Answer:
A karyotype is the individuals collection of chromosomes
you can use the individuals karyotype to determine if a fetus has down syndrome by looking at chromosome 21. If the fetus has an extra copy of chromosome 21, it will have down syndrome.
Explanation:
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Every one except the 4th one just did it on edgeunity
Energy can’t be created or destroyed.
Answer:
Buffers are chemicals that help a liquid resist changing its acidic properties when other chemicals are added that will normally cause a change in these properties.
