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UNO [17]
2 years ago
11

Which process do you think offers a greater chance of nondisjunction—mitosis or meiosis? explain your answer

Biology
1 answer:
mario62 [17]2 years ago
8 0
Answer: Nondisjunction means that a pair of homologous chromosomes has failed to separate or segregate at anaphase so that both chromosomes of the pair pass to the same daughter cell. This probably occurs most commonly in meiosis, but it may occur in mitosis to produce a mosaic individual.
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Identify two examples of environmental factors that may impact salivary peroxidase activity. Describe how each of the environmen
charle [14.2K]

Answer:

Examples of environmental factors that may alter salivary peroxidase include periodontitis, oral hygiene, presence of heavy metal ions, bacteria (e.g., <em>Streptococcus gordonii</em>), anaerobic conditions, temperature, pH, etc.

Explanation:

Peroxidase is an enzyme found in all aerobic cells that act to convert toxic hydrogen peroxide (H2O2) into dioxygen (O2) and water (H2O). This enzyme plays an important non-specific defensive role against proliferating micro-organisms that cause periodontal diseases such as periodontitis, which is a serious inflammatory disease affecting the tissues around the teeth. The most common environmental factors influencing the development of periodontitis include oral hygiene, smoking and age. In this regard, it has recently been shown that there is a positive correlation between salivary peroxidase activity and periodontal health, especially in non-smoker individuals. In consequence, it is expected that smoker individuals are more prone to suffer periodontal diseases by reduction of the salivary peroxidase levels.

7 0
2 years ago
What is the function of NADPH and ATP in the Calvin cycle?
yuradex [85]

Answer:

The correct option is A. They provide the energy required to build high-energy sugars.

Explanation:

Calvin cycle can be described as the series of dark reactions of the process of photosynthesis.

During the Calvin cycle, carbon dioxide is reduced to glucose. The molecules of NADPH and ATP play an active role in this reaction to occur. The molecules of ATP serve as a source of energy. Whereas, the molecules of NADPH serve as a reducing agent. Electrons are added by NADPH so that carbon dioxide gets converted into glucose.

4 0
3 years ago
Which type of limiting factor would the corona virus be considered?
____ [38]

Explanation:

Density dependent could limit the corona virus

3 0
3 years ago
Read 2 more answers
What are two things missing from this food web??
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Artic Char (secondary Con.)
Capelin (tertiary Con.)
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Polar Bear(Quaternary Con.)

5 0
3 years ago
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