Fibroblast cells from several different xeroderma pigmentosa patients were cultured, then fused in intergenic complementation studies. Which cell fusions would not result in a hybrid capable of repairing damaged DNA?

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#Question id: 9264

#XL - S Microbiology

In a comparison of birds and mammals, the condition of having four limbs is

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#Question id: 4621

#XL - T Zoology

DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. The most likely explanation for this result is that

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#Question id: 8864

#XL - T Zoology

Corals are most closely related to which group?

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#Question id: 352

#XL - S Microbiology

One mole (mol) of glucose (molecular mass = 180 daltons) is ________.

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#Question id: 11711

#XL - R Botany

The Irish potato famine was caused by an organism that belongs to which group?