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masha68 [24]
3 years ago
6

While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid wi

th double strands and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, what conclusion can the scientist draw regarding this nucleic acid?
a. The nucleic acid is RNA and would be found in the cytoplasm.
b.The nucleic acid is RNA and would be found in the cell wall.
c. The nucleic acid is DNA and would be found in the cytoplasm.
d. The nucleic acid is DNA and would be found in the cell’s nucleus.
Biology
1 answer:
saveliy_v [14]3 years ago
4 0
While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid with double strands and <span> contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, the scientist can conclude that </span>" The nucleic acid is DNA and would be found in the cell’s nucleus."
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Explanation:

Meiosis is a cell division that forms four daughter cells from one parent cell as two sequential division meiosis I and meiosis II do not include any DNA replication between them. Crossing over during prophase-I of meiosis-I includes the exchange of genetic segments and occurs between the homologous chromosomes. It produces new gene combinations in the daughter cells which were otherwise not present in the parent cell.

Since there is no DNA replication between meiosis I and meiosis II, the daughter cells have half the number of the chromosomes compared to the parent cell. This occurs as homologous chromosomes move towards the opposite pole during anaphase I.

Therefore, a parent cell with 80 chromosomes will make a total of 4 daughter cells by meiosis. Each daughter cell would have 40 chromosomes. These daughter cells would have some new gene combinations and would be genetically dissimilar among themselves.  

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