Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?
1. Peroxisomes
2. Golgi bodies
3. Polysomes
4. Endoplasmic reticulum
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
1. (c) and (d)
2. (a), (b) and (d)
3. only (d)
4. (a) and (b)
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. |