An organism has inherited a mutation that causes a loss of follicles. What do you predict would be the effect in this individual?
A. The organism would lack feathers or hair.
B. The organism would lack skin glands.
C. The organism would lack mesoderm.
D. The organism would lack the lateral line system
Answer: A
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An RNA processing event that frequently leads to different protein products encoded by a single gene is:
A. transcription. B. alternative splicing. C. nucleolytic proofreading. D. phosphorolysis.
Compare the composition, structure, and function of cilia and flagella
What will be an ideal response?
The myelin sheath plays an important role in neuron structure and function. However, when the myelin sheath is missing or not fully intact, there are consequences
There are many conditions that cause demyelination of neurons, some are autoimmune disorders, such as multiple schlerosis, and others are hereditary. The symptoms of these conditions vary, but often include speech impairment and difficulty coordinating movement. Which of the following correctly connects the symptoms of demyelination with the process of nerve impulse transmission? A) Demyelination prevents the formation of an action potential in sensory neurons that transmit signals from the environment to the central nervous system. B) Demyelination slows nerve impulse transmission. C) Demyelination prevents the uptake of neurotransmitters needed to propagate a message to the next neuron. D) Demyelination targets the central nervous system.
A sheath of connective tissue that encloses each skeletal muscles is known as _____.
A. cartilage B. a ligament C. a sphincter D. a joint E. a tendon