Industrial melanism is an example of?
1. Neo Darwinism
2. Natural Selection
3. Mutation
4. Neo Lamarckism
Cell wall is absent in:
1. Nostoc
2. Aspergillus
3. Funaria
4. Mycoplasma
The chitinous exoskeleton of arthropods is formed by the polymerization of?
1. Keratine sulphate and chondroitin sulphate
2. D-glucosamine
3. N-acetyl glucosamine
4. Lipoglycans
Filiform apparatus is a characteristic feature of?
1. Generative cell
2. nucellar embryo
3. aleurone cell
4. synergids
In angiosperms, microsporogenesis and megasporogenesis?
1. Occur in anther
2. Form gametes without further divisions
3. Involve meiosis
4. Occur in ovule
Metagenesis refers to?
1. | The presence of different morphic forms |
2. | Alternation of generation between asexual and sexual phases of an organism |
3. | Occurrence of a drastic change in the form during post-embryonic development |
4. | Presence of a segmented body and parthenogenic mode of reproduction |
Which of the following immunoglobulins constitute the largest percentage in human milk?
1. IgD
2. IgM
3. IgA
4. IgG
Destruction of the anterior horn cells of the spinal cord would result in loss of?
1. Sensory impulses
2. Voluntary motor impulses
3. Commissural impulses
4. Integrating impulses
The cutting of DNA at specific locations became possible with the discovery of?
1. Restriction enzymes
2. Probes
3. Selectable markets
4. ligases
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree:
1. Autosomal dominant
2. X-linked recessive
3. Autosomal recessive
4. X-linked dominant