Which of the following is true?
A. All the cells of an individual have the same genetic sequence despite having different shapes and functions.
B. All the cells of an individual have the same genetic sequence and present the same shapes and functions.
C. All the cells of an individual have different gene sequences and present the same shapes and functions.
D. All the cells of an individual have different genetic sequence and so present the same shapes and functions.
Ans: A. All the cells of an individual have the same genetic sequence despite having different shapes and functions.
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Which group of mammals exhibits the widest
distribution and greatest diversity? a. marsupials b. monotremes c. placentals d. marsupials and monotremes e. placentals and monotremes
Which food item is least likely to be considered genetically modified?
A) microwave popcorn B) potato chips C) a candy bar D) a head of broccoli
A restriction in genetic variability caused by a drastic reduction in population size is called a
A. Hardy-Weinberg effect. B. polymorphic effect. C. adaptive effect. D. bottleneck effect. E. founder effect.
A young woman presents to the emergency room with fever, headache, and vomiting. Food poisoning is suspected, she is given supportive care, and released. One week later she returns to the hospital in acute renal failure. A medical history reveals that
she had been a volunteer at an orphanage in a rural section of a Caribbean island recently hit by a hurricane. During evacuation from the island, she had to wade through floodwaters suffered several abrasions on her legs and feet. What is the most likely pathogen based on her symptoms and history? A) uropathogenic E. coli B) BK virus C) leptospirosis D) candiduria E) Staphylococcus saprophyticus