Genetics Lesson
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
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| Heredity | The passing of traits from parent to offspring.
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| DNA - Deoxyribonucleic Acid | The genetic material of all organisms; made up of two twisted strands of sugar-phosphate molecules and nitrogen bases.
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| RNA - Ribonucleic Acid | Carries codes for making proteins from the nucleus to the ribosomes.
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| Gene | Section of DNA on a chromosome that contains instructions for making specific proteins.
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| Mutation | Any permanent change in a gene or chromosome of a cell.
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| Allele | An alternate form that a gene may have for a single trait.
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| Multiple allele | More than two alleles that combine to determine a certain characteristic.
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| Genetics | The study of how traits are inherited.
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| Hybrid | An offspring that was given different genetic information for a trait from each parent.
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| Purebred | An organism that produces the same traits generation after generation.
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| Trait | Characteristics of an organism.
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| Dominant Traits | Traits that cover or dominate a weaker form of that trait.
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| Recessive Traits | Traits that are covered or dominated by a stronger form of that trait and seems to disappear.
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| Punnett Square | A tool used to predict the probability of certain traits in offspring.
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| Pedigree | A visual tool used for following a trait through generations of a family.
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| Recombinant DNA | A segment of DNA that is used to create medications such as insulin.
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| Genetic Engineering | Biological and chemical methods to change the arrangement of a gene's DNA to improve crops, create medicine and change how cells perform their normal functions.
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| Gene Therapy | A normal allele is placed in a virus to stop the virus from harming the organism.
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| Genotype | An organism's genetic make-up.
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| Phenotype | An organism's physical appearance and behavior. The way it looks and acts.
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| Homozygous | Describes an organism with two alleles that are the same for a trait.
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| Heterozygous | Describes an organism with two alleles that are different for a trait.
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| Incomplete Dominance | Production of a phenotype that is between the two homozygous parents.
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| Polygenic inheritance | Occurs when a group of gene pairs act together and produces a specific trait.
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| Sex Chromosomes | Chromosomes that determine the sex/gender of an organism.
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| Sex-linked Gene | An allele inherited on the sex chromosome that can cause human genetic disorders such as color blindness or hemophilia.
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| Watson & Crick | Made a 3-D model of the DNA molecule.
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| Franklin | Proved that the large spiral in the DNA molecule is actually two small spirals. (double helix)
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| Mendel | The first to trace a trait through several generations using pea plants. Father of Genetics.
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| Chromosomes | Rod shaped structures that include traits/genes that are copied and pass from cell to cell.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
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:
tagrimes
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