From the studies on chromosome similarities, it looks as though humans are most closely related to
a. apes.
b. apes and gorillas.
c. chimpanzees.
d. gorillas.
e. lemurs.
C
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Check all of the reasons that temperature is important for organisms.
_____ It affects the rate of biochemical reactions. _____ It affects the fluidity and rigidity of plasma membranes. _____ It has a direct effect on blood cell production.
A disorder is inherited by all the daughters of affected males, but by none of his sons. Heterozygous females are affected, and will pass on the trait to half their children, with boys and girls equally affected. What is the mode of inheritance of the trait?
1.autosomal dominant 2.sex-linked recessive 3.autosomal recessive 4.X-linked dominant 5.X-linked recessive 6.mitochondrial inheritance 7.Y-linked inheritance
Evidence for the evolution of antibiotic resistance in bacteria has been evaluated ________
A) in populations of bacteria within individual patients B) in studies comparing newly diagnosed patients v. patients who have relapsed after antibiotic treatment C) in studies comparing the fraction of patients with resistant bacteria and society-wide use of antibiotics D) in all of the above examples E) in no empirical studies; there is no evidence that antibiotics act as a selective agent
Nucleolus , chromatin are the structures seen in the
a. cytoplasm b. chloroplast c. nucleus