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During a medical investigation, an infan...

During a medical investigation, an infant was found to possess an extra chromosomes 1. Describe the symptoms the child is likely to develop later in the life.

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### Step-by-Step Solution: 1. **Identify the Genetic Condition**: The presence of an extra chromosome 21 indicates a genetic disorder known as Down syndrome, also referred to as Trisomy 21. 2. **Physical Characteristics**: - **Short Stature**: Individuals with Down syndrome typically have a shorter height compared to their peers. - **Small, Round Head**: A distinctive feature is a smaller and rounder head shape. ...
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Karyotype of a child shows trisomy of chromosome number 21. Identify the disorder and state the symptoms which are likely to be exhibited in this case.

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Evaluate the amount of heat produced during a day by a beta^(-) - active Na^(24) preparation of mass m= 1.0 mg . The beta particles are assumed to possess an average kinetic energy equal to 1//3 of the highest possible energy of the given decay. The half-life of Na^(24) is T= 15 hours .

XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-C
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  2. Draw a labelled sectional view of seminiferous tubule of a human male.

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  3. During a medical investigation, an infant was found to possess an extr...

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  4. A number of passengers were severely burnt beyond recognition during a...

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  11. Why do lepidopterans die when they feed on Bt cotton plant? Explain ho...

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  14. (i) Why are grasshopper and Drosophila said to show male heterogamity ...

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  15. In a series of experiments with Streptococcus and mice F. Griffith con...

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  16. (a) How does the Hardy- Weinberg's expression (p^(2) + 2pq + q^(2) = 1...

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  17. Mention the name of the causal organism, symptoms and the mode of tran...

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  18. (i) Mention the property that enables the explants to regenerate into ...

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  20. (i) Name the organism in which the vector shown in inserted to get the...

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