Human have higher than usual % individuals with genetic disorder. Why?

Question

A human population has higher than usual percentage of individuals with genetic disorder. The most likely reason for the occurance of this phenomena is

A) Mutations and gene flow
B) Mutations and natural selection
C) Nonrandom mating and genetic drift
D) Nonrandom mating and gene flow
E)All of the are correct

I don't understand what is the differnece between gene flow and random / nonrandom mating here. What is different about gene flow and genetic drift?

Answer 1

c
gene drift is unintentional change in genotype resulting in a new /sub/species used by humans to "purify the blood" of domestic breeds /then it is of course intentional/
gene flow i consider spacial movement of a single gene sppreading of weaking through population.

to the question the far most precise answer relating humans is that we keep "genetic disordered" individuals alive -thus increasing chance of spreading their faulty genes into the next generation even if their bearer is rather not viable /wanted to write "able to live"- am not native speaker, sorry/

Answer 2

Inbreeding doesnt create genetic disorders. It just creates a high likelihood of the offspring to have more genetic disorders. Do you know what a carrier is? I'll explain just in case you don't know. Its when a person or anything living like an animal has a disease or sickness in their genes but they don't have it. They are carrying it. So pretend your moms a carrier and your dad isnt. Since your dad isn't a carrier, there is a very low chance to get the disease your mom is carrying. And if the family keeps breeding with a non carrier the chance of getting the disease gets smaller and smaller. So let's say you breed with a sibling. You are both carriers so your offspring will have a high chance of getting a genetic disorder.

Answer 3

A.)Mutations and gene flow.

but with the proviso that the genetic disorder is not lethal before offspring are produced. An example is the mutation for Haemoglobin S (sickle cell disorder), originally found in Africa, has flowed to the rest of the world, including areas where there is no need for the benefit of Malarial resistance. In heterozygous form, is not lethal, so may be passed on to offspring without affecting health or decreasing the chances of offspring.

Answer 4

The premise is faulty. What is genetic disorder? What is usual percentage? With what is the human population being compared?