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Apologia Biology M8
Vocabulary for Module 8 Exploring Creation with Biology
| Question | Answer |
|---|---|
| True breeding | If an organism has a certain characteristic that is always passed on to its offspring, we say that this organism bred true with respect to that characteristic. (228) |
| Allele (uh leel') | One of a pair of genes that occupies the same position on homologous chromosomes (233) |
| Genotype (jee' nuh tipe) | Two-letter set that represents the alleles an organism possesses for a certain trait (234) |
| Phenotype (fee' nuh tipe) | The observable expression of an organism's genes (234) |
| Homozygous (ho muh zy' gus) genotype | A genotype in which both alleles are identical (234) |
| Heterozygous (het uh roh zy' gus) genotype | A genotype with two different alleles (234) |
| Dominant allele | An allele that will determine phenotype if just one is present in the genotype (234) |
| Recessive allele | An allele that will not determine the phenotype unless the genotype is homozygous in that allele (234) |
| Mendel’s Principles of Genetics (using updated terminology)Part 1 of 2 | 1.)The trait of an organism are determined by its genes 2.) Each organism has two alleles that make up the genotype for a given trait |
| Mendel’s Principles of Genetics (using updated terminology) Part 2 of 2 | 3.) In sexual reproduction, each parent contributes ONLY ONE of its alleles to its offspring 4.) In each genotype, there is a dominant allele. If it exists in an organism, the phenotype is determined by that allele(235) |
| Pedigree | A diagram that follows a particular phenotype through several generations (238) |
| Monohybrid cross | A cross between two individuals, concentrating on only one definable trait (242) |
| Dihybrid cross | A cross between two individuals, concentrating on two definable traits (242) |
| Autosomes | Chromosomes that do not determine the sex of an individual (247) |
| Sex chromosomes | Chromosomes that determine the sex of an individual (247) |
| Antigen | A protein that, when introduced in the blood, triggers the productions of an antibody (251) |
| Autosomal inheritance | Inheritance of a genetic trait not on a sex chromosome (253) |
| Genetic disease carrier | A person who is heterozygous in a recessive genetic disorder (253) |
Created by:
ngio64
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