The chances of contracting bird flu from a properly cooked (above 100°C) chicken and egg are:
1. | very high | 2. | high |
3. | moderate | 4. | negligible |
A group of animals that are related by descent and share many similarities is referred to as:
1. | breed | 2. | race |
3. | variety | 4. | species |
Inbreeding is carried out in animal husbandry because it:
1. | increases vigour | 2. | improves the breed |
3. | increases heterozygosity | 4. | increases homozygosity |
Which one of the following is not a fungal disease?
1. | Rust of wheat | 2. | Smut of Bajra |
3. | Black rot of crucifers | 4. | Red rot of sugarcane |
In virus-infected plants, the meristematic tissues in both apical and axillary buds are free of the virus because:
1. | the dividing cells are virus resistant. |
2. | meristems have anti-viral compounds. |
3. | the cell division of meristems is faster than the rate of viral multiplication. |
4. | Viruses cannot multiply within meristem cell(s). |
Fungicides and antibiotics are chemicals that:
1. | enhance yield and disease resistance. |
2. | kill pathogenic fungi and bacteria, respectively. |
3. | kill all pathogenic microbes. |
4. | kill pathogenic bacteria and fungi, respectively. |
Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed:
1. recombinant DNA technology
2. transgenic mechanism
3. mutation breeding
4. gene therapy.
The scientific process by which crop plants are enriched with certain desirable nutrients is called:
1. crop protection
2. breeding
3. bio-fortification
4. bio-remediation.
The term ‘totipotency’ refers to the capacity of a:
1. cell to generate the whole plant
2. bud to generate the whole plant
3. seed to germinate
4. cell to enlarge in size