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vichka [17]
2 years ago
12

How are hydrogen bonds different from covalent bonds ? covalent bonds are organic; hydrogen bonds are inorganic the compounds th

at result from hydrogen bonds contain carbon; those that result from covalent bonds do not hydrogen bonds are weaker than covalent bonds and form between partially charged atoms or molecules the atoms in hydrogen bonds have valence electrons ; the atoms in covalent bonds have valence spaces
Biology
1 answer:
GuDViN [60]2 years ago
7 0
In a discrete water molecule, there are two hydrogen atoms and one oxygen atom<span>. Two </span>molecules<span> of water can form a hydrogen bond between them; the simplest case, when only two </span>molecules<span> are present, is called the water dimer and is often used as a model system</span>
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If a cell has a diploid number of 8 (2n = 8) before meiosis, how many chromosomes will be in each of the four daughter cells aft
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Answer:

The final product is four gametes, two of them with 5 chromosomes, and the other two with 3 chromosomes each.

Explanation:

If nondisjunction occurs during meiosis 1, a pair of homologous chromosomes fail to separate, and one of the daughter cells will have the two chromosomes while the other cell will not get any chromosome from the pair.

If meiosis 1 occurs normally, but nondisjunction occurs in meiosis 2, sister chromatids fail to separate.  

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But in the exposed example, one pair of homologous chromosomes experiences nondisjunction during meiosis I (in the attached file, you will recognize this pair as the red one). The other chromosomes separate as usual. So one of the daughter cells will have one extra chromosome than expected (five instead of four), and the other daughter cell will lack one chromosome (three instead of four). Meiosis II occurs normally. The final result is the formation of four gametes, two of them with 5 chromosomes, and the other two with 3 chromosomes each.

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