In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1. R-repolarisation of ventricles
2. S-start of systole
3. T-end of diastole
4. P-depolarisation of the atria
Study the pedigree chart given below:
What does it show?
| 1. | Inheritance of a sex-linked inborn error of metabolism |
| 2. | Inheritance of a condition like phenylketonuria as an autosomal recessive trait |
| 3. | The pedigree chart is wrong as this is not possible |
| 4. | Inheritance of a recessive sex-linked disease like haemophilia |
Middle lamella is mainly composed of:
1. hemicellulose
2. muramic acid
3. calcium pectate
4. phosphoglycerides
Somaclones are obtained by:
1. tissue culture
2. plant breeding
3. irradiation
4. genetic engineering
Which one of the following is the correct matching of three items and their grouping category?
| Items | Group | |
| 1. | Malleus, incus cochlea | Ear ossicles |
| 2. | Ilium, ischium, pubis | Coxal bones of pelvic girdle |
| 3. | Actin, myosin rhodopsin | Muscle proteins |
| 4. | Cytosine, uracil thiamine | pyrimidines |
Plasmodesmata are:
| 1. | lignified cemented layers between cells |
| 2. | locomotory structures |
| 3. | membranes connecting the nucleus with plasmalemma |
| 4. | connections between adjacent cells |
Which of the following is a pair of viral diseases?
1. Ringworm, AIDS
2. Common cold, AIDS
3. Dysentery, common cold
4. Typhoid, tuberculosis
Aerobic respiratory pathway is appropriately termed:
1. catabolic
2. parabolic
3. amphibolic
4. anabolic
Which of the following is not used as a biopesticide?
1. Bacillus thuringiensis
2. Trichoderma harzianum
3. Nucleopolyhedrovirus(NPV)
4. Xanthomonas campestris
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