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notka56 [123]
3 years ago
10

Ions are defined as _____. atoms that have lost or gained an electron and have a charge. atoms that are bonded to other atoms of

the same element neutral atoms nuclear atoms
Biology
1 answer:
MrMuchimi3 years ago
8 0

Answer: Ions are defined as atoms that have lost or gained an electron and have a charge.

Explanation: Ions are charged atoms. Ions can be negative or positive. When an atom looses one or more electrons, it becomes positively charged and a positively charged atom is called a cation. When an atom gains one or more electrons it becomes negatively charged and a negatively charged atom is called an anion.

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In DNA fingerprinting explain how DNA moves through the gel
Zielflug [23.3K]

Answer:

B. The smaller DNA pieces travel farthest towards the positive end of the box

Explanation:

Gel-electrophoresis technique is a technique which is used to separate the fragments of DNA based on their size. The technique is employed in the DNA fingerprint analysis.

The DNA samples are loaded on one side of the gel and when an electric current is applied, the DNA moves from the wells towards the electrodes.

The DNA is a negatively charged molecule which travels through pores in the gel and reaches towards the electrode with positive charge. The smaller the size of the DNA fragment, the faster it moves.

Thus, Option-B is correct.

3 0
3 years ago
Two students studying physiology taste a known "bitter" substance, and both report sensing bitterness. They then sample another
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Answer:

Student A has a protein receptor capable of detecting a bitter molecule found in that substance, whereas student B lacks that particles protein receptor

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Tongue contains different types of taste buds and taste receptors that helps to distinguish between the different types of food. The receptors are mainly responsible for the taste detection. The student B is unable to taste the bitter molecule because they lacks the receptor.

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3 years ago
Living organisms can incorporate ________ into their metabolism.(1 point)
Dmitrij [34]

Answer:

nitrates

Explanation:

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3 years ago
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