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damaskus [11]
3 years ago
8

Nitrogen is an important element needed for plant growth. What living organism plays a big role in adding atmospheric nitrogen t

o the soil?
Biology
1 answer:
kompoz [17]3 years ago
7 0
Nitrogen fixation, N2 --> NH3+, is not something that plants to by themselves but some plants have bacteria that does this. I believe that pea plants have these, but I'm not 100% sure. 
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16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to deter
podryga [215]

The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

<h3>What is a recessive phenotype?</h3>

A recessive phenotype is a phenotype which expresses the recessive trait of a gene.

The recessive phenotype is always h0m0zygous for that triat to be expressed.

In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:

  • p^2 + 2pq + q^2 = 1

where;

  • p^2 is the h0m0zygous dominant phenotype frequency
  • 2pq is the heterozygous phenotype frequency
  • q^2 is the h0m0zygous recessive phenotype frequency

Therefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

Learn more about recessive phenotype at: brainly.com/question/22117

8 0
2 years ago
For the growth curve to continue increasing, which of these must occur?
emmasim [6.3K]
Good health must occur.
7 0
3 years ago
When a cell makes waste the waste moves out of the cell. Why
Alex777 [14]
Because most waste produced in the cell is toxic when it accumulates.

Hope this helps!
5 0
3 years ago
TRUE Or false NO WEIRD ANSWERS OR LINKS OR YOU WILL BE REPORTED.
Sedbober [7]

Answer:

True. From what I know it's because many different organisms are on the cladogram.  

:/

explanation:

6 0
3 years ago
Acylhomoserine lactones used in quorum sensing regulate their own synthesis by a(n) _________ system. Multiple Choice riboswitch
zmey [24]

Acylhomoserine lactones used in quorum sensing regulate their own synthesis by an autoinduction system.

  • Numerous bacteria use acyl homoserine lactones (acyl-HSLs), significant intercellular signaling molecules, to track the density of their population for quorum-sensing control of gene expression. The LuxI family of proteins produces the signals in question.
  • A lot of proteobacteria use quorum-sensing signals from acyl-homoserine lactones.
  • Cells create a baseline amount of signal at low population densities, and when enough signal has accumulated in the environment, it binds to its receptor and activates quorum-sensing-dependent genes.

learn more about Acylhomoserine here: brainly.com/question/14452252

#SPJ4

7 0
2 years ago
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