Genetics Test Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Heredity | Is the passing of physical characteristics from parents to offspring
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| Trait | A characteristics that an organism can pass on to its offspring through its genes, such as stem height or seed color
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| Genetics | The scientific study of heredity
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| Fertilization | The process in which an egg cell and a sperm cell join to form a new organism
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| Purebred | An offspring of many generations that have the same trait
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| Gene | A segment of DNA on a chromosome that control a trait
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| Alleles | Are the different forms of a gene
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| Dominant Allele | Is one whose trait always shows up in the organisms when the allele is present.
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| Recessive Allele | Is hidden whenever the dominant allele is present
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| Punnet Square | Is a chart that shows all the possible outcomes of a genetic cross, and to determine the possibility of a particular outcome
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| Phenotype | An organism's physical appearance, or visible traits
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| Genotype | An organism's genetic makeup, or allele combination
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| Homozygous | An organism that has two identical alleles for a trait
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| Heterozygous | An organism that has to different alleles
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| Codominance | A condition in which neither of two alleles of a gene is dominant or recessive. Both alleles are expressed in the offspring.
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| Meiosis | Is the process by which chromosome pairs separate and are distributed to two different cells. The resulting sex cells have half the number of chromosomes as other cells in the organism.
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| Mutation | A change in a gene or chromosome
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| SS or Ss or ss | Genotype
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| Smooth pods or Pinched pods | Phenotype
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| Some alleles are _____________, while other alleles are _________________. | dominant, recessive
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| An organism's traits are controlled by the ______________ inherited from its parents. | Alleles
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| Probability | Is the likelihood that a particular event will occur
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| Hybrid | An organism that has two different alleles for a trait (Heterozygous)
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| True or False? The allele that each parent will pass on to its offspring is based on probability. | True
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| True or False? In codominance, the alleles are both dominant and recessive . | False (it is neither)
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| Chromosome Theory of Inheritance | States that genes are carried from parents to their offspring on chromosomes.
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| Chromosomes | contains DNA that carries genetic information.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Achenry45
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