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In sexually reproducing species, each individual begins life with DNA inherited from
Chapter 22, Problem 10(choose chapter or problem)
In sexually reproducing species, each individual begins life with DNA inherited from both parent organisms. In a short essay (100–150 words), apply this idea to what occurs when organisms of two species that have homologous chromosomes mate and produce (\(\mathrm{F}_{1}\)) hybrid offspring. What percentage of the DNA in the \(\mathrm{F}_{1}\) hybrids’ chromosomes comes from each parent species? As the hybrids mate and produce \(\mathrm{F}_{2}\) and later generation hybrid offspring, describe how recombination and natural selection may affect whether the DNA in hybrid chromosomes is derived from one parent species or the other.
Questions & Answers
QUESTION:
In sexually reproducing species, each individual begins life with DNA inherited from both parent organisms. In a short essay (100–150 words), apply this idea to what occurs when organisms of two species that have homologous chromosomes mate and produce (\(\mathrm{F}_{1}\)) hybrid offspring. What percentage of the DNA in the \(\mathrm{F}_{1}\) hybrids’ chromosomes comes from each parent species? As the hybrids mate and produce \(\mathrm{F}_{2}\) and later generation hybrid offspring, describe how recombination and natural selection may affect whether the DNA in hybrid chromosomes is derived from one parent species or the other.
ANSWER:Step 1 of 3
In biology, reproduction can be defined as the physiological process in which an organism multiplies to produce new offspring from the same species. This process is responsible for the continuity of life on the planet and the growth of the population.