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: 8928

#SCPH05 I Biotechnology

An adult animal that possesses bilateral symmetry is most certainly also

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#Question id: 5534

#SCPH28 | Zoology

In meroblastic cleavage, cleavage happens only in the

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#Question id: 1566

#SCPH05 I Biotechnology

Histamines trigger dilation of nearby blood vessels, and increase in their permeability. Which of the signs of inflammation are therefore associated with histamine release?

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#Question id: 4915

#SCPH06 I Botany

When an albino female plant of maize is crossed with normal green male plant, all plants in the progeny are albino because

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#Question id: 256

#SCPH12 I Genetics

The tetranucleotide AGTC (in DNA) has a free hydroxyl group on