The wings of a bird and the wings of an insect are:
1.
Homologous structures, represent divergent evolution
2.
Analogous structures, represent convergent evolution
3.
Phylogenetic structures, represent divergent evolution
4.
Homologous structures, represent convergent evolution
Golden rice is a genetically modified crop plant where the incorporated gene is meant for the biosynthesis of:
| 1. | Vitamin-B | 2. | Vitamin-C |
| 3. | Omega 3 | 4. | Vitamin-A |
Outbreeding is an important strategy in animal husbandry because it:
| 1. | helps in the accumulation of superior genes. |
| 2. | is useful in producing pure lines of animals. |
| 3. | is useful in overcoming inbreeding depression. |
| 4. | exposes harmful recessive genes that are eliminated by selection. |
Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?
1. Melanocyte-stimulating hormone
2. Antidiuretic hormone
3. Luteinizing hormone
4. Prolactin
An association of individuals of different species living in the same habitat and having functional interactions is known as:
| 1. | Ecological niche | 2. | Biotic community |
| 3. | Ecosystem | 4. | Population |
In which of the following, do both pairs have the correct combination?
| 1. | Gaseous nutrient cycle Sedimentary nutrient cycle |
Carbon and nitrogen Sulphur and phosphorous |
| 2. | Gaseous nutrient cycle Sedimentary nutrient cycle |
Carbon and sulphur Nitrogen and phosphorus |
| 3. | Gaseous nutrient cycle Sedimentary nutrient cycle |
Nitrogen and sulphur Carbon and phosphorous |
| 4. | Gaseous nutrient cycle Sedimentary nutrient cycle |
Sulphur and phosphorous Carbon and nitrogen |
Identify the correct order of organization of genetic material from largest to smallest.
1. Chromosome, gene, genome, nucleotide
2. Genome, chromosome, nucleotide, gene
3. Genome, chromosome, gene, nucleotide
4. Chromosome, genome, nucleotide, gene
A jawless fish, which lays eggs in freshwater and whose ammocoetes larvae after metamorphosis return to the ocean is?
1. Eptratretus
2. Myxine
3. Neomyxine
4. Petromyzon
Industrial melanism is an example of?
1. Neo Darwinism
2. Natural Selection
3. Mutation
4. Neo Lamarckism
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