Shingles-Symptoms. When the virus that causes chickenpox reactivates, it causes shingles. Early symptoms of shingles include headache, sensitivity to light, and flu-like symptoms without a fever.You may then feel itching, tingling, or pain where a band, strip, or small area of rash may appear several days or weeks later.hingles-Symptoms. When the virus that causes chickenpox reactivates, it causes shingles. Early symptoms of shingles include headache, sensitivity to light, and flu-like symptoms without a fever.
autosomal-recessive inheritance, a pattern of inheritance resulting from the transmission of a recessive allele on an autosome. Males and females are usually affected with equal frequency. If both parents are heterozygous (Aa), each of their children has a 25% chance of expressing the trait of the recessive allele.
Recessive trait. Definition. noun. (genetics) A genetic trait that results from the expression of the two recessive alleles. Supplement. When the dominant allele is lacking or when the two alleles present are both recessive, their expression results in a recessive trait.