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

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#Question id: 18083

#Unit 8. Inheritance Biology

The interaction of selection and inbreeding in determining the incidence of autosomal recessive diseases. Consider a gene in which recessive mutations occur at a rate of 10^-5. Assume a selective disadvantage S of 0.4 in homozygotes for the recessive allele. Would q be expected to rise, fall, or remain unchanged during the first 10 generations after the cessation of inbreeding, Briefly justify your answer. What numerical value would q approach after thousands of generations with no inbreeding?

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#Question id: 28839

#Unit 2. Cellular Organization

Which of the following nucleates assembly of a microtubule by forming a template corresponding to the (−) end?

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#Question id: 32583

#Unit 2. Cellular Organization

Which of the following C-terminal kinesin generally travel in the opposite direction from the majority of kinesins?? 

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#Question id: 17218

#Unit 7. System Physiology – Animal

Which of the following promotes fluid retention which increases BP?

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#Question id: 18605

#Unit 13. Methods in Biology

Thermal modulation are used in PCR for the functions of