Science Ch. 3
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 | The passing of physical characteristics from parents to offspring.
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| Trait | Each different form of a characteristic.
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| Genetics | The scientific study of heredity.
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| Fertilization | The process in which egg and sperm join.
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| Purebred | The offspring of many generations that have the same trait.
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| Hybrid | An organism that has two different alleles for a trait.
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| Alleles | The different forms of a gene.
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| Dominant Allele | A trait that always shows up when the allele is present.
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| Recessive Allele | An allele that is always hidden whenever the dominant allele is present.
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| Probability | The number that describes how likely it is that an event will occur.
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| Punnett Square | A chart that shows all possible combinations of alleles that can result from a genetic cross.
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| Phenotype | An organism's physical traits.
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| Genotype | An organism’s genetic material, or allele combinations.
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| Heterozygous | An organism that has two different alleles for a trait.
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| Homozygous | An organism that has two identical alleles for a trait.
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| Codominance | When the alleles are neither recessive or dominant. As a result, both alleles are expressed in the offspring.
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| Meiosis (and how it’s different from mitosis) | The process by which the number of chromosomes is reduced by half to form sex cells. Mitosis repairs damage and replaces worn out cell parts. It also helps with growth because it controls the production of body cells. Mitosis makes identical cells. Meiosi
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| Messenger RNA | It copies the coded message from the DNA in the nucleus, and carries the message to the ribosome in the cytoplasm.
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| Transfer RNA | It carries amino acids to the ribosome and adds them to the growing protein.
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| Protein Synthesis | During this process, the cell uses information from a gene on a chromosome to produce a specific protein.
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| Mutations | When an allele is added, deleted, or substituted, resulting in an abnormality in a singular gene or a whole chromosome.
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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.
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.
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:
katekenney
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