Explanation: A chromatid is one of the two strands that form when a chromosome duplicates itself during cell division. Before DNA replication, the somatic cell has 46 chromosomes. Subsequently after the DNA replication, each chromosome will possess two physically attached sister chromatids, the chromosomes will condense to form compact structures (though it'll still be made of two chromatids). Thus, after replication, there would be 92 chromatids.
An electric force field is provided by an energy source such a cell or a battery. A potential difference is created when a conducting wire is connected across the two terminals of the battery. This creates an electric force field which pushes the electrons from one towards the another. The flow of electrons constitutes an electric current.
The inside of the membrane changes when the ratio of sodium to potassium ions changes. If there's more sodium then the charge is positive and if there's more potassium then the charge is negative.
The correct answer is: place the pulse oximeter in the baby's toe.
Explanation:
A pulse oximeter is a non-invasive medical device.
It is used to determine the concentration of oxygen-linked haemoglobin flowing in through the peripheral arterial blood.
It is generally used in those parts of the body where the skin is thin, like the finger tip of hand, toe tip or the ear lobe.
The difference in the absorbance of infrared light by the haemoglobin molecules linked to oxygen and the haemoglobin molecules not linked to oxygen is used to determine the concentration of oxygen in the peripheral arterial blood.
As the child has a difficulty in breathing so, it is obvious the amount of oxygen that all its body cells receive is far less than the amount of oxygen needed by them.