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The symptoms of a genetic order are shor...

The symptoms of a genetic order are short- statured with a small round head , furrowed tongue and partially open mouth. Such a genetic disorder is characterized by the presence of an extra chromosome number ………..

A

20

B

21

C

17

D

23

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the genetic disorder characterized by specific symptoms, we can follow these steps: ### Step 1: Identify the Symptoms The symptoms provided in the question are: - Short stature - Small round head - Furrowed tongue - Partially open mouth ### Step 2: Recognize the Disorder Based on the symptoms listed, we can recognize that they are characteristic of Down syndrome. This genetic disorder is typically associated with distinct physical features and developmental challenges. ### Step 3: Determine the Chromosomal Abnormality Down syndrome is caused by a chromosomal abnormality where there is an extra copy of chromosome 21. This condition is also referred to as trisomy 21. ### Step 4: Conclude the Answer Thus, the genetic disorder described in the question is characterized by the presence of an extra chromosome number 21. ### Final Answer The genetic disorder is characterized by the presence of an extra chromosome number **21**. ---
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