Assume that long ear lobes in humans are an autosomal dominant trait that exhibits 50% penetrance. A person who is heterozygous for long ear lobes mates with a person who is homozygous for normal ear lobes. What is the probability that their first child will have long ear lobes.

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#Question id: 28740

#Unit 2. Cellular Organization

Which of the following is a major sites of oxygen utilization ?

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#Question id: 5826

#Unit 8. Inheritance Biology

____ is a disease that causes progressive neurological degeneration that progresses to mental retardation and general loss of body function.

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#Question id: 5703

#Unit 8. Inheritance Biology

Robertsonian translocation is reciprocal exchange of genetic segment between two acrocentric chromosomes. Which of the following is incorrect statement?

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#Question id: 1738

#Unit 4. Cell Communication and Cell Signaling

T-cell help for antibody production:

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#Question id: 4038

#Unit 3. Fundamental Processes

Which of the following plasmids could be used to restore inducible regulation of -galatosidase in this mutant: I+ Oc Z - Y+ A+?