Answer:
the answer is biochemistry
Answer: The fossil is 11459 years old.
Explanation:
Half-life of carbon-14 = 5700 years
First we have to calculate the rate constant, we use the formula :
Now we have to calculate the age of the sample:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant = ![1.21\times 10^{-4}\text{years}^{-1} t = age of sample = ? a = let initial amount of the reactant = 100 g x = amount decayed = 75 g a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get [tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}](https://tex.z-dn.net/?f=1.21%5Ctimes%2010%5E%7B-4%7D%5Ctext%7Byears%7D%5E%7B-1%7D%0A%3C%2Fp%3E%3Cp%3Et%20%3D%20age%20of%20sample%20%20%3D%20%3F%0A%3C%2Fp%3E%3Cp%3Ea%20%3D%20let%20initial%20amount%20of%20the%20reactant%20%20%3D%20100%20g%0A%3C%2Fp%3E%3Cp%3Ex%20%3D%20amount%20decayed%20%3D%2075%20g%0A%3C%2Fp%3E%3Cp%3Ea%20-%20x%20%3D%20amount%20left%20after%20decay%20process%20%20%3D%20100%20-%2075%20%3D%2025%20g%20%20%3C%2Fp%3E%3Cp%3ENow%20put%20all%20the%20given%20values%20in%20above%20equation%2C%20we%20get%0A%3C%2Fp%3E%3Cp%3E%5Btex%5Dt%3D%3D%5Cfrac%7B2.303%7D%7B1.21%5Ctimes%2010%5E%7B-4%7D%7D%5Clog%5Cfrac%7B100%7D%7B25%7D)
The fossil is 11459 years old.
In chickens, the black wing allele is co-dominant with the white wing allele. Black and white birds are homozygous for the black (B) allele or the white (W) allele.
In genetics the terms, codominance refers to the pattern of inheritance in which the two versions (alleles) of the same gene are being expressed separately to produce the different traits in the individual. In perfect dominance, only the one allele of the genotype is also present in the phenotype. In codominant cases, both the alleles of the genotype are present in the phenotype. In the case of the imperfect dominance, the phenotype shows the mixture of genotypic alleles. In the genetics terms, codominance refers to the pattern of inheritance in which the two versions (alleles) of the same gene are expressed and separately to produce the different traits in the individual.
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Answer:
A
Explanation:
A is right
I think. But I am not 100 % sure
Answer:
What is the difference between light and dark reaction? The light reaction is the initial stage of photosynthesis which traps light energy to produce ATP and NADPH, whereas dark reaction is the second step of photosynthesis which utilizes the energy from ATP and NADPH to produce glucose.
