Select the incorrect match.

Options

A. `{:("Polytene chromosomes ", - , " Oocytes of amphibians "):} `
B. `{:("Submetacentric chromosomes ",-, "L - shaped chromosomes "):} `
C. `{:("Allosomes",-,"Sex chromosoems"):} `
D. `{:("Lampbrush",-,"Diplotene bivalents"):} `

Answer

To solve the question "Select the incorrect match," we will analyze each option provided:

1. **Polytene chromosome - Oocytes of amphibians**:
- Polytene chromosomes are known as giant chromosomes and are primarily found in certain organisms like Drosophila (fruit flies). They are formed due to repeated rounds of DNA replication without cell division. They are not typically found in amphibian oocytes.

2. **Submetacentric chromosomes - L-shaped chromosome**:
- Submetacentric chromosomes have a centromere that is slightly off-center, resulting in one arm being longer than the other. This can create an L-shape appearance, which is a correct match.

3. **Allosome - Sex chromosomes**:
- Allosomes refer to sex chromosomes, which are indeed X and Y chromosomes in humans. This is a correct match.

4. **Lamprush - Diplodene bivalent**:
- Lamprush chromosomes are associated with amphibians and are formed during the diplotene stage of meiosis, appearing as bivalent chromosomes. This is also a correct match.

Based on the analysis, the incorrect match is:

**Answer**: Polytene chromosome - Oocytes of amphibians.

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