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Lorico [155]
3 years ago
14

Who first identified nucleic acids, and where were they discovered? Friedrich Meischer discovered nucleic acids in blood cells.

Phoebus Levine discovered nucleic acids in plant cells. James Watson and Francis Crick discovered nucleic acids in DNA. Gerardus Johannes Mulder discovered nucleic acids in bacterial cells.
Biology
2 answers:
stealth61 [152]3 years ago
8 0

Answer:

Choice A

Explanation:

AnnyKZ [126]3 years ago
7 0

Answer:

Friedrich Miescher discovered nucleic acids in blood cells.

Nuclein was discovered by Friedrich Miescher in 1869

Explanation

In the somewhat early 1880s Albert Kossel further purified the substance and discovered its highly acidic properties. Then he later discovered the nucleobases. In 1889 Richard Altman creates the term nucleic acid. Friedrich Miescher was the first scientist to ever isolate nucleic acid.

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Simpson's Diversity Index is a measure of diversity which takes into account the number of species present, but does not include
dangina [55]

Answer:

The given statement is false.

Explanation:

In ecology, one of the means of measuring diversity is Simpson's Diversity Index. This index is generally used to count the biodiversity of a habitat. The index considers the number of the present species, and at the same time each species' abundance.

Simpson's index denoted by D determines the possibility that two characters selected abruptly from a sample will fit to a similar species or some classification other than species. When the value of D is 0, it signifies infinite diversity, while when the value is 1 it denotes no diversity. Thus, the bigger the value the lower will be the diversity.

3 0
3 years ago
How does the spread of an airborne pathogen compare to the spread of foodborne and person-to-person pathogens
adoni [48]

Answer:

You must come in contact with the infected air. It spreads slower, and more than one person is usually affected at the same time.

Explanation:

3 0
3 years ago
Calculate ​pH a decrease of one unit on the pH scale means a solution is ten times more acidic. a decrease of two units means th
KengaRu [80]

Answer:

Each unit of decrease has an exponential increase. So if you are looking at an item that has a Ph of 4 and water has a Ph of 7 —-that means it is 10 to the 3rd power more acidic or 1000 times more acidic than water.

Explanation:

4 0
3 years ago
The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well
spayn [35]

Answer:

PFK (protein): cytoplasm only (targeting pathway)

Insulin (protein): ER->Golgi->outside cell

Explanation:

Translation can be described as the mechanism by which a protein is produced through a mRNA.

If a particular protein is to function inside the same cell, then it doesn't need to get any modification so that it can travel outside the cell. Such type of proteins are translated on free cytoplasmic ribosomes and are released directly into the cytoplasm to perform their function. For example, PFK protein.

If a protein has to function outside the cell where it is produced, then it has to be modified. Such type or proteins are translated on the rough ER.  They are then modified in the Golgi complex and then transported outside the cell to the area where they have to function. For example, insulin.

6 0
3 years ago
The amount of matter in the Earth system remains constant over time. The forms and locations of the matter stored within the sys
Burka [1]
The correct answer is all of these.

Matter and energy on Earth are never destroyed or created out of nothing, but just transferred or converted to another form.
 The inorganic matter is transferred to the living things from the physical environment by many biological processes like photosynthesis ( CO2), nitrogen fixation, absorption of the minerals by plant roots and many more.
Matter can then be transferred between different organisms through the food chain.
Eventually, the matter will return to the physical environment when organisms decompose and the cycle will start again.
8 0
3 years ago
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