From prophase through metaphase of mitosis, each chromosome has 2 DNA molecule(s), while from anaphase through telophase of mitosis, each chromosome has one DNA molecule.
Explanation:
Mitosis is a process in which 2 identical daughter cells are formed in which DNA gets split into two sets of chromosome.
Mitosis occurs in four phases: Prophase, metaphase, Anaphase and Telophase.
After the G2 phase the DNA amount increases and get ready for the division here sister chromatid are seen not chromosome.
In metaphase the chromosome align at the equatorial plate and readied to separate the sister chromatids easily. Each chromatid contains 1 DNA molecule, in this phase two sister chromatids are there so 2 molecules of DNA are present.
In Anaphase the sister chromatids are pulled towards the opposite ends. Each cell receives one chromatid which is now 2 chromosmes. So one chromatid will have one DNA molecule.
<span>b. pain
Pain is one of the sensory functions that receptors in the skin can detect.
Others are:
Touch
Sight
Taste
Odor
Hearing
These sensory receptors receive information and deposit them to sensory neurons to pass to the interneurons which then interprets the information and process a proper response and sends it to the motor neuron.
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Oil, wood??? I'm confused about the question
1) The first reactant is incomplete.
2) The reaction is a combustion reaction and it is easy to infere that it is the combustion of the alkane with 3 carbons.
3) The general chemical formula of the alkanes is

4) Hence the equation is:

5) The name of the alkane is propane, so the word equation is:
propane + oxygen → carbon dioxide + water
6) The equation is unbalanced. This is the balanced equation:

7) It is, as the combustion of any hydrocarbon, a redox (reduction-oxidation) reaction, where the carbon is oxidized and the oxygen is reduced.
8) This kind of reactions release a lot of energy.