Please tell me what this means?

Question

This is a question I need to answer for hw...what's the meaning of"Explain how genetic manipulation has created so many breeds of dogs."?Also do you know any sites to find a Prentice Hall Text book It's published:Needham,Massachusetts,Upper Saddle River,New Jersey,Glenview,and Illinois?It's green and has Young Bobcats on the front cover.Not to buy a book,just to look at it for help and solutions...like:Hotmath.com but science help though.Sorry it's long and confusing!

I need answers by TODAY,cause it's due tommorow!HEEEEEEEEELP!Please?!T_T

Answer 1

i think that they mean dog breeding (labradoodles, cockapoos etc)
and try www.half.com for the book

Answer 2

I'd say that you could write something like this in your paper.

Genetic manipulation of dogs goes back to the time when dogs were first domesticated. The first people to domesticate dogs must have seen the huge potential in these animals. They would have taken the dogs that had the most desirable traits for whatever end to which they were working, and bred it with similar dogs. Through the generations, people have needed to adapt their domesticated animals to different purposes, so different traits were emphasized in breeding. With the dawn of pets as we know them now, the genetic traits being emphasized are based on economics.

I hope that the bullshit in the previous paragraph helps you.

Answer 3

the dog question -
All dogs came from wolves, but the vast majority of dog breeds look nothing like them. The reason is deliberate genetic manipulation of the species by humans. This was done thousands of years before people knew anything about DNA or genes. It was accomplished by picking specific pairs of dogs from a general group. The dogs you picked are ones that have traits you want. If you want a big powerful dog, breed two big powerful dogs. If you want cute fluffy small dogs, breed the two cutest fluffy ones you can find. The puppies won't be what you want initially, but if you keep doing this over and over for hundreds of generations, eventually you end up with miniature poodles or St. Bernards.
this was done also for dogs with short legs, such as basset hounds, so they can crawl into the sub-terranean dens of other mammals and kill them. You keep breeding traits deliberately.

Answer 4

Over the years, people have breeded different types of dogs to produce dogs with certain traits that they want to have in their dogs..
For example, some dogs have short hair that dont shed, but they love to have poodles, so they intermix a poodle and the shorthaired breed to come up with a whole new breed of shedless poodles.

Its about intermixing dog breeds to get all the traits you want in a dog.

This can take a number of litters to create what you want, all the while new breds are being created.
Hope that helps a little.

Answer 5

Hey, hope this helps, dogs breed and through crossing over, the chromosomes switch with the other zygote's of egg's, and then there is a site wikipedia. wiki knows everything, Genetic variation refers to the variation in the genetic material of a population or species, and includes the nuclear, mitochodrial, ribosomal genomes as well as the genomes of other organelles. New genetic variation is caused by genetic mutation, which may take the form of recombination, migration and/or alterations in the karyotype (the number, shape, size and internal arrangement of the chromosomes). Genetic drift is a statistical measure of the rate of genetic variation in a population.

For example, all humans are members of the same species, Homo sapiens, the first upright mamal, but no two individuals are exactly alike. Even for twins, there are slight differences in their DNA. For the global population, there are many similarities and differences among people. For example, eye colour and blood type differ among individual Homo sapiens. Differences in these traits are due to genetic differences, or genetic variation. The human gene pool carries alternative alleles that affect blood type and many other traits. Other species also have variation in their gene pools. For example, apple trees are all members of one species, but the fruit produced by different trees can be red or yellow, hard or soft, sweet or tart, large or small. These differences are caused partly by genetic variation. When two or more alleles of a gene are present in a gene pool, the population is said to be polymorphic.
Population geneticists have studied the gene pools of many species of plants and animals. They have examined variation in obvious traits such as shape and colour. In many cases, they have also found genetic variation in the amino-acid sequences of proteins and the nucleotide sequences of DNA. For example, the fruit fly Drosophila melanogaster has an enzyme called alcohol dehydrogenase. There are two slightly different forms of alcohol dehydrogenase that can be distinguished by electrophoresis. The two forms differ by only one amino acid. The amino acid difference is caused by one nucleotide difference in the DNA. In natural populations all over the world, Drosophila melanogaster gene pools are polymorphic for the alcohol dehydrogenase gene. The populations have both types of alleles and produce both varieties of alcohol dehydrogenase.


sorry so long, hope it helps.

Good luck! :)

Answer 6

Genetic Manipulation is when you play around with certain species of something... in this case, dogs. They mix the genes in order to get what type of dog they want. This is usually best represented with flowers and how they form hybrids. Good luck

Answer 7

I think they just want you to explain how interbreeding (like a lab and a poodle) has created new breeds. If you want info on genetic manipulation I would recomend looking for Gregor Mendel on Yahoo, I don't know of any specific sites though...

Answer 8

omg hahahi remember that book
ive tried looking for it online before

but the answer to your question
umm
explain how people have made it so different genes show in dogs like the dominant and recicive genes
so some are tall
some short
some black some white
and how people have through years monitored it so taht the ones they wanted would show
if you ever did that little 4 box square, just kinda explain that


hope this helps

Answer 9

lots of the time it is between 14 and 18 weeks...my checklist is going to do it at 18 weeks...i nonetheless am interior the wait to make certain the gender yet im particular i would be marvel reason we are returned and forth all of the time whether that's a boy or a woman

Answer 10

That question is more focused on selective breeding. For thousands of years people would not let their dogs breed if they had undesirable traits and vise versa. This would lead to specific gene pools in specific breeds.

Answer 11

Sorry Jo Jo, I have to say, it was not any of our faults that you waited the last minute to complete a homework assignment. You need to learn that homework comes first if your serious about your education. This is a question that I know for fact was given not just today for you. Shame on anyone who gives you the answer that you procrastinated to look up.