The inheritance pattern in which the mother provides gene products to the developing egg cells is called
A. X inactivation.
B. extranuclear inheritance.
C. genomic imprinting.
D. linkage.
E. maternal inheritance.
E. maternal inheritance.
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Four children of a man and woman who are second cousins have too few teeth, which is an autosomal recessive condition called oligodontia caused by mutation in a gene called LTPB3 on chromosome 11. The affected individuals are also short, with increased bone density in the spine and skull. The protein that causes the symptoms by affecting certain bone cells is too short. The mutation in this family is most likely
A) a missense mutation. B) a nonsense mutation. C) a duplication of the gene. D) a replacement of all purines with pyrimidines.
What processes are included in the treatment of wastewater in industrial plants of developed countries?
A) removing excess nutrients, such as phosphates and nitrates B) removing semisolid wastes C) discharging untreated wastewater into waterways D) burning semisolid wastes for energy
Members of which of the following genera are the most common sexually transmitted bacteria in the United States?
A. Bacteroides B. Rickettsia C. Chlamydia D. Helicobacter E. Treponema
Polyadenylation adds a tail of____ to the mRNA
Fill in the blank(s) with the appropriate word(s).