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Alina [70]
3 years ago
15

A reseacher was studying mutations in bacteria.he found that certain bacteria had changes in their dna that allowed them to be r

esistant to antibotics.this research is an example of. The mutation will lead to
Biology
1 answer:
AleksAgata [21]3 years ago
3 0

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).

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What could happen if negative feedback inhibition did not signal the pancreas to stop producing insulin and blood sugar levels d
SCORPION-xisa [38]

Answer:

If the pancreas did not stop producing insulin and blood sugar levels did not dropped to normal levels so it causes a disease called hyperinsulinemia. This disease causes heart disease and cancer in the body. With increased levels of insulin makes the cells resistant to harmone which means there is no effects of harmone on the cell and the body didn't perform its functions properly. The increase in insulin levels increase the absorption of sugar from the blood and the person gets more weight which is not good for health.

5 0
4 years ago
What is the atomic number, number of neutrons, and the mass for a neutral oxygen atom?
vaieri [72.5K]

Answer:

Atomic Number: 8

Number of neutrons: 8

Mass of neutrons: 16 (AMU if you want the units)

Explanation:

The answer for both the number of neutrons and atomic number is on the top

The mass is at the bottom

3 0
3 years ago
Read 2 more answers
What r some adaptions that help animals who live in the Alpine biome survive​
neonofarm [45]

The animals that live in the Alpine biome have to have special adaptations to survive in it as this is a biome with very harsh conditions for big portion of the year. The temperatures are very low, the winds are strong, winter lasts for half a year or more, and there's lot of snow. All this has made the animals to develop certain traits to help them survive. Some of those adaptations are:

- thicker and longer fur for better isolation form the outside conditions

- wider paws with denser and tougher skin, helping them to move easier in the snow and avoid frostbite

- larger lungs and nostrils for easier breathing in the high altitudes

- stockier bodies so that heat can be preserved easier

- the ears and tails are small and rounded in order to avoid frost bite

- big portion of them are able to hibernate for several months

4 0
3 years ago
What is the usual source of insulin.​
Arturiano [62]

Answer:

regulates the metabolism

Explanation:

6 0
3 years ago
Two protein kinases, K1 and K2, function sequentially in an intracellular signaling pathway. If either kinase contains a mutatio
Korolek [52]

Answer:

The order must be K2→K1, since the permanently active K1 allele (K1a) is able to propagate the signal onward even when its upstream activator K2 is inactive (K2i). The reverse order would have resulted in a failure to signal (K1a→K2i), since the permanently active K1a kinase would be attempting to activate a dead K2i kinase.

Explanation:

  • You characterize a double mutant cell that contains K2 with type I mutation and K1 with type II mutation.
  • You observe that the response is seen even when no extracellular signal is provided.
  • In the normal pathway, i f K1 activat es K2, we expect t his combinat ion of two m utants to show no  response with or without ext racell ular signal. This is because no matt er how active K1 i s, it would be unable to  act ivate a mutant K2 that i s an activit y defi cient. If we reverse the order, K2 activating K1, the above  observati on is valid. Therefore, in the normal signaling pathway, K2 activates K1.
7 0
4 years ago
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