Biology questions
20584 published questions with worked solutions.
- Chloroplasts of Spirogyra have
- The alga rich in protein is
- The thallus of Volvox is called
- Identify the alga known for a biological activity called bioluminescence.
- Zygotic meiosis takes place in
- In Spirogyra,
- Which of the following groups of algae do not have eukaryotic organization?
- Chlorophyll-b is not present in
- Zygote of Spirogyra produces four haploid nuclei in which
- Meiosis in Spirogyra, Ulothrix, Chlamydomonas and most of the algae/thallophytes is
- Algae have cell wall made up of
- Identify the alga, which exhibits diplontic life cycle.
- Nostoc fixes dinitrogen in symbiotic association with the following I. Alnus II. [illegible in source] III. Anthoceros IV....
- Which of the following algae are suitable for human consumption?
- The red colour of 'red sea' is due to which of the following blue-green algae?
- Which one formed in Spirogyra is different based on its nucleus?
- Diatoms belong to which class?
- Which green alga shows heterotrichous habit and may have given rise to terrestrial (land) habit?
- Statement 1: Red algae contributes in producing coral reefs. Statement 2: Some red algae secrete and deposit calcium carbonate...
- Carrageenin, a jelly-like substance is obtained from