In Huntington disease, a child will typically only get the disease if one parent also has it. It is as common in boys as in girls. This disease is Select one:
a. autosomal recessive.
b. X-linked dominant.
c. X-linked recessive.
d. pleiotropic.
e. autosomal dominant.
e. autosomal dominant.
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The model that assumes that evolution proceeds with slow successive change in a given evolutionary line is referred to as
A. successive descent model. B. punctuated equilibrium. C. gradualism. D. the allopatric model. E. the sympatric model.
Regarding phage replication,
A. the majority of phages are temperate. B. when integrated into host DNA, the phage DNA is called a prophage. C. lambda is a good example of a temperate phage. D. All of the choices are correct.
A bacteriophage transfers a random fragment of DNA of the previous host to the current host. This is an example of
A. the creation of an Hfr cell. B. generalized transduction. C. conjugation. D. specialized transduction.
Contractions of the dome-shaped __________ and
the intercostal muscles between the ribs alter the volume of the thoracic cavity during breathing. Fill in the blank(s) with the appropriate word(s).