Chapter 4 genetics vocabulary
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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| multiple alleles | three or more forms of a gene that code for a single trait
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| sex-linked genes | genes on the X or Y chromosome that pass from parent to offspring on a sex chromosome
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| carrier | a person who has one recessive allele for a trait and one dominant allele. The person does not have the trait, but can pass the recessive allele on to his/her offspring
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| pedigree | a chart or "family tree" that tracks which members of a family have a particular trait
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| genetic disorder | an abnormal condition that a person inherits through genes or chromosomes
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| cystic fibrosis | a genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines
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| sickle cell disease | a genetic disorder that affects the blood; the blood cells have an unusual shape which affects the amount of oxygen in the blood
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| hemophilia | a genetic disorder in which a person's blood clots very slowly or not at all
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| Down syndrome | a person's cells have a extra copy of chromosome 21
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| amniocentesis | a procedure used to determine whether the baby will have some genetic disorders; a small amount of fluid that surrounds the baby is removed
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| karyotype | a picture of all the chromosomes in a cell
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| selective breeding | the process of selecting a few organisms with desired traits to serve as parents of the next generation
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| inbreeding | involves crossing two individuals that have identical or similar sets of alleles
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| hybridization | breeders cross two genetically different individuals to have the best traits from both parents
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| clone | an organism that is genetically identical to the organism from which it was produced
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| genetic engineering | genes from one organism are transferred into the DNA of another organism; "gene splicing"
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| gene therapy | involves inserting working copies of a gene directly into the cells of a person with a genetic disorder
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| DNA fingerprinting | using information from a person's DNA for identification
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| Human Genome Project | identifies the DNA sequence of every gene in the human genome
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| genome | all the DNA in one cell of an organism
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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:
Dcoleman
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