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aalyn [17]
3 years ago
12

This can occur when part of a population of a species becomes separated from the remainder

Biology
1 answer:
trapecia [35]3 years ago
8 0

Answer:

Geographic isolation

Explanation:

  • Geographical isolation can occur as a result of either an accident or a coincident due to which the a part of the population of a species gets separated from the reminder of the population.
  • As a result of this separation, the separated population is unable to exchange its genetic material with the remainder of the population and thus, with time accumulates novel mutations and this may lead to the formation of a new species and this mechanism is known as allopatric or geographic speciation.
  • Geographic isolation occurs when a geographic barrier occurs due to events such as volcanic eruptions and the populations gets separated.

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Which factor causes the shapes of saturated and unsaturated fatty acids to differ?
lidiya [134]

The answer is option C. Number of double covalent bonds between carbon atoms is responsible for causing different shapes of saturated and unsaturated fatty acids. The double covalent bond causes kink in the unsaturated fatty acids because of which their stacking is disrupted and they become loosely packed. The problem with double covalent bond is that unlike single covalent bond it can't rotate and has almost cis-configuration. This is also the reason behind their liquidity at room temperature.

8 0
3 years ago
DNAase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen
Free_Kalibri [48]

DNAase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen to DNA molecules treated with DNAase?

A) The purines would be separated from the deoxyribose sugars.

B) The pyrimidines would be separated from the deoxyribose sugars.

C) All bases would be separated from the deoxyribose sugars.

D) The two strands of the double helix would separate.

E) The phosphodiester bonds between deoxyribose sugars would be broken.

Answer:

E) The phosphodiester bonds between deoxyribose sugars would be broken.

Explanation:

The purines and pyrimidines of two DNA strands of a DNA duplex are held together by hydrogen bonds. Hydrogen bonds are not covalent bonds. The enzyme DNAase targets the phosphodiester bonds. These are the covalent bonds that join two deoxyribonucleotides of a DNA strand together. therefore, when a DNA is subjected to digestion with DNAase enzyme, the phosphodiester bonds will be broken that hold the pentose sugars of two nucleotides by a phosphate group.

6 0
2 years ago
Which statement best explains why the level of ATP in skeletal muscles changes during exercise?
melamori03 [73]
ATP or the Adenosine Triphosphate is referred to as the basic energy unit of the body. In the case of doing an exercise, what happens is that, the more someone increases his or her activity, the more energy is required and the body should compensate for this need. Therefore, the answer for this would be option D.
8 0
3 years ago
What are stem cells?
Effectus [21]

Answer:

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells

Explanation:

Totipotent (or Omnipotent) Stem Cells.

Pluripotent Stem Cells.

Multipotent Stem Cells.

Oligopotent Stem Cells.

Unipotent Stem Cells.

5 0
3 years ago
Describe how energy and matter move through the environment under both aerobic and anaerobic conditions answer in 1-2 paragraphs
Karo-lina-s [1.5K]

Answer:

6

Explanation:

6 0
3 years ago
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