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iragen [17]
3 years ago
8

Compare and contrast the composition of DNA and RNA DNA and RNA both have________ DNA has _______________,but RNA has __________

_____insteasd​
Biology
1 answer:
Delicious77 [7]3 years ago
5 0

Answer:

1st blank: four nitrogenous bases each. (cytosine, adenine, and guanine)

2nd blank: DNA had thymine

3rd blank: RNA has uracil

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True or False? Only some of our human needs (food, materials, etc.) come from natural resources. *
Misha Larkins [42]

Answer:

false

Explanation:

your body needs a lot on food, materials, etc. from natural resources

3 0
4 years ago
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g when hydrogen is present and the citric acid cycle is active, the ph of the mitochondrial matrix is
11111nata11111 [884]

Answer:

The pH remains constant

Explanation:

The pH value of Mitochondrial matrix = 7.8 while the pH of the intermembrane space of the mitochondria = 7.0–7.4

The presence of the hydrogen atoms makes the mitochondrial matrix acidic and hence reduced the pH value but the pH of inner and outer matrix is maintained equal to each other thus as the H+ ion increases, the base concentration increases thereby pushing H+ to the inter membrane space and hence producing ATP.

6 0
3 years ago
Which part of the influenza virion facilitates interaction between the virus and the to-be-infected eukaryotic host cell?
Radda [10]
The choices are:
<span>A.  Matrix protein
B.  Hemagglutinin
C.  An ion channel
D.  Neuraminidase
</span>
The right answer is B. Hemaglutinin

Explanation:
Haemagglutinins are triangular rods. They allow the attachment of Influenzaviruses on the target cells of the respiratory tree. In the presence of red blood cells, a haemagglutination (liquid medium) is obtained.
<u>About the other components of Influenza virus:</u>Neuraminidase is a mushroom-shaped spike composed of a tetramer consisting of 4 subunits of a single glycoprotein. At 37 ° C, the neuraminidase destroys the bonds (virus - cells) and thus allows the release of neoformed virions in the external environment: it is elution.
The membrane protein M and the protein subunits of the nucleocapsid are antigenic and are the basis of the classification of Influenzavirus types A, B and C. They induce the synthesis of non-protective antibodies fixing the complement.
7 0
3 years ago
In the pedigree that is shown, which represents Irene's allele combination?
Greeley [361]

The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is X^{H} X^{H} .

4 0
3 years ago
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Which of the following should NOT be added to a compost heap? A) potato peels B) bones C) banana skins D) shrub clippings​
juin [17]

Answer:

D shrub clippings

Explanation:

this is because they don't decompose like the other choice and are not rich in nutrients

6 0
3 years ago
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