| Question |
Answer |
| genotype |
A organism’s genetic combination |
| dihybrid cross |
fertilization between two organisms to study two different traits. |
| monohybrid cross |
fertilization between two organisms to study one trait. |
| heterozygous |
having non identical alleles for a trait |
| homozygous |
having identical alleles for a trait. |
| phenotype |
outward appearance of an organism |
| probability |
the likelihood a specific event will occur |
| Punnett Square |
A diagram used to predict possible genetic outcomes |
| genotypic ratio |
The ratio of genotypes |
| phenotypic ratio |
the ratio of phenotypes |
| testcross |
when an individual of unknown genotype is crossed with a homozygous recessive. |
| complete dominance |
When a dominant allele masks the recessive. |
| incomplete dominance |
When both alleles have an intermediate amount of expression and neither is strong enough to mask the other |
| codominance |
Neither allele is intermediate-both are expressed at once, like spots. |
Biology Lab Midterm
