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Heredity Test 7th
Science Test
| Question | Answer |
|---|---|
| What is heredity? | The passing of traits from parents to offspring. |
| What is dominant? | Describes the allele that is fully expressed when carried by only one of a pair of homologous chromosomes. |
| What is recessive? | Describes an allele that is expressed only when no dominant allele is present in an individual. |
| What is incomplete dominance? | A condition in which two alleles are expressed such that the phenotype of a heterozygous individual is an intermediate phenotype of the two homologous parent; mix or blend. |
| What is codominance? | A condition in which two alleles are expressed such that the phenotype of heterozygous individual is a combination of the phenotype of the two homozygous parents; shows both traits. |
| What does homozygous mean? | Having two of the same alleles for a single trait. |
| What does heterozygous mean? | Having two different alleles for a single trait. |
| What are homologous chromosomes? | Chromosomes with the same structure and genes for the same traits. |
| Purebred brown (BB) horses crossing with purebred white (WW) horses to produce gold-coated palomino (BW) horses is an example of what? | Incomplete Dominance. |
| If a purebred blue fish crossed with a purebred yellow fish and the hybrid offspring were yellow and blue, what situation would that be? | Codominance. |
| The movement of homologous pairs for one trait into daughter cells has nothing to do with the movement of the homologous pairs for other traits. This is an illustration of what? | The Law of Independent Assortment. |
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stacyz
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