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oksano4ka [1.4K]
3 years ago
7

How does a human end up with an extra chromosome?

Biology
1 answer:
Burka [1]3 years ago
8 0

Answer:

It’s a change in gentic cells, or are missing extra chromosomes

Explanation:

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In the laboratory, you have a beaker containing 100 milliliters (mL) of NaOH solution at pH = 13. Into this beaker, you carefull
romanna [79]

Answer:

d. The pH of the beaker`s contents will decrease.

Explanation:

Since the new substance is an acid and has a very low pH, that is 1. it will reduce a little bit the pH of the original base (NaOH). Some ions of hydrogen of the acid are going to react with the hydroxyl group of the sodium hydroxide to form water.

Since the differences of the volume is big, only a small part of the base is going to be neutralize, but at the end, the final pH of the solution is still going to be  a base.

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3 years ago
Who was the first to study genetics? Before Gregor Mendel.
lutik1710 [3]
Augustinian friar Gregor<span> Johann </span><span>Mendel.
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4 0
3 years ago
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_____ provides a mechanism by which the chromosome number may be kept the same from one generation to another. Mitosis Meiosis N
Setler [38]
Answer: mitosis.

During DNA replication a pair of chromosomes of from one cell genders two duplicated chromosomes (so the number of chromosomes is duplicated), then in the mitosis process the cell split into two identical cells each with half of the duplicated chromosomes, so at the end one cell with two chromosomes form two cells each with two chromosomes. So, the new generation of cells has the same number of chromosomes.
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What trait does a gecko and a palm tree share?
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A gecko, fly agaric (fungus), and a palm tree all have cells with nuclei, but a gecko and fly agaric are both heterotrophic (making them more closely related) while a palm tree is a photosynthetic autotroph.
4 0
3 years ago
HELP ASAP!! Which atom is present in everything that is alive or ever was alive? Provide facts.
gregori [183]

Carbon is the atom, which is necessarily find in the living organism.

All the living organisms are made up of biomolecules. All the biomolecules are organic compounds. The substance cannot be consider as living, if it lacks nucleic acids. There are two types of nucleic acids DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), both have a structure made up of carbon rings and chains.

Other than nucleic acids, proteins, enzymes, hormones etc are also made up of carbon. So, all the living cells, or dead remain of organism must have carbon atom.

Hence, the correct answer is option D. carbon.

8 0
3 years ago
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