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Georgia [21]
3 years ago
9

6) When DNA is copied, sometimes a new, incorrect, base pairing appears within the structure of a new DNA molecule replacing ori

ginal base pairs. This mistake is called a base-pair
A) deletion.
B) insertion.
C) institution.
D) substitution.
Biology
2 answers:
Jet001 [13]3 years ago
8 0
It's D. Substitution
Lostsunrise [7]3 years ago
8 0

Answer:

D) substitution.

Explanation:

Substitution mutations are those in which one base pair is replaced by another base pair; they are called transition when substitution occurs between bases of the same class, purine to purine (A - G) and pyrimidine to pyrimidine (T - C); and transverse, when the substitution is between bases of different class, purine for pyrimidine and pyrimidine for purine.

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Answer:

D. physical weathering

Explanation:

The geological process that initiates and leads to the breaking of the rocks is termed as the physical weathering. In this process, the chemical composition of the rocks do not undergo any change. The process of breaking of the rocks is both gradual and sudden. The movement of the earth, the change in the temperature, the rise and fall of the water level, the presence of ice rocks for longer duration of the time, and the melting of the snow are some of the reasons which causes the physical weathering.  

The phenomena in the given expert represents the physical weathering.

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Which division in the plant kingdom consists of plants that lack xylem and phloem? A) flowering vascular plants. B) nonflowering
Zepler [3.9K]
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2 years ago
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2 years ago
Which one of the following statements is true? A. Voluntary hyperventilation results in acidosis. B. Emphysema directly impairs
AlekseyPX

Answer:

The correct answer is option E.

Explanation:

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Emphysema directly impairs exhalation more than it directly impairs inhalation. Emphysema refers to a lung disorder, which leads to shortness of breath. In the individuals suffering from the condition, the air sacs in the lungs, that is, alveoli get damaged.  

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