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saul85 [17]
3 years ago
5

A stream of waters holds thriving bacteria. If drought conditions caused the stream to dry up, how would the bacteria most likel

y respond to survive?
Biology
2 answers:
Umnica [9.8K]3 years ago
6 0
No because the bacteria thrives of of its natural environment
USPshnik [31]3 years ago
3 0
Certain bacteria can produce something called an endospore, which is a spore that contains DNA, cytoplasm, and a tough outer coating. They are only produced under times of stress when conditions are much less than ideal (ex. extreme heat/cold, drought, extreme radiation, lack of nutrients). Once conditions return to normal, the endospore returns to its bacterial form. Perhaps this is the answer?
You might be interested in
Two autosomal genes, J and K, are 60 map units apart. You perform the following testcross: J K / j k x j k / j k. At what freque
Dmitry [639]

Answer:

  • J K / j k = 20%
  • j k / j k = 20%
  • J k / j k = 30%
  • j K / j k = 30%                

Explanation:

To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.

So, en the exposed example:

  • J and K are autosomal genes
  • J and K are separated by 60 M.U.
  • 60 M.U. means that there is 60% of recombination.

Cross)             J K / j k                    x                  j k / j k

Gametes) JK  Parental                                     jk, jk, jk, jk

                jk   Parental                                  

                Jk   Recombinant                          

                 jK   Recombinant

One map unit equals 1% of recombination frequency. This means that every 100 meiotic products, one of them is a recombinant one.

1 M.U. -------------- 1% recombination

60 M.U. ------------ 60% recombination

                              30% Jk  +  30% jK

100 M.U. - 60 M.U. = 40 M.U.

40M.U.--------------40 % Parental (Not recombinant)

                            20% JK   +   20% jk

Punnet Square)           JK       jk      Jk      jK

                          jk     JK/jk   jk/jk   Jk/jk   jK/jk

J K / j k = 20%

j k / j k = 20%

J k / j k = 30%

j K / j k = 30%                                

3 0
2 years ago
The concept of reproductive isolation relates more toward genetic____ to distinguish between species.
liq [111]

Answer:

similarities

Explanation:

The concept of reproductive isolation relates more toward genetic similarities to distinguish between species. The barriers prevent closely related species living in the same geographical area from interbreeding. They help to keep each species distinct from the others.

3 0
3 years ago
Describe how amoebas obtain food?
monitta
Amoeba acquires it food by endocytosis, that is, a small region in the plasma membrane which ultimately forms a intra-cellular membrane-bound vescicle. It engulfs it food using its pseudopodia (temporary protrusion of the surface of the amoeboid cell used for feeding and movement) and forms a vacuole around it. When the food is already trapped inside, it releases a digestive enzyme to digest it. Intake of liquid particles is pinocytosis (cell drinking) while intake of solid particles is phagocytosis (cell eating).
7 0
3 years ago
How can water intake affect the volume and concentration of urine?
Alchen [17]
More water means more pee (theoretically). Pee is actually just garbage materials from the body (toxins). These color the urine. The more you drink, the more you have to pee and just pee clean because all toxins are out, or you have more water to take out the toxins, having less of it per let's say 0.5 l
3 0
3 years ago
Pitch depends on how fast or slow the object vibrates. True Or False
zalisa [80]

Answer: False

Explanation: Pitch does not depend on how fast or slow an object vibrates.

6 0
2 years ago
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