What is ZZ genotype

Zygosity (the noun, zygote, is from the greek zygotos yoked, from zygon yoke) (/ z aɪ ˈ ɡ ɒ s ɪ t i /) is the degree to which both copies of a chromosome or gene have the same genetic sequence.A deteriorating effect of severe deficiency ( zz genotype) on lung function has been known for many years;In biology, these outward physical traits are called a phenotype, and that underlying genetic code is called a genotype.Scientists use certain letters to represent different types of genes, known as alleles, which come together to create the genotype.With a z allele, you have an increased risk of lung and liver disease.

That is, they are diploid.This classic form of aat deficiency is referred to as the zz, or pizz in world health organization.We did not identify any zz homozygotes in our study groups.What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?What is the probability of them producing a gamete with the genotype y;z?

Add your answer and earn points.O 25% o 100% o 50% 0%The xy and zw chromosomes share no genes at all.Most eukaryotes have two matching sets of chromosomes;Matthewholt is waiting for your help.

When breeding two racehorses together, the new genotype is calculated as follows:However, this effect may have been overestimated because mainly patients with copd have been studied.