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never [62]
3 years ago
6

Imagine that you are studying a newly discovered bacterium from a hot springs in Yellowstone National Park. When you examine the

nucleotide composition of this organism, you find that 10% of the nucleotides in its DNA are adenine (A). What percentage of nucleotides are guanine?
Biology
1 answer:
Ne4ueva [31]3 years ago
5 0

Answer:

40%

Explanation:

In order to make this calculation it is necessary to take into account the concept of base complementarity where it is known that the 2 strands of DNA bind together by base complementarity in which adenine binds to thymine and guanine to cytosine, this reason if they tell us that 10% is adenine the other 10% is thymine, so the rest will be guanine and cytosine (80%), so the percentage of guanine will be 40%.

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Labels to the histological section of a sublingual gland by clicking and dragging the labels to the correct location.
REY [17]

Clicking and dragging the labels to the appropriate spot on a sublingual gland's histological slice will rely on Acinus mucous

Mucous acini, which are typically tubular and only contain mucous cells. Serous and mucous cells coexist in mixed (or sero-mucous) acini. In commonly processed tissue sections, the serous cells are "pushed" into a peripheral cap known as a serous Demilune (Demilune is French for half-moon). Mucous acini, which are typically tubular and only contain mucous cells. Serous and mucous cells coexist in mixed (or sero-mucous) acini. Serous cells are "pushed" into a peripheral cap known as a serous Demilune in routinely prepared tissue sections by swollen mucous cells (Demilune is French for "half-moon").

Learn more about Acinus mucous here.

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3 0
2 years ago
What are two things arer cilia used for
Anit [1.1K]

Answer:

Locomotion and feeding

trapping dust

Explanation:

Paramecium is an organism that belongs to kingdom protoctista. They swim in water through beating of the cilia. They also feed on tiny organisms that are swept into the oral groove through beating of the cilia.

During gaseous exchange in mammals, along the nasal passage are cells with cilia that trap dust particles and beats to move mucus and dust trapped up to the larynx.

6 0
3 years ago
wegener proposed that mountains form when continents Collide, crumpling up their edges. was wegener's idea about how mountains f
ale4655 [162]

Yes it was. Since he believed in continental drift, he believed that the continents moved ever so slowly towards each other and away from each other. Therefore whenever the two continents collide due to continental drift they form mountain ranges.

7 0
4 years ago
Carl Woese proposed the domain classification a. using shape to classify microbial species b. to divide the single-celled organi
goldfiish [28.3K]

Answer:

c. to account for two major and distinct prokaryotic groups in addition to eukaryotes.

Explanation:

Microbiologist Carl Woese compared the ribosomal RNA sequence of the small subunit of RNA. Various organisms have structurally different small subunit of the ribosomes. According to Woese the molecular composition of rRNA in closely related organisms should be more similar than in distantly related organisms. He analyzed the 16S rRNA of various organisms and observed that there are two distinct groups of prokaryotes. He divided the prokaryotes among two domains: Bacteria and Archaea. He placed all the eukaryotes in the domain Eukarya.

4 0
4 years ago
Cyclic AMP phosphodiesterase is an enzyme that catalyzes the conversion of cyclic AMP to a different molecule. Which of the foll
Natalija [7]

Answer:

With the inhibition of cyclic AMP phosphodiesterase in that cell, Kinase A will not be inactivated, so phosphorylase kinase will remain active.

Explanation:

Phosphodiesterase is an enzyme that has the function of hydrolyzing cAMP by converting it to AMP. As a result, a protein called kinase is inactivated and lipids break down in fat metabolizing cells. CAMP is a cellular messenger.

Cyclic AMP phosphodiesterase, in turn, is an enzyme that catalyzes the conversion of cyclic AMP into a different molecule. as a result, a molecule called kinase A is deactivated. However, if inhibition of cyclic phosphodiesterase AMP in a muscle cell stimulated by adrenaline, Kinase A will not be deactivated, so phosphorylase kinase will remain active.

6 0
3 years ago
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