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Video Biología
"Gregor Mendel pioneered heredity theory, proving that many physical traits can be passed on from generation to generation. These inheritable traits are dictated by DNA. Mendel explains heredity theor ...
"An organism's genotype is its pairing of alleles for a specific gene. Genotypes, unlike phenotypes, can be homozygous or heterozygous. If an organism is heterozygous for a gene, or possesses one of e ...
Video Biología
"Within and between populations there is genetic variation, or variations in individuals' genetic makeup. This variation allows for natural selection and can sometimes be caused by mutations within a ...
Hipervinculo Biología
"Punnett squares are useful in genetics to diagram possible genotypes of the offspring of two organisms. The Punnett square for a monohybrid cross tracks the inheritance of a single trait and consists ...
"In both codominance and incomplete dominance, both alleles for a trait are dominant. In codominance a heterozygous individual expresses both simultaneously without any blending. An example of codomin ...
"When two genes are located on the same chromosome they are called linked genes because they tend to be inherited together. They are an exception to Mendel's law of Segregation because these genes are ...
"An organism's phenotype is the form of a gene which is expressed. Phenotypes disregard the allele pairing for a gene and focuses only on the trait. We can figure out an organism's phenotype from phys ...
"An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele. If an organism is heterozygous for that trait, or possesses one of each allele ...
Video Biología
"Gregor Mendel's law of segregation has four parts. First, it defines an allele. Second, it states that organisms inherit one allele from each parent. Third, it states that gametes only carry one alle ...
"Gregor Mendel's law of independent assortment states that when genes are inherited, they are inherited independent of each other. Linked genes are exceptions to the law of independent assortment beca ...
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