Although there is a strong genetic component to hip dysplasia in dogs, new research suggests
that environment also plays a role. Environmental factors that influence the development of
hip dysplasia include such things as overweight condition, injury at a young age, or repetitive
motion on the forming joint (e.g., jogging with a puppy under the age of one year). Based on
this, which of the following is true about this disease?
a. This disease has evolved with the different dog populations.
b. This disease is both acquired and inherited.
c. This disease occurs due to mating individuals of different species.
d. This disease is a result of natural selection.
B
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What would happen if a transposon were to integrate into the replication origin of the bacterial genome?
A) The transposon would be replicated with the genome. B) The transposon would "jump" immediately to another location. C) The transposon would inactivate the replication origin, so no DNA replication would be possible. D) The transposon would express its genes constitutively.
Which hormone is involved in a negative
feedback relationship with the anterior pituitary and the hypothalamus?
a. aldosterone b. epinephrine c. norepinephrine d. cortisol e. ACTH
Which of the following is a likely side effect of gestational diabetes?
A) impotence B) preeclampsia C) low blood pressure D) low birth weight
Which of the following is a vaccine-preventable disease?
A) genital warts B) genital herpes C) fifth disease D) infectious mononucleosis E) roseola