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A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of 1._______The mutation will lead to 2.________.

1.
A.Embryology
B. Evolution Genetics
C.Comparative Anatomy

2.
A. All the bacteria becoming resistant to the specific Antibiotics
B. The Bacteria becoming nonresistant to specific Antibiotics
C. Less Bacteria becoming resistant to the specific Antibiotics

Give me which answers they are this is worth 20 points, thanks.

Respuesta :

Answer:

1.B). Evolution genetics.

2.C). Less Bacteria becoming resistant to the specific Antibiotics .

Explanation:

Evolution genetics is field of science, which includes study of genetic variations that lead to evolutionary changes in organisms. As some bacteria had changed their DNA that led to development of antibiotic resistance in them.

Due to antibiotic resistance, certain bacteria, in which changes in DNA take place, become resistant against some type of antibiotics and those antibiotics are no longer effective to prevent or kill them

Thus, the correct options to be filled in the blanks are option (B) and option (C).

marianaegarciaperedo

Evolutive genetics studies mutations that emerged in populations that drive them to evolution. Mutations might be selected by natural selection, getting to spread to the whole population. 1) B. / 2) A.

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1) B. Evolution Genetics

Also known as population genetic, evolutive genetics studies the frequency and distribution of allelels in different populations, and changes -mutations- that drive them to evolve.

2) A.

  • Mutations are changes that occur in DNI nucleotide sequences that introduce new variants.

  • Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.

  • Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population.

  • It can act favoring an allele or against it, according to how it affects the fitness of individuals.

  • Natural selection is the result of the phenotype-environment interaction which determines gene destiny in space and time.

  • In many cases adaptations, resulting from natural selection, can be correlated to environmental factors or selective pressures applied by other organisms or habitats.

  • The selective agent is the environmental trait that determines the differential survival of the phenotypic classes.

  • The environment influences the probability that each genotype passes its gametes to the next generation.

In the exposed example,

  • The environmental pressure is the antibiotic.

  • This pressure is modeling the bacteria phenotype.

  • A mutation in the genetic sequence was produced and made bacteria more resistant to the antibiotic.

  • Hence, the mutation increased the fitness or aptitude of bacteria.

  • Natural selection favors the mutation for being beneficial for the population.

  • Because the mutation sets, it can spread to the whole population, making all cells resistant to the antibiotic.

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