Match the following :
|
(a) |
Lactobacillus |
(i) |
Cheese |
|
(b) |
Saccharomyces cerevisiae |
(ii) |
Curd |
|
(c) |
Aspergillus niger |
(iii) |
Citric Acid |
|
(d) |
Acetobacter aceti |
(iv) |
Bread |
|
(v) |
Acetic acid |
Select the correct option:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (i) | (iii) | (v) |
| 2. | (ii) | (iv) | (v) | (iii) |
| 3. | (ii) | (iv) | (iii) | (v) |
| 4. | (iii) | (iv) | (v) | (i) |
DNA precipitation, out of a mixture of biomolecules, can be achieved by treatment with:
1. Chilled chloroform
2. Isopropanol
3. Chilled ethanol
4. Methanol at room temperature
Thiobacillus is a group of bacteria helpful in carrying out:
1. Denitrification
2. Nitrogen fixation
3. Chemoautotrophic fixation
4. Nitrification
Which of the following statements is not correct?
| 1. | Lysosomes are formed by the process of packaging in the endoplasmic reticulum. |
| 2. | Lysosomes have numerous hydrolytic enzymes |
| 3. | The hydrolytic enzyme of lysosomes are active under acidic pH |
| 4. | Lysosomes are membrane bound structure. |
Select the incorrect statement:
| 1. | Inbreeding helps in the accumulation of superior genes and the elimination of undesirable genes |
| 2. | Inbreeding increases homozygosity |
| 3. | Inbreeding is essential to evolve pure lines in any animal |
| 4. | Inbreeding selects harmful recessive genes that reduce fertility and productivity |
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:
| 1. | Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum |
| 2. | Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum |
| 3. | Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum |
| 4. | Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum |
Consider the following statements:
| A: | A coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group |
| B: | A complete catalytic enzyme with its bound prosthetic group is called apoenzyme |
Select the correct option
1. (A) is false but (B) is true
2. Both (A) and (B) are true
3. (A) is true but (B) is false
4. Both (A) and (B) are false
Which of the statements given below is not true about the formation of Annual Rings in trees?
| 1. | Annual rings are not prominent in trees of temperate regions. |
| 2. | Annual rings are a combination of spring wood and autumn wood produced in a year. |
| 3. | Differential activity of cambium causes light and dark bands of tissue - early and late wood respectively. |
| 4. | Activity of cambium depends upon variation in climate. |
Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?
| 1. | Ovules develop into an embryo sac |
| 2. | Ovary develops into fruit |
| 3. | Zygote develops into an embryo |
| 4. | Central cell develops into endosperm |
Which of the following equipment is essentially required for growing microbes on a large scale for the industrial production of enzymes?
| 1. | Bioreactor | 2. | BOD incubator |
| 3. | Sludge digester | 4. | Industrial oven |
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