Botany-CPMT MCQ Question and Answer
Botany-CPMT MCQ Question and Answer
21. Number of chromatids per chromosome complex at metaphase is—
- Two in mitosis and one in meiosis
- Two in mitosis and four in meiosis
- Four in mitosis and two in meiosis
- Two in both mitosis and meiosis
22. The dark staining region in a chromosome is called—
- Euchromatin
- Heterochromatin
- Paracentric
- Pericentric
23. Plastids are not found in—
- Gram positive bacteria
- Gram negative bacteria
- Fungi
- All of the above
24. Bacterial nucleoid consists of—
- One double-stranded DNA
- Two double-stranded DNA
- Two single-stranded DNA
- One single-stranded DNA
25. The number of chromosomes in Pinus pollen grain in 12, the number of chromosomes in the endosperm of its own is—
- 6
- 12
- 24
- 36
26. During protein synthesis in prokaryotes, the initiation of polypeptide chain is induced
by—
by—
- Serine
- Lysine
- Methionine
- Leucine
27. In Oxalis, the flowers open in the morning and close during evening because of—
- Phototropism
- Phototaxis
- Photonasty
- Nyctinasty
28. Conjoint, collateral, open and endarch vascular bundles are found in—
- Dicot root
- Dicot stem
- Monocot root
- Monocot stem
29. Spraying of DDT produces pollution of—
- Air only
- Airal water
- Air and soil
- Air, water and soil