Which gas was least abundant in Earthʹs early atmosphere, prior to 2 billion years ago?

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#Question id: 353

#SCPH28 | Zoology

Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

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#Question id: 2102

#I Life Science/ Life Sciences Group – I-V

In which of the following environments would there be the greatest need for osmoregulation?

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#Question id: 3851

#SCPH06 I Botany

Transcription is initiated at sites called:

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#Question id: 773

#SCPH28 | Zoology

Which of the following describes the function of an enzyme known as Dicer?

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#Question id: 13110

#SCPH28 | Zoology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 

You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

 

 

Match the babies up with their actual parents.