Males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals. These rituals involve fighting other males and making stylized movements that attract females. What type of reproductive isolation does this represent?

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#Question id: 12736

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following:

1. Emphysema                                                    i.  Fibroblasts

2. Immune System Disorder                        ii.  HPRT cLesch-Nyhan syndrome                           iv. T and B cells

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#Question id: 12737

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

 Name the technique which is used to detect abnormalities at an early stage.

TLS Online TPP Program

#Question id: 12738

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match  the following:

Column A	Column B
1. Growth Factors	i. GTPase
2. Protein kinases	ii. PDGF
3. G- Proteins	iii. DNA binding protein
4. Nucleus located transcription factors	iv. Serine Kinases

TLS Online TPP Program

#Question id: 12739

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Method used for gene editing and for the development in Gene modifications is known as_______.

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#Question id: 12809

#General Aptitude

The breadth of a rectangular hall is three-fourth of its length. If the area of the floor is 768 sq. m. then the difference between the length and breadth of the hall is:

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#Question id: 12819

#Section 2: General Biology

The length and breadth of a rectangle are increased by 20% and 25% respectively. The increase in the area of the resulting rectangle will be :