Answer:
In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.
Explanation:
In diploid (2n) organisms, the homologous chromosomes are the two copies of each chromosome, where one of these homologs is the chromosome from the mother, while the second one is from the father. During metaphase I, the homologous pairs of chromosomes pair together at the middle of the cell. The law of independent assortment, also known as or Mendel's Second Law, states that homologous chromosomes line up in random orientations at the metaphase plate during this period (metaphase I).
Answer: In Spanish
¿Cómo se vuelven resistentes las bacterias a los antibióticos?
R: Las bacterias pueden volverse resistentes a los antibióticos de varias maneras. Algunas bacterias pueden "neutralizar" un antibiótico cambiándolo de una manera que lo hace inofensivo. Otros han aprendido a bombear un antibiótico fuera de la bacteria antes de que pueda causar algún daño. Algunas bacterias pueden cambiar su estructura externa, por lo que el antibiótico no tiene forma de adherirse a la bacteria que está diseñada para matar.
Después de exponerse a los antibióticos, a veces una de las bacterias puede sobrevivir porque encontró una manera de resistir el antibiótico. Si incluso una bacteria se vuelve resistente a los antibióticos, puede multiplicarse y reemplazar todas las bacterias que fueron eliminadas. Eso significa que la exposición a los antibióticos proporciona una presión selectiva que hace que las bacterias sobrevivientes sean más propensas a ser resistentes. Las bacterias también pueden volverse resistentes a través de la mutación de su material genético.
Answer in English :
How do bacteria become resistant to antibiotics?
A: Bacteria can become resistant to antibiotics through several ways. Some bacteria can “neutralize” an antibiotic by changing it in a way that makes it harmless. Others have learned how to pump an antibiotic back outside of the bacteria before it can do any harm. Some bacteria can change their outer structure so the antibiotic has no way to attach to the bacteria it is designed to kill.
After being exposed to antibiotics, sometimes one of the bacteria can survive because it found a way to resist the antibiotic. If even one bacterium becomes resistant to antibiotics, it can then multiply and replace all the bacteria that were killed off. That means that exposure to antibiotics provides selective pressure making the surviving bacteria more likely to be resistant. Bacteria can also become resistant through mutation of their genetic material.
I don't know if this help you at all.
Answer:
decomposers
Explanation:
These are heterotrophic organisms that feed on dead animals and plants, secretions, or discarded parts of living beings, that is, organic matter.
And they break it down into inorganic.
Thus, inorganic substances that can be reused in the process of photosynthesis are returned, recycled, to nature.
The answer that would best complete the given statement above is the term NICHE. Each specie has a role in an ecosystem to make it balanced. And an example of this is when s<span>mall monkeys and squirrels both eat nuts and live in tree tops. Hope this answers your question.</span>
Answer:
The order of genes is- dp-cl-ap
Explanation:
The genes a be mapped on chromosome on the basis of the recombination frequency as the recombination shows that is the genes are linked or not. In genetic mapping, 1 per cent recombination frequency is considered as 1 cM or map distance.
In the given question, the three gene distance are provided on the basis of which the gene can be mapped in the following manner:
1. Take the higher value of gene distance that is 42 m.u and plot them on the line,
2. now place second-highest value on the line that is 39 m.u.
3. The gene will be arranged in the order of dp-cl-ap.
4. dp--³---cl-----------³⁹---------------------ap.
Thus, dp-cl-ap is correct.
