as-we-have-seen-inbreeding-can-reduce-offspring-fitness-by-exposing-deleterious-recessive-alleles-ho

Question

As we have seen, inbreeding can reduce offspring fitness by exposing deleterious recessive alleles. However, some animal breeders practice generations of careful inbreeding within a family, or "line breeding," and surprisingly many of the line-bred animals, from champion dogs to prize cows, have normal health and fertility. How can it be possible to continue inbreeding for many generations without experiencing inbreeding depression due to recessive alleles? (Hint: Consider some of the differences between animal breeders and natural selection in the wild.) Generally, if a small population continues to inbreed for many generations, what will happen to the frequency of the deleterious recessive alleles over time?

Simon Sauvageau · Accepted Answer

animal beaters sometimes utilize inbreeding, and yet they still result in healthy animals. How is this possible? How is it that inbreeding depression does not occur? So let&#x27;s remind ourselves, inbreeding is thievy mating between to genetically related organisms. So and a inbreeding depression is when there is harmful recessive a wheels that begin to increase in frequency. So the increase. So the benefit that animal breeders have is that they can choose which animals to mate so that they ensured that the harmful recess of a wheels are being selected against. So animal breeders are able to avoid this inbreeding depression by being able to choose, uh, choose meats between organisms saved like a line of dogs or camels. They&#x27;re able to see which organism may have that harmful recess of a wheel. And make sure that it does not meet with another organism or individual who has the same harmful recess of illegals. And this will make sure that the frequency of the harmful arrest recess if it wheels does not increase, and thus there&#x27;s no inbreeding depression now in the wild. Normally, if a small population in breeds for many generations, this will not occur normally, an inbreeding depression will occur. So the difference is that a wild population will have an increase in those armful recessive Leal&#x27;s if inbreeding occurs and their frequency will increase.

Sisi Gao · Answer

this question is testing our understanding to inbreeding inbreeding. The big problem of inbreeding is it would bring the inbreeding depression, which means the mating of closely related individuals may bring together duality serious recessive mutations that can cause abnormalities under susceptible susceptibility to disease. So they answer for this question is option D. A breeder would not allow cools relatives to mate because I heard income bring together Galateri iss recessive mutations that can calls abnormalities and susceptibility to these.

Simon Sauvageau · Answer

inbreeding is when mating occurs between genetic relatives. This can that cause inbreeding depression, which is when fitness is lowered due to an elimination of favorable A wheels. So we&#x27;re going to have a lowered fitness due to favorable, favorable A wheels being lowered due to inbreeding. This will decrease reproductive efficiency so reproductive efficiency is going to decrease when an inbreeding depression occurs. However, in reading has different effects on family lineages or generations, so may actually have greater reproductive fitness from inbreeding, while there&#x27;s still experienced this inbreeding depression.

Simon Sauvageau · Answer

interbreeding is the process of meeting that occurs between genetic relatives. This process reduces hetero Zeiger frequency and increases homocide a frequency. This could be harm and this can increase arm for process of the wheels. So interbreeding is going to decrease headers I goods and increase almost I get. And this can lead to harmful recessive A leal&#x27;s and by increasing the amount of harmful recessive wheels, the overall fitness of a population will decrease. So overall fitness is going to decrease if an overall, if the overall fitness of a population decreases, the chances of survival in the population will also decrease, So interbreeding can be very harmful to a population to do this chain of events.

Grant Castaneda · Answer

Hello, everyone. I hope all is well. And today I&#x27;ll be helping you with the eighth problem with the Chapter 19 problem set. So a is asking, why are inbred offspring not as fit? So another thing within breed offspring is, um it&#x27;s not good, because, um, sometimes the chromosomes and when the guys I go is forming, it doesn&#x27;t with do it right just because of certain things. But let&#x27;s just go through the answer. So you have a inbreeding. Eso you have a inbreeding causes causes normally silent illegals to be expressed, which not necessarily true, be the DNA of close relatives reacts negatively to the offspring. Uh, no. And then, you see, inbreeding can bring together rare the military ISS mutations that lead to harmful fino types. So that is true. So whatever is being expressed in the, um, you know, type is specifically what needs to be fixed. So I hope you found this helpful, and I&#x27;ll be a

John Barone · Answer

Look, this question is asking us about cystic fibrosis, and you will recall that cystic fibrosis is a genetic disease and that you get cystic fibrosis by inheriting to, uh, cystic fibrosis, a wheels and these air recess of Leo. No. To get cystic fibrosis, you have to have to recessive Leal&#x27;s and I&#x27;m indicating a cystic fibrosis. Julio&#x27;s ah, lower case C Um, if if you have either Sisi Capital, C Capital C or Capital C Duke Little C right, then you end up with and normal FINA type, at least with respect to cystic fibrosis. The question is asking us what would happen if you have a population where fists, cystic fibrosis with permanent and inbreeding became more common and what you need to remember. What in this case is that went inbreeding becomes common in a population. There is an increase in the number of homers I got&#x27;s and a decrease in the number of Hedorah cycles. So we would see an increase and the number of individuals who are big C, big C that is normal. Uh, and but we would also see an increase in the number of individuals who are a little see little C that is who have cystic fibrosis, and we would see a decrease in the number of individuals who are headers. I goes, that is, they have a capital C and a little CIA. Leo. All right, so in inbreeding, like individuals mate with like individuals and so individuals who say carry the cystic fibrosis alil are more likely to meet with other individuals who have the cystic fibrosis wheel. And that&#x27;s why we would end up seeing more individuals with the little see little See cystic fibrosis Pena type in a population. All right, So when inbreeding occurs, we see this increase in the number of of cystic fibrosis individuals. If there&#x27;s more who Masai goats who are little, see little C. What that means is that there are more individuals who have the disease, and if they die before they reproduce, then they&#x27;re not going to pass on the little CIA, Lille to their offspring. So if they die before they reproduce than the number of little CIA wheels in the population is going to decline. If inbreeding was extreme so that cystic fibrosis people are individuals with cystic fibrosis leaves only made it with others. This is stick fibrosis a wheels. Then eventually you could see the loss of the system. Little See cystic fibrosis olio from the population. Um, in most cases, however, there are going to be some individuals who will continue to be better is I go right and headers I got&#x27;s will continue to have that little seat polio. So in general, when inbreeding occurs, you see an increase in the number of homes. I guess individuals and you see a decrease in the number of hetero Seiken individuals. And if those homes I goats die before reproducing, there&#x27;s going to be a drop in the illegals that caused that particular disease in this case, cystic fibrosis.

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