What may have occurred to prevent species that are of the same grade from also belonging to the same clade?

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#Question id: 949

#SCPH05 I Biotechnology

Nitric oxide is produced from which reaction?

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#Question id: 18007

#SCPH28 | Zoology

The following geological eras mark the advent of important events in the history of earth- origin of first vertebrates armored fishes, origin of First reptiles, origin of first dinosaurs;

a) Triassic b) Pennsylvanian

c) Ordovician d) Cambrian

Identify the correct match of the events with the geological era;

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#Question id: 17655

#SCPH01 Biochemistry

In DNA isolation, for protein free solution what will be the ratio at  nm

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#Question id: 5029

#SCPH28 | Zoology

Which of the following was the least likely factor causing the Cambrian explosion?

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#Question id: 4321

#SCPH05 I Biotechnology

A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in which type(s) of cancer?