Question

Porcupine man is characterized by
a) Straight hair on the body.
b) Thick hair on Dave
c) Thick hair on chest
d) Growth of hair on the Rimo pinna.

Answer 1

Hint: Porcupine man is known as Ichthyosis hystrix or lambert type. It is a disease defined or seen particularly on spiny scales which cover the entire body except the face, genitals, palms and soles. Except these body organs everywhere these scales are found. It is a rare skin disorder. It is an autosomal dominant condition.

Complete answer:
a) Straight hair on body- Porcupine man is a clinical condition where spines like hair, straight across the body, are present, which is why it can be called spines Porcupine is an animal whose spine or structure is similar across the skin or body, which is why its name lies with the disease of the animal.
Option a is correct.
b) Thick hair on Dave- as discussed in the above points- body hair is different but having hair which are pointed like a spine or needle that is sharp is a rare skin condition which affects the whole body except certain parts.
Option b is not correct.
c) Thick hair on chest- thick hair on chest region can also be characteristics of the human male body. Generally, also they have such hair on that region, but in porcupine condition they do also have hair on their chest as it’s a part of their body too but pointy hairs are a rare character in this disease.
So, option c is incorrect.
d) Growth of hair on the Rimo pinna. Growth of hair on the rims of pinna, pinna is a part of ear and it is the outer visible region of ear through which sound waves enter. So, people having hair on pinna is a rare genetic trait too. But it is not in any condition.
So, option D is not correct.

Hence, Option a) is the correct answer.

Note:
As we discussed the condition the disease appears to be the autosomal dominant condition. It has two types- Lambert type and the other is Rheydt type. Which is seen in German cities. Symptoms are- bilateral hearing loss and spiky hyperkeratotic masses which cover the whole body but still palms and soles are affected. It can be slightly different from the Lambert type.