Karyotype analysis worksheet for identifying chromosome abnormalities and syndromes.

To solve the problem, we need to analyze each karyotype and determine whether it is normal or abnormal, identify any chromosomal abnormalities, and associate them with known syndromes if applicable. Let's go through each karyotype step by step.

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KARYOTYPE 2

#### Analysis:
1. Number of chromosomes: There are 46 chromosomes in total (23 pairs).
2. Sex of individual: The last pair consists of an X and a Y chromosome, indicating the individual is male.
3. Normality check:
- All chromosomes appear to be paired correctly.
- No visible deletions, duplications, translocations, or other structural abnormalities.
- The number of chromosomes is correct (46).

#### Conclusion:
- Name of Karyotype: Normal Male
- Number of chromosomes: 46
- Sex of individual: Male
- Normal? Yes or no: Yes
- If abnormal, what abnormality?: N/A
- If abnormal, what chromosome pair?: N/A
- If abnormal, what syndrome?: N/A

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KARYOTYPE 3

#### Analysis:
1. Number of chromosomes: There are 45 chromosomes in total.
2. Sex of individual: The last pair consists of an X and a Y chromosome, indicating the individual is male.
3. Normality check:
- One chromosome is missing from a pair (likely chromosome 21, as it appears to be the smallest unpaired chromosome).
- This is indicative of monosomy.

#### Conclusion:
- Name of Karyotype: Monosomy
- Number of chromosomes: 45
- Sex of individual: Male
- Normal? Yes or no: No
- If abnormal, what abnormality?: Monosomy
- If abnormal, what chromosome pair?: Chromosome 21
- If abnormal, what syndrome?: Monosomy 21 (rare and often lethal; not as well-known as Trisomy 21)

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KARYOTYPE 4

#### Analysis:
1. Number of chromosomes: There are 47 chromosomes in total.
2. Sex of individual: The last pair consists of an X and a Y chromosome, indicating the individual is male.
3. Normality check:
- One chromosome appears to be duplicated (likely chromosome 21, as it is visibly larger and duplicated).
- This is indicative of trisomy.

#### Conclusion:
- Name of Karyotype: Trisomy
- Number of chromosomes: 47
- Sex of individual: Male
- Normal? Yes or no: No
- If abnormal, what abnormality?: Trisomy
- If abnormal, what chromosome pair?: Chromosome 21
- If abnormal, what syndrome?: Down Syndrome (Trisomy 21)

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Final Answers:

#### KARYOTYPE 2
- Name of Karyotype: Normal Male
- Number of chromosomes: 46
- Sex of individual: Male
- Normal? Yes or no: Yes
- If abnormal, what abnormality?: N/A
- If abnormal, what chromosome pair?: N/A
- If abnormal, what syndrome?: N/A

#### KARYOTYPE 3
- Name of Karyotype: Monosomy
- Number of chromosomes: 45
- Sex of individual: Male
- Normal? Yes or no: No
- If abnormal, what abnormality?: Monosomy
- If abnormal, what chromosome pair?: Chromosome 21
- If abnormal, what syndrome?: Monosomy 21

#### KARYOTYPE 4
- Name of Karyotype: Trisomy
- Number of chromosomes: 47
- Sex of individual: Male
- Normal? Yes or no: No
- If abnormal, what abnormality?: Trisomy
- If abnormal, what chromosome pair?: Chromosome 21
- If abnormal, what syndrome?: Down Syndrome (Trisomy 21)

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Final Boxed Answers:

\[
\boxed{
\begin{array}{|l|c|}
\hline
\textbf{KARYOTYPE 2} & \\
\hline
\text{Name of Karyotype} & \text{Normal Male} \\
\hline
\text{Number of chromosomes} & 46 \\
\hline
\text{Sex of individual} & \text{Male} \\
\hline
\text{Normal? Yes or no} & \text{Yes} \\
\hline
\text{If abnormal, what abnormality?} & \text{N/A} \\
\hline
\text{If abnormal, what chromosome pair?} & \text{N/A} \\
\hline
\text{If abnormal, what syndrome?} & \text{N/A} \\
\hline
\hline
\textbf{KARYOTYPE 3} & \\
\hline
\text{Name of Karyotype} & \text{Monosomy} \\
\hline
\text{Number of chromosomes} & 45 \\
\hline
\text{Sex of individual} & \text{Male} \\
\hline
\text{Normal? Yes or no} & \text{No} \\
\hline
\text{If abnormal, what abnormality?} & \text{Monosomy} \\
\hline
\text{If abnormal, what chromosome pair?} & \text{Chromosome 21} \\
\hline
\text{If abnormal, what syndrome?} & \text{Monosomy 21} \\
\hline
\hline
\textbf{KARYOTYPE 4} & \\
\hline
\text{Name of Karyotype} & \text{Trisomy} \\
\hline
\text{Number of chromosomes} & 47 \\
\hline
\text{Sex of individual} & \text{Male} \\
\hline
\text{Normal? Yes or no} & \text{No} \\
\hline
\text{If abnormal, what abnormality?} & \text{Trisomy} \\
\hline
\text{If abnormal, what chromosome pair?} & \text{Chromosome 21} \\
\hline
\text{If abnormal, what syndrome?} & \text{Down Syndrome (Trisomy 21)} \\
\hline
\end{array}
}
\]