OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I only
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II Only
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I and II only
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I, II and III
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Detailed explanation-1: -The laboratory specialist uses a microscope to examine the size, shape, and number of chromosomes in the cell sample. The stained sample is photographed to show the arrangement of the chromosomes. This is called a karyotype. Certain problems can be identified through the number or arrangement of the chromosomes.
Detailed explanation-2: -Karyotypes can reveal changes in chromosome number associated with aneuploid conditions, such as trisomy 21 (Down syndrome). Careful analysis of karyotypes can also reveal more subtle structural changes, such as chromosomal deletions, duplications, translocations, or inversions.
Detailed explanation-3: -What kind of information is required for karyotype analysis to be used to detect genetic disorders? If there is an abnormal number of chromosomes in the karyotype, then the organism will have a genetic disorder.