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ra1l [238]
3 years ago
7

Traits of virus that classify

Biology
1 answer:
dlinn [17]3 years ago
5 0

Answer :Four characteristics were to be used for the classification of all viruses:

Nature of the nucleic acid in the virion.

Symmetry of the protein shell.

 Presence or absence of a lipid membrane.

 Dimensions of the virion and capsid.

Explanation:

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Where does the energy come from to pump protons into the thylakoid space
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Answer:

C) ATP

Explanation:

Energy from light is used by the chloroplast electron transport chain to pump protons across the thylakoid membrane into the lumen of the thylakoid. This creates a proton gradient that is used as a source of energy by ATP synthase.

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In fruit flies, a specific gene mutation causes the wings to become malformed. These wings are called vestigial because they do
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Which kind of exercise targets muscle cells instead of the cardiovascular system to meet the rapid demand for energy?
Fynjy0 [20]

The correct answer is anaerobic exercises. Anaerobic exercises is an intensely done activity, wherein the body’s call for oxygen goes beyond the oxygen source accessible within the body. Anaerobic exercises feeds on the energy sources that are stored in the muscles of the body, which is why it is the exercise that targets muscle cells for maximum demand of energy.

 

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6 0
3 years ago
Virtually all cells in the human body have the same DNA. What’s make some undifferentiated cells differentiated into brain cells
mariarad [96]

Answer:

Changes in gene expression

Explanation:

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These patterns of gene expression are different for each cell, and dictate the identity of that cell. Gene expression patterns are controlled by a variety of factors in the cell that allow tissue-specific expression, such a transcription factors.

This can also be facilitated by another layer of regulation called epigenetics, which literally means "on top of" genetics, and refers to modifications of DNA (and the proteins around it), that can reflect and influence the activity of the genes within.

8 0
3 years ago
What is the main sugar used by cells for energy?
butalik [34]

Answer:

The answer is GLUCOSE.

Explanation:

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The cells oxidize the glucose and convert it to energy in form of ATP, which they use to carry out their life activities.

7 0
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