Which of the following statements are true for the phylum-Chordata?
| (a) | In Urochordata, notochord extends from head to tail and is present throughout their life |
| (b) | In Vertebrata, notochord is present during the embryonic period only |
| (c) | Central nervous system is dorsal and hollow |
| (d) | Chordata is divided into 3 sub-phyla : Hemichordata, Tunicata and Cephalochordata |
2. (a) and (b)
3. (b) and (c)
4. (d) and (c)
Match the following columns and select the correct option.
| Column-I | Column-II | ||
| a. | Placenta | (i) | Androgens |
| b. | Zona pellucida | (ii) | Human chronic Gonadotropin |
| c. | Bulbo-urethral glands | (iii) | Layer of the ovum |
| d. | Leydig cells | (iv) | Lubrication of the Penis |
| a | b | c | d | |
| 1. | (i) | (iv) | (ii) | (iii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (ii) | (iv) | (i) | (ii) |
Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
1. High concentration of Progesterone
2. Low concentration of LH
3. Low concentration of FSH
4. High concentration of estrogen
Which statement is wrong for viruses?
| 1. | All are parasites |
| 2. | All of them have helical symmetry |
| 3. | They have the ability to synthesize nucleic acids and proteins |
| 4. | Antibiotics have no effect on them |
From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask:
1. and water vapour at
2. and water vapour at
3. and water vapour at
4. and water vapour at
The specific palindromic sequence which is recognized by EcoRI is:
| 1. | 5' -GGAACC-3' 3'-CCTTGG-5' |
2. | 5'-CTTAAG-3' 3'-GAATTC-5' |
| 3. | 5'-GGATCC-3' 3'-CCTAGG-5' |
4. | 5'-GAATTC-3' 3'-CTTAAG-5' |
Presence of which of the following conditions in urine is indicative of Diabetes mellitus:
1. Uremia and Renal Calculi
2. Ketonuria and Glycosuria
3. Renal Calculi and Hyperglycaemia
4. Uremia and Ketonuria
The QRS complex in a standard ECG represents:
| 1. | Depolarisation of auricles | 2. | Depolarisation of ventricles |
| 3. | Repolarisation of ventricles | 4. | Repolarisation of auricles |
| 1. | Ori site | 2. | Palindromic sequence |
| 3. | Recognition site | 4. | Selectable marker |
The infectious stage of plasmodium that enters the human body is:
| 1. | Sporozoites
|
2. | Female gametocytes
|
| 3. | Male gametocytes
|
4. | Trophozoites |
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