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What causes the great variety of possible gene combinations from the offspring of two parents?
Wiki User
∙ 11y ago
The principle is called "recombinant DNA." During the process of fertilization the egg and sperm provide one copy DNA genome from each parent. These DNA strands breakup into individual genes and then recombine randomly. This causes the traits of the offspring to reflect the traits of the parents randomly based on the probabilities of gene combinations.
Wiki User
∙ 11y ago
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The great variety of possible gene combinations in a sexually reproducing species is due in part to the?
Recombination, or crossing over, is the process by which homologous chromosomes exchange genetic material during meiosis. This creates gametes with many different combinations of alleles, and is a major source of genetic variation in sexually reproducing species.
How does sexual reproduction lead to variety in a species?
Sexual reproduction leads to variety in the gene pool because the genome of an offspring organism may have a mixture of the genomes of both parents, rather than just the material of a single parent. Evolution in asexually reproducing organisms occurs by mutation, rather than genetic variation, since there is only one parent.
Advantages of sexual reproduction in animals?
Sexual reproduction produces offspring that have a combination of the genetic material of their parents. A variation or mutation in genetic code may be beneficial or detrimental to the animal, which will lead in its earlier death, OR survival to reproduce. Reproduction primarily by animals with beneficial mutations produces a purified genepool enabling the species to survive hard times through preference added by natural selection. Natural selection always prefers healthy genes to pass on and discard the weaker genes. This sort of a feat could only be acheived by sexual reproduction; it is not possible in asexual reproduction where the genetic code is same for the offspring as the parent unless drastic change due to sudden mutation occurs to produce altogether new species which is not normal. Co-operative procreation increases the effective evolution of a creature by a factor of 6.
Which type of reproduction sexual or asexual results in offspring with greater gentic variation?
Sexual reproduction results in a greater variety of inherited traits because it combines genes from two different individuals. Asexual reproduction is simply a copy of an organism's genetic material so that it is a 100% match. Sexual reproduction combines different gene pools as well to create more diversity.
Why is sexual reproduction more advantageous than cloning?
Sexual reproduction causes the child to be somewhat different from the parents, which might be advantageous in terms of adapting to the environment. A clone will be a precise copy of the parent, which is bad news if the environment is changing.
How does sexual reproduction result in a larger variety of possible gene combinations?
Basically, in three ways. Independent orientation of the chromosomes in meiosis. Crossing over in chromosomes in meiosis. Random fertilization; the random mathching of any sperm/egg combination in fertilization.
What are Advantages of sexual?
Where genetic information is shared by gametes from two parents it produces variety in the offspring. This variety can then allow a species to evolve to exploit different environments.
What are sexual advantages?
Where genetic information is shared by gametes from two parents it produces variety in the offspring. This variety can then allow a species to evolve to exploit different environments.
What ares advantages of sexual reproduction?
Where genetic information is shared by gametes from two parents it produces variety in the offspring. This variety can then allow a species to evolve to exploit different environments.
Why is there no variety in offspring from asexual reproduction?
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Why does carbon enter into a variety of chemical combinations?
Yes
During the formation of gametes in a hybrid tall plantthe allele and the short allele stay together?
During the formation of gametes in a hybrid tall plant, the alleles for tall and short height do not stay together. They segregate and assort independently during meiosis, resulting in a random combination of alleles in the gametes. This allows for a variety of possible genetic combinations in the offspring.
What would you get if you bread a miniature wired hair dashound with a dashound?
Unless both parents are Miniature Wirehaired Dachshunds, and even if the mother/father is a Dachshund but from a different variety, the resulting offspring would still be seen as a mixed breed. Unless both parents are the SAME variety (both Longhaired etc.) breeders will see the puppies as impure. The offspring of a Miniature Wirehaired Dachshund and a normal Dachshund would likely have a coat that is slightly wavy in places but not wiry.
Main component in rocks?
Rocks are composed of a large variety of mineral combinations.
How many colours do bougainvillea's have?
Red,white, pink, yellow and a variety of their combinations.
Can a child have more IQ than its parents?
Yes, it is possible for a child to have a higher IQ than their parents. IQ is influenced by a combination of genetic and environmental factors, so a child's intelligence can surpass that of their parents due to a variety of reasons such as unique genetic combinations or different environmental opportunities for learning and development.
Why is it not possible to assign a melting temperature to a rock?
Rocks are combinations of minerals which have their own specific melting temperature. The variety of mineral compositions that are possible in a single rock type would make it hard to predict (without knowing the composition) when it would reach liquidus.
