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Questions and Answers
Which of the following is classified as an alkaloid?
Which of the following is classified as an alkaloid?
- Adenine
- Anthocyanin
- Codeine (correct)
- Chitin
Which compound is a pigment according to the given classification?
Which compound is a pigment according to the given classification?
- Codeine
- Anthocyanin (correct)
- Chitin
- Adenine
In the given classification, which one is correctly matched as an alga?
In the given classification, which one is correctly matched as an alga?
- Chlamydomonas (correct)
- Selaginella
- Sphagnum
- Cycas
Which of the compounds listed is a purine?
Which of the compounds listed is a purine?
According to the classification provided, which one is a gymnosperm?
According to the classification provided, which one is a gymnosperm?
Which stage of meiosis can last for months or years in the oocytes of some vertebrates?
Which stage of meiosis can last for months or years in the oocytes of some vertebrates?
In the reduction phase, when one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used?
In the reduction phase, when one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used?
In lac operon, which gene codes for the enzyme ẞ-galactosidase?
In lac operon, which gene codes for the enzyme ẞ-galactosidase?
Where does the initiation of lateral roots and vascular cambium during secondary growth take place in cells?
Where does the initiation of lateral roots and vascular cambium during secondary growth take place in cells?
In lac operon, what does the y gene code for?
In lac operon, what does the y gene code for?
Which phase can be characterized by the extended duration in the oocytes of some vertebrates during meiosis?
Which phase can be characterized by the extended duration in the oocytes of some vertebrates during meiosis?
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Study Notes
Alkaloid
- Alkaloids are naturally occurring organic compounds containing nitrogen, often with psychoactive, medicinal, or toxic properties.
Pigment
- Chlorophyll is classified as a pigment, responsible for absorbing light energy during photosynthesis.
Alga
- Spirogyra is correctly matched as an alga.
Purine
- Adenine is a purine, a type of nitrogenous base found in nucleic acids.
Gymnosperm
- Pinus is a gymnosperm, a group of plants with seeds that are not enclosed within a fruit.
Meiosis
- The diplotene stage of meiosis can last for months or years in the oocytes of some vertebrates.
Photosynthesis
- ATP and NADPH, both high energy chemical intermediates generated during the light-dependent reactions of photosynthesis, are used in the reduction phase of the Calvin cycle.
Lac Operon
- LacZ gene codes for the enzyme β-galactosidase in the lac operon.
Secondary Growth
- Initiation of lateral roots and vascular cambium during secondary growth takes place in the pericycle layer of the vascular cylinder.
Lac Operon
- LacY gene codes for lactose permease, a protein involved in the transport of lactose into the cell in the lac operon.
Meiosis
- Diplotene is the stage in meiosis that can last for an extended duration in the oocytes of some vertebrates.
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