Biology, 26.07.2019 07:30, sanafarghal
In 1869, dna was discovered within the nuclei of cells. by the 1940s, scientists knew that chromosomes were made of both dna and protein but did not know which was the genetic material of cells. in the 1950s, scientists demonstrated that dna is the material responsible for heredity. in 1953, using information collected by other scientists, an american biologist and an english physicist built a three-dimensional model of dna. these discoveries best illustrate the importance of
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Biology, 22.06.2019 02:00, Bashirar19
The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste. the percentage of food that the united states wastes each year is %.
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Biology, 22.06.2019 04:30, donald1255
Individuals do not compete directly for resources, but are prey for the same predator
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Biology, 22.06.2019 15:20, barbiegirllover
What is required in the genotype of an individual to show a recessive trait? a. two recessive alleles b. at least one recessive allele c. no recessive alleles
Answers: 2
In 1869, dna was discovered within the nuclei of cells. by the 1940s, scientists knew that chromosom...
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