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because when you take a gene from another species they don't always turn out the way you whant them to for example; if you take a gene from a blue plant and put it into a red plant you might get a verious of colour because somewhere in the family tree there would be a different colour of parents.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoA recessive allele only shows up in the phenotype (is only manifested physically) if there is no paired dominant allele to cover it up. Natural selection against a recessive allele can only act when the recessive allele shows up in the phenotype. This means that there are a lot of organisms carrying an invisible recessive allele around. As long as the recessive is invisible (paired with a dominant allele) natural selection can't find it and can't do its job.
Wiki User
∙ 12y agoAffected organisms who are homozygous recessive may not live long enough to reproduce, thus removing their defective recessive alleles from the gene pool.
Wiki User
∙ 15y agoBecause they are only expressed in 1 in 4 phenotypes, but are carried in 3 in 4 genotypes
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What do you call the process of choosing parent organisms for the characteristics that you want in their offspring?
the process of selecting a few organisms with the desired traits to serve as parents of the next generation is called what?
A pig's selective breeding history?
a pig's selective breeding history
When organisms with certain desirable triats are mated?
Selective Breeding Selective Breeding
Why are mutations useful in selective breeding?
Because without mutations, selective breeding would be almost impossible.
When a farmer breeds only his or her best livestock the process is involved is?
artificial selection artificial selection
What do you call the process of choosing parent organisms for the characteristics that you want in their offspring?
the process of selecting a few organisms with the desired traits to serve as parents of the next generation is called what?
What is the breeding of organisms that have a certain desire trait?
Selective breeding.
What term is used to refer to the breeding of improved varieties of plants and animals?
It's Selective Breeding! Just found out for school.
How do you use artificial selection in a sentence?
Artificial selection, also called selective breeding, is a form of human intervention in plant or animal evolution.
What process do humans use to influence the traits of a species?
selective breeding; been going on for thousands of years. genetic engineering; been going on for decades.
A pig's selective breeding history?
a pig's selective breeding history
What jobs include selective breeding?
Biotechnology is involved in Selective Breeding.
What is the process called pairing individuals to breed for certain traits?
Basically selective breeding...
Mendel produced true-breeding strains of pea plants through the process of?
Inheritance.
What is the process by which humans select plants or animals for breeding based on disired traits?
They selectively breed them. So that the animal has the best characteristics possible. Examples are pigs with more fat or sheep with thicker wool.
What are two types of selective breeding and how are they compared?
Selective breeding, Inbreeding and hybridization. :)
When organisms with certain desirable triats are mated?
Selective Breeding Selective Breeding
