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lbvjy [14]
3 years ago
14

What is a key part of Darwin''s idea of natural selection? A. Earth is very old. B. Everything has a predator. C. Organisms'' ch

aracteristics are carried on DNA. D. More individuals are born than can live on available resources.
Biology
1 answer:
svp [43]3 years ago
8 0
"C. Organisms' characteristics are carried <span> on DNA.</span>" would be the best fit, although this still isn't really the core idea behind natural selection, which is that animals survive based on how "fit" they are for their environment.
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This is an observable trait of an organism that can mask the recessive trait.
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This law states an organism has two different alleles for a trait and the allele that is expressed in the phenotype, masking the expression of the other allele,is said to be dominant. The allele whose expression is masked is said to be recessive.
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What is the best explanation if the gel of your PCR product shows smeared bands of multiple sizes? Select one:
trapecia [35]

Answer:

e. None of the above

Explanation:

For me as a Researcher, the reason could be increased Concentration of your DNA sample which you are using as your template. Try to decrease the concentration of DNA (up to 100 ng per reaction is enough and can increase up to 200 ng). so the reason for getting non specific bands is increase concentration of DNA  which results in non specific amplification and also degradation of DNA in the reaction which you can see in your gel electrophoresis results.  

i always corrected my results using the same technique that is lowering the concentration of DNA between 100 and 200 ng per single reaction of PCR.

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2 years ago
Explica por qué a partir de los núcleos de las células del intestino de un renacuajo albino, se obtuvieron ranas albinas en luga
monitta

Answer:

La razón por la que a partir de los núcleos de las células del intestino de un renacuajo albino, se obtuvieron ranas albinas en lugar de células intenstinales, es que fué un experimento de clonación.

Explanation:

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