Ptosis (droopy eyelid) may be inherited as a dominant human trait. Among 30 people who are heterozygous for the ptosis allele, 10 have ptosis and 20 have normal eyelids. What is the penetrance for ptosis?

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#Question id: 2041

#XL - S Microbiology

Function of Properdin

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#Question id: 27235

#XL - T Zoology

What is the composition of nucleoside?

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#Question id: 5705

#XL - R Botany

The chromosome has been broken at two points, and the segment between them has been inverted. What will be affects of this inversion however, person is heterozygous this abnormality?

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#Question id: 8919

#XL - R Botany

The last common ancestor of all animals was probably a

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#Question id: 20212

#XL - P Chemistry

If the nitrogen atom had electronic configuration 1s⁷, it would have energy lower than that of the normal ground state configuration 1s² 2s₂ 2p³ because the electrons would be closer to the nucleus. Yet, 1s⁷ is not observed because it violates.