Name any two techniques that serve the purpose of early diagnosis of some bacterial/viral human diseases.

Mention the type of allele that expresses itself only in homozygous state in an organism.

Malaria, typhoid, pneumonia and amoebiasis are some of the human infectious diseases. Which ones of these are transmitted through mechanical carriers?

Name the phenomenon and the cell responsible for the development of a new individual without fertilisation as seen in honey bees.

In a dihybrid cross white eyed, yellow bodied female Drosophila crossed with red eyed, brown bodied male Drosophila produced in F2 generation 1.3 percent recombinants and 98.7 percent progeny with parental type combinations. This observation of Morgan deviated from Mendelian F2 phenotypic dihybrid ratio. Explain, giving reasons, Morgan’s observations.