The correct answer choice should be B.) The population exceeded past its carrying capacity. Hope this helped!
Answer:
Phoebus Levene( 1896, Sagor Russia - Septemeber 1940, New York)
Explanation:
These were developed by Phoebus Aaron Theodor Levene ,he was a russian who studied medicine, with keen interest in organic chemistry.
He migrated to the US in 1891, and started practising medicine in 1892.Due to his strong interest in research he combined research(1894) in molecular structure of sugars with medical practice,But this was cut short when he contracted tuberculosis.
Between 1896- 1906,he collaborated with many nucleic acids and protein exoperts e.g Albrecht Kossel and Emil Fischer to wok on the structure of DNA.And headed the Rockefeller Institute for Medical Research.
He works included :the isolation of Nucleotide-monomers of DNA
:the isolation of D-ribose sugar from ribonucleic acid molecule.(RNA)
Discovery of 2-deoxyribonucleic ,
How the components of Nucleotide(phosphate group,sugars, and organic bases) combined to form nucleotide, and how the latter undergo condensation reaction to form DNA.
Fossil fuels coal<span>, </span>petroleum, and natural gas <span>are our main sources of energy
, these sources gives us energy and producing the vast majority of fuel,</span>electricity<span>, and heat used by people across the globe but cause the global warming and increase the temperature of the earth
hope it helps</span>
The correct answer is: B) recognition of the prokaryotic promoter by RNA polymerase
The similarities between prokaryotic and eukaryotic transcription are that DNA is template used for the mRNA synthesis and that this is process is facilitated by the enzyme RNA polymerase.
One of the difference between this process in eukaryotes and in prokaryotes is the promoter region: eukaryotes contain TATA box and CAT box, while prokaryotes don’t (they have Pribnow box that is similar to the TATA box). Promoter region in prokaryotes is always upstream to the start site, while in eukaryotes it can be downstream.
Answer: Attached below is the missing part of your question
answer
Mutant A
<em>1) Requires tryptophan in the growth medium or from a donor mutant </em>
<em>2) Must form nanotubes to obtain it's required amino acid in this scenario:</em>
Mutant B
<em>1) Requires histidine in the growth medium or from a donor mutant </em>
<em>2) Does not need to form nanotubes to obtain it's required amino acid in this scenario:</em>
Explanation:
<u>Mutant A ( Over produces His and cannot produce Trp ) </u>
1) Requires tryptophan in the growth medium or from a donor mutant ; This is because the Mutant is an auxotroph for tryptophan.
2) Must form nanotubes to obtain it's required amino acid in this scenario:
This is because growth medium of the mutant is supplemented with histidine
<u>Mutant B ( cannot produce His and overproduces Trp </u>)
1) Requires histidine in the growth medium or from a donor mutant :
This is because Mutant B lacks the biosynthetic pathways necessary for histidine production
2) Does not need to form nanotubes to obtain it's required amino acid in this scenario: because the Mutant cell can easily take up the required amount of Histidine from its surroundings.