1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
3 years ago
12

Which of the following is NOT a mechanism to prevent oxygen from entering the environment of nitrogenase? Group of answer choice

s Reduction of iron to prevent oxidation Protective proteins sequestering the nitrogenase Using specialized cells to sequester nitrogenase Separating oxygenic photosynthesis and nitrogen fixation temporally
Biology
1 answer:
Margaret [11]3 years ago
5 0

Answer:

Reduction of iron to prevent oxidation.

Explanation:

Bacteria has several mechanisms to protect the enzyme nitrogenase, one of them involves the increase of their metabolism to reduce the oxygen availability.  

Besides this mechanism, there is also a conformational protection. This involves an interaction with FeSII protein, a ferredoxin. This protein is found as a homodimer that contains a 2[Fe-S] cluster, so reduction of Fe is not one of the mechanisms.  

You might be interested in
All of the types of rock make up the lithosphere except
mel-nik [20]
Striated. But the lithosphere is made up of metamorphic, sedimentary, and igneous 
7 0
3 years ago
Explain how genes are expressed for a particular reason
ozzi

Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off.

The turned on genes are then first transcribed into messenger RNA by the process of Transcription.

Then the mRNA is Translated into protein by the process called Translation.

This is how the specific genes are expressed.

8 0
4 years ago
Explain what over utilisation means
Nikolay [14]
(a) very frequent use of something so that it stops being effective; an over-use.
6 0
3 years ago
the fertilization of ovules from plant Q by pollen from plant R results in the productions of seeds. What percent of the genes i
Helga [31]

Answer:

The correct answer is - zero or 0%.

Explanation:

The fertilization in flowering plants takes place by fusing the pollen of one plant or flower with the ovum of another plant or flower of the same species normally and form a zygote. The zygote gets an equal amount of genetic material from both parent plants by the process f exchange of the genetic material.

The ovum or the egg cell of the plant is considered as the mother and the mother is responsible for the chloroplast And mitochondria of the progeny so in this case, the ovum and egg cell comes from the only plant Q thus, the percentage of chloroplast genes provided via Plant R is 0%.

6 0
3 years ago
Segments of DNA that contain the code for specific proteins are called _____. A.nucleotides
ivanzaharov [21]
Segments of DNA that contain the code for specific proteins are called genes
4 0
3 years ago
Other questions:
  • 20 pts! And brainliest if i have enought pts AND u answer in 6 min
    6·2 answers
  • Jamaal has to make an important phone call. unfortunately, his cell phone is not charged and he has to use his landline, which d
    15·1 answer
  • A reason given by scientist as to why viruses are not considered living organiss is that
    6·1 answer
  • Throughout the week,Emma reads 0.5 hour o Monday,Wendnesday,and Friday.She also reads 0.75 hour on Tuesday and Thursday.How many
    8·1 answer
  • What are sublimation and deposition? Give an example of each
    14·1 answer
  • Which of the following is TRUE about sexual reproduction? Please choose the correct answer from the following choices, and then
    10·1 answer
  • Radiometric dating of a sedimentary rock sample shows an age of 1.5 million years. What conclusions can be drawn from this data?
    6·1 answer
  • Select the correct layers.
    13·1 answer
  • What are “goblet cells” and in what type of epithelial tissue are they most commonly found​
    14·1 answer
  • Importance of natural resources at least 4 points please​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!