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Ch 3 - Genetics Voc
All Ch. 3 Genetic Vocabulary
| Question | Answer |
|---|---|
| Different forms of a gene and is identified by upper and lower case letters such as T and t | Alleles |
| An allele whose trait always shows up in organisms when the allele is present and is identified as a capital letter such as T | Dominant Allele |
| A segment or particular part of DNA found on a chromosome that codes for a specific trait | Gene |
| The passing of traits, such as eye and hair color, from parents to offspring | Heredity |
| An organism that has two different alleles or is heterozygous for a particular trait | Hybrid |
| An organism that has identical alleles or is homozygous for a particular trait and always produces the same trait in the offspring | Purebred |
| An allele that is masked when paired with a dominant allele and is identified with lower case letters such as t | Recessive Allele |
| Characteristics, such as skin color and eye shape, that an organism can pass on to its offspring through its genes | Trait |
| An allele combination or genotype which results in neither allele being dominant or recessive; both traits show in the offspring; identified with two different capital letters such as RW | Codominance |
| Classification for having two different alleles for a specific trait such as Tt | Heterozygous |
| Classification for having two identical alleles for a specific trait such as tt or TT | Homozygous |
| An organism's genetic makeup or allele combinations and identified with letter combinations such as TT, Tt, and tt | Genotype |
| An organism's physical appearance or visible traits (the way it looks), such as hair color or height | Phenotype |
| A chart used by scientists to show all the possible allele combinations that can result from a genetic cross | Punnett Square |
| The scientific study of heredity | Genetics |
| The likelihood or odds that a particular event or outcome will occur | Probability |
| A male sex cell | Sperm |
| A female sex cell | Egg |
| "Genes are carried from parents to their offsprings on chromosomes" | Chromosome Theory of Inheritance |
| Cell division that occurs in sex cells, such as eggs and sperms, that reduces the number of chromosomes in half when compared to the parent cell | Meiosis |
| Adenine, Thymine, Guanine, Cytosine | Nitrogen Bases |
| Nitrogen base that pairs with Adenine | Thymine |
| Nigtrogen base that pairs with Guanine | Cytosine |
| A change in a gene or chromosome which results in a different alignment of nitrogen bases than on the parent chromosome | Mutation |
Created by:
vplatto
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