Multiple Choice QuestionsWhich one of the following is not applicable to RNA?
Complementary base pairing
5, phosphoryl and 3' hydroxyl ends
Heterocyclic nitrogenous bases
Heterocyclic nitrogenous bases
D.
Heterocyclic nitrogenous bases
Chargaff's Rule is not applicable to RNA. He is the generalisations formulated about DNA structure. The rule states that DNA from any cell of all organisms should have a 1:1 ratio (base pair rule) of pyrimidine and purine bases, i.e. the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. Further complementary base pairing is sometimes, visible is RNA as well (in doubled stranded RNAs of viruses) hence option (a) is not taken into consideration.
A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is
Gamete inseminated fallopian transfer
Gamete intra fallopian transfer
Gamete internal fertilization and transfer
Gamete internal fertilization and transfer
The wings of a bird and the wings of an insect are:
homologous structures and represent divergent evolution
analogous structures and represent convergent evolution
phylogenetic structures and represent divergent evolution
phylogenetic structures and represent divergent evolution
Golden rice is a genetically modified crop plant where the incorporated gene i's meant for
Vitamin B
Vitamin C
Omega 3
Omega 3
Outbreeding is an important strategy of animal husbandry because it
helps in accumulation of superior genes
is useful in producing purelines of animals.
is useful in overcoming inbreeding depression.
is useful in overcoming inbreeding depression.
An association of individuals of different species living in the same habital and having functional interactions is
Ecological niche
Biotic community
Ecosystem
Ecosystem
In which of the following both pairs have correct combination?
| Gaseous nutrient cycle | Carbon and Nitrogen |
| Sedimentary nutrient cycle | Sulphur and Phosphorus |
| Gaseous nutrient cycle | Carbon and Sulphur |
| Sedimentary nutrient cycle | Nitrogen and Phosphorus |
| Gaseous nutrient cycle | Nitrogen and Sulphur |
| Sedimentary nutrient cycle | Carbon and Phosphorus |
| Gaseous nutrient cycle | Nitrogen and Sulphur |
| Sedimentary nutrient cycle | Carbon and Phosphorus |
Identify the correct order of organisation of genetic material from largest to smallest
Chromosome, gene, genome, nucleotide
Genome, chromosome, nucleotide, gene
Genome, chromosome, gene, nucleotide
Genome, chromosome, gene, nucleotide
Industrial melanism is an example of
Neo Darwinism
Natural selection
Mutation
Mutation
Filiform apparatus is characteristic feature of
Generative cell
Nucellar embryo
Aleurone cell
Aleurone cell
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