Which characteristic applies to a normal individual who is a carrier for an X-linked trait such as hemophilia?
A) The carrier is always female.
B) The carrier is homozygous for the recessive condition.
C) The carrier shows the recessive phenotype.
D) The carrier cannot have daughters who have the allele.
A
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Which of the following molecules act as building blocks (monomers) of polypeptides?
A) 1, 4, and 6 B) 2, 7, and 8 C) 7, 8, and 13 D) 11, 12, and 13 E) 12, 13, and 15
Potential candidates for biological warfare
A) are generally gram-negative rather than gram-positive. B) can be virtually any pathogenic bacterium or virus. C) are eukaryotic rather than prokaryotic. D) must be genetically engineered to be effective.
In 2011, clinical medical trials using _____ to replace diseased cells in the eyes of blind patients showed some
success of restoring vision.
a. bone marrow cells b. central disk cells c. nervous tissue d. embryonic stem cells e. induced pluripotent stem cells
The least inclusive of the taxonomic categories
listed here is a. family. b. phylum. c. class. d. order. e. genus