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ollegr [7]
3 years ago
15

What are thebacteria called that requires a constant supply of oxygen in order to survive

Biology
1 answer:
andrezito [222]3 years ago
8 0

Obligate aerobes Is what I believe the answer would be.




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The following F2 phenotypic data was obtained from a Drosophila testcross using an F1 offspring. Assume red eye and brown body a
dmitriy555 [2]

Answer:

The genotype of the F1 was wy+/w+y.

Explanation:

One of the given options has a typo: the red eye-brown body offspring count should be 56 instead of 561.

<u>We have two genes with two alleles each:</u>

Red eyes (w+) is dominant over white eyes (w).

Brown body (y+) is dominant over yellow body (y).

The phenotypes of the F2 tesulting from a test cross (F1 x wy/wy) are:

  • wy+/ey (white-eye, brown body): 670
  • w+y/wy (red-eye, yellow body): 650
  • wy/wy (white-eye, yellow body): 38
  • w+y+/wy (red-eye, brown body 56

If the genes w and y are linked, two phenotypes in the F2 will be much more abundant than the other two. Recombination during meiosis is a rare event, so the most abundant phenotypes are the parentals (the ones present in the F1 parent).

Every individual in the offpsring has a <em>wy</em> chromosome, as this was the gamete inherited from the test cross individual.

In this case, the most abundant gametes are wy+ and w+y, so the genotype of the F1 was wy+/w+y.

Notice how when recombination occurs in the F1 parent, the recombinant gametes appear: wy and w+y+, which are the less abundant in the F2 progeny.

8 0
3 years ago
Which of the following is NOT a function of cardiovascular system?
Jet001 [13]

Answer:

c.building immunity towards diseases

3 0
2 years ago
Which Of The Following Is Made Of Eukoryotic Animal Cells?
madam [21]

From the options, I would say it would be option B.

Answer: Lactobacillus

This kind of cell would be considered a friendly cell, a cell that would protect your body. But, it's more into animals then anything else. But, there's all kind of these kind of cells, that's why they can be into any kind of animal and human. Hope this helps.

7 0
3 years ago
Read 2 more answers
The qrs complex is associated with ________. the qrs complex is associated with ________. depolarization of the ventricular sept
Zepler [3.9K]

In a typical ECG (Electrocardiogram) the first wave obtained is P wave; The P wave represents the depolarization of the atria. After this, the QRS complex is formed. The QRS wave represents the depolarization of the ventricles.  During the depolarization phase, the ventricles contracts and pushes the blood into the atria. Hence, the correct answer is depolarization of the ventricles.

3 0
3 years ago
A cell with a 3.5% solute concentration is __ to a solution with 1.5% solute concentration.
klemol [59]
Hypertonic would be the correct answer, there is more solute making the cell let out more water, shrinking the cell, therefore being hypertonic.
4 0
3 years ago
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