You are examining a human pedigree for a trait. You notice that the trait appears in every generation; is equally likely to occur in males and females; and, when one parent is affected, about half of his/her offspring are affected

The trait is most likely:
A. dominant.
B. recessive.
C. epistatic.
D. produced by multiple alleles.
E. incomplete penetrance.


A

Biology & Microbiology

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Which group has six legs and two antennae?

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Progeria is a genetic disorder that causes numerous symptoms that resemble premature aging in patients. Progeria is caused by a dominant allele, and it always results in fatality before sexual maturity. Which of the following statements must be true about progeria?

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Which protist group possess a crystalline rod in their flagella?

a. ciliates b. diatoms c. euglenoids d. water molds e. zooxanthellae

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