How can a genetic map be used?
What will be an ideal response?
Genetic maps can be used in the process of localizing genes and studying the distribution of genes on chromosomes and in the genome.
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How are the eyes of sharks well adapted to the environment in which they live?
What will be an ideal response?
Which of the following is NOT a characteristic of cytokinin?
a. it affects meristem cell division b. it stimulates the development of lateral buds c. it inhibits the development of lateral roots d. it always has the same affect on cells as auxin does e. more than one of these is NOT a characteristic of cytokinin
Why is it important that you take care of your neurons?
A) They are able to divide rapidly and can be turned into cancer cells. B) They only undergo mitosis after the brain has obtained enough sleep. C) They are unable to divide by mitosis. D) They are very susceptible to mutations of their DNA.
Potassium ions are important in the resting membrane potential and the action potential of the nerve and to the contraction of muscle cells. The concentration gradient of potassium ions is critical to both. An excess of potassium outside a neuron or
muscle cell would negate the concentration gradient. What would happen if the heart were injected with massive amounts of potassium? Explain your answer. What will be an ideal response?