Chapter 5
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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allele | the different form of a trait that a gene may have
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phenotype | the way an organism looks or behaves
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genotype | an organism's genetic makeup
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heredity | passing of traits from parents to offspring
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dominant | a trait that can cover up another form of the trait
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Punnett square | a tool used to predict the probability of traits
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recessive | describes a trait that is covered over or hidden
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genetics | study of how traits are inherited through the action of alleles
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polygenic inheritance | occurs when a group of gene pairs acts together to produce a trait, such as human eye color
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heterozygous | describes an organism with different alleles for a trait (example: Tt); also called a hybrid
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homozygous | describes an organism with two alleles that are the same for a trait
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hybrid | an offspring that was given different genetic information for a trait from each parent
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incomplete dominance | production of a phenotype that is intermediate or a blend of two homozygous parents
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genetic engineering | biological and chemical methods to change the arrangement of a gene's DNA
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sex-linked gene | an allele inherited on a sex chromosome that can cause a disorder, such as color blindness
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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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