When you buy an Apple hardware product such as a Mac or an iPad, you get a one-year hardware warranty and 90 days of free phone-based tech support, starting from the date of purchase.ow long it extends support: For Macs and displays, AppleCare gets you a total of three yearsâ supportâin other words, it extends phone support by 33 months and the limited warranty by two years (for a total of three years).
Definition of heterozygous. : having the two alleles at corresponding loci on homologous chromosomes different for one or more loci.
[hetâ²ÉrÉzÄ«â²gÉs] Etymology: Gk, heteros + zygotos, yoked. having two different alleles at corresponding loci on homologous chromosomes. An individual who is heterozygous for a trait has inherited an allele for that trait from one parent and an alternative allele from the other parent. An individual who is heterozygous for a genetic disease caused by a dominant allele, such as Huntington's disease, manifests the disorder. A person who is heterozygous for a hereditary disorder produced by a recessive allele, such as sickle cell anemia, is asymptomatic or exhibits reduced symptoms of the disease.