A chromosome without a centromere is ________

A) paracentric B) acentric C) dicentric D) pericentric E) segmental


Answer: B

Biology & Microbiology

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The cloaca is which structure?

a. A b. B c. C d. D e. none of these

Biology & Microbiology

What is meant by lyophilization of proteins and why is it done?

What will be an ideal response?

Biology & Microbiology

Which of the following statements about smooth muscle in arterioles is FALSE?

A) The muscle is multi-unit smooth muscle. B) Muscle contraction is under intrinsic controls. C) Muscle contraction is under extrinsic controls. D) The muscle forms rings around the arteriole. E) The muscle has inherent (myogenic) tone

Biology & Microbiology

Irregular dental hygiene and a high sugar diet may led to tooth decay. Why?

A. Bacteria consume calcium. B. Glucose forms a weak acid when dissolved in saliva. C. High concentrations of sugar soften the tooth enamel. D. Lactic acid fermentation is used to generate ATP under anaerobic conditions. E. Plaque degrades the tooth's protective mucosal layers.

Biology & Microbiology