Which of the following is likely to show the absence of lysosomes?

Options

A. Cyanophyceae
B. Protozoa
C. Anther tapetum
D. Mammalian leucocytes

Answer

To determine which of the following options is likely to show the absence of lysosomes, we can analyze each option provided:

1. **Cyanophyll (Blue-green algae)**: This organism is classified under the kingdom Monera and is known to have lysosomes. Therefore, it is not the correct answer.

2. **Protozoa**: These are single-celled eukaryotic organisms that typically contain lysosomes for digestion and waste removal. Thus, this option is also not correct.

3. **Anther Tapetum**: The anther tapetum is a layer of nutritive tissue found in flowering plants (angiosperms). It is located between the sporogenesis tissue and the anther wall. Since it is a plant tissue and does not have lysosomes, this option is likely to show the absence of lysosomes.

4. **Mammalian Leucocyte (White blood cells)**: These cells are part of the immune system and contain lysosomes that help in digesting pathogens. Therefore, this option is not correct.

Based on the analysis, the correct answer is **Anther Tapetum**, as it is the only option that is likely to show the absence of lysosomes.

### Summary of Steps:
1. Identify each option and its classification.
2. Determine the presence or absence of lysosomes in each option.
3. Conclude that the Anther Tapetum is the correct answer.