The roots that originate from the base of the stem are:
1. Primary roots
2. Prop roots
3. Lateral roots
4. Fibrous roots
The ovary is half inferior in:
1. Mustard
2. Sunflower
3. Plum
4. Brinjal
Match the following columns and select the correct option.
Column I | Column-II | ||
(a) | Floating Ribs | (i) | Located between second and seventh ribs |
(b) | Acromion | (ii) | Head of the Humerus |
(c) | Scapula | (iii) | Clavicle |
(d) | Glenoid cavity | (iv) | Do not connect with the sternum |
(a) | (b) | (c) | (d) | |
1. | (i) | (iii) | (ii) | (iv) |
2. | (iii) | (ii) | (iv) | (i) |
3. | (iv) | (iii) | (i) | (ii) |
4. | (iv) | (ii) | (i) | (iii) |
If the head of the cockroach is removed, it may live for a few days because:
1. | The cockroach does not have a nervous system |
2. | The head holds a small proportion of the nervous system while the rest is situated along the ventral part of its body |
3. | The head holds 1/3rd of the nervous system while the rest is situated along the dorsal part of its body |
4. | The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen |
Identify the incorrect statement.
1. | Sapwood is involved in conduction of water and minerals from roots to leaves. |
2. | Sapwood is the innermost secondary xylem and is lighter in colour |
3. | Due to deposition of tannins, resins, oils etc., heartwood is dark in colour. |
4. | Heart wood does not conduct water but gives mechanical support. |
Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to:
The number of substrate level of phosphorylations in one turn of citric acid cycle is:
1. | One | 2. | Two |
3. | Three | 4. | Four |
Identify the wrong statement with regards to restriction enzyme:
1. | They cut the strength at palindromic sites. |
2. | They are useful in genetic engineering. |
3. | Sticky ends can be joined by using DNA ligases. |
4. | Each restriction enzyme functions by inspecting the length of a DNA sequence. |
Flippers of Penguins and Dolphins are examples of:
1. | Convergent evolution | 2. | Industrial melanism |
3. | Natural selection | 4. | Adaptive radiation |
Identify the wrong statement with reference to transport of oxygen:
1. | Partial pressure of CO2 can interfere with O2 binding with haemoglobin. |
2. | Higher H+ concentration in alveoli favours the formation of oxyhaemoglobin. |
3. | Low pCO2 in alveoli favours the formation of oxyhaemoglobin. |
4. | Binding of oxygen with haemoglobin is mainly related to partial pressure of O2. |