Is something is a recessive disease, does that mean it is heterozygous?

Question

or what does it mean?

Answer 1

It means that in order to see the disease manifest itself in a person, that person has to inherit the bad gene from both the mother and the father.  The person would have to be homozygous for the disease allele.

The reason that recessive alleles can survive in the population is that they can "hide out" in people who have one good copy of the gene and one bad copy (that person is said to be heterozygous for the disease gene).

Answer 2

Recessive disease are single gene disorders that occur only when an individual carries two malfunctioning copies (mutant alleles) of the relevant gene. Such individuals are described as homozygous and arise most frequently as the offspring of the heterozygous parents - parents who each possess one normal allele and one mutant allele. In most cases the parents are  perfectly healthy because the mutant allele has no adverse effect when a normal allele is also present. The parents are said to be carriers of the disease. Examples of recessive diseases include Cystic Fibrosis, Spinal Muscular Atrophy, and Phenylketonuria. Hope this helps

Answer 3

no it means it is homozygous because a recessive disease needs two of the same alleles such as rr and because they are the same they are homozygous.

Heterozygous means 2 different alleles for the same gene such as Rr.

Homozygous means two of the same allele for a gene such as rr.

Answer 4

yes a recessive disease has a recessive allelle for the disease and a dominant allelle not for the disease.  So there are two different chromosomes making the genetic code heterozygous.