occurs when several to many different genes contribute to the same character
11. An individual that is heterozygote is said to be
13. An individual that is said to be homozygote
14. if an individual's pair of genes concepts of different alleles, one allele is dominant over the other
15. pollen that comes from a different plant is called
16. true breeding individual with both alleles of a gene. Produces only one type of gamete: it contains one copy of that allele
19. The adult plants carry a pair of factors that govern the inheritance of each trait
20. Mendel chose pea plants that were known to be
21. An individual with two different alleles of a gene
22. Single genes affect more than one character of an organism

1. What is the first generation of offspring from a cross between two true-breeding parents
2. a specific heritable attribute or property of an organism
3. When one allele of a gene is not completely dominant over another allele
6. The pairs of alleles that control a character segregate as gametes are formed; half the gametes carry one allele, the other half carry the other allele
7. one of two or more versions of a gene
8. A cross between two individuals that are each heterozygous for the same pair of alleles
10. Particular site on a chromosome at which a gene is located
12. Method of determining the genotypes of offspring and their expected proportions
17. An offspring of parents with different traits
18. what is used in an initial cross between two true-breeding parents
23. refers to appearance