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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are changes in an organism's genetic material.
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Mutations
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What is called when a physician analyzes a karyotype made using cells grown from a sample of the chorionic villi.
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Chorionic Villi Sampling
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When a fragment of a chromosomes break off, it can be lost when the cell divides, causing a mutation called a --------.
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Deletion
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When the chromosome fragment attaches to its homologous chromosomemm which will then carry two copies of a certain set of genes, what is it called.
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Duplication
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Sometimes when the fragment reatteches to thre original chromosome in teh reverse orientationm producing a mutation called an ---------.
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inversion
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What is the event called when the fragment may join a nonhomologous chromosomem.
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Translocation
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this syndrome features:A short stature, a round face with upper eyelids theat cover the inner corners of the eyes, and, most sighificantly, varying degrees of mental retardation.
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Down syndrome
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In disjunction, one or more chromosomes may fail to separtate properly, this is called what?
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Nondisjunction
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The oppsite of disjunction
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What is this process called when a physician uses a needle adn syringe to remove a small amount of the fluid from the amnion.
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Amniocentesis
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The human body contains 23 pairs of chromosomes, what are the two copies called.
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Homologous Chromosomes
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When a cell contains two homolougs of each chromosome, it is termed -------.
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Diploid
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(The first two letters mean 2)
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What is a egg and sperm cell called
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Gametes
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A cell contains only one homologue of each chromosome is called what.
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Haploid
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What is a fertilized egg cell in the first cell ofa new individual.
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Zygote
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(the first stage of a baby)
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the condition in which a diploid cell has an wtra chromosomeis called
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Trisomy
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What is teh collecion of chromosome found in an insividual's cells.
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Karyotype
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What is a segment of DNA that transmitsd information from parent to offsping
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Gene
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(its in the chromosomes)
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What is a rod-shaped structure that forms when a single DNA molecule and associated proteins coil tightly before cell division.
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Chromosomes
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(Its a "X" shape)
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What are two copies of chromosomes called.
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Chromatids
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What is the point called where two chromatids are attached by a protein disk.
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Centromere
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