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3 years ago

When viewing a cork through his homemade microscope, Robert Hook discovered small compartments that he called _____.

Biology

2 answers:

LuckyWell [14K]3 years ago

6 0

He called the small spaces cells, reminding him of the small rooms in monasteries.

Nesterboy [21]3 years ago

4 0

Answer:

Option (2)

Explanation:

Robert Hook was the first person who identified the presence of a cellulose type of structure in plants. He observed some small pores when he was looking at a cork using his homemade microscope. These pores appeared to be in small compartments which are commonly known as cells. These cells were found only in plants. These are considered to be the microscopic structures that are not visible with our naked eye.

Thus, the correct answer is option (2).

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Explanation:

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Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. In meiosis, the number of chromosomes (2n) is halved to 23 chromosomes (haploid number)through meiotic divisions, producing 4 haploid (n) germ cells or gametes (sperm or eggs), each containing half the number of chromosomes as its parent cell.

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homologs pair off into bivalents
At crossing over: the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined in prophase I forming bivalents; tetrads are formed.
Spindle fibers from centrioles join sister chromatids together at their centromeres in metaphase I, pulling them to the equator of the cell;
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In Meiosis II...

Later, in prophase II, the nuclear envelope disintegrates and mitotic spindle fibers are formed
independent assortment occurs. in metaphase II of meiosis: spindle fibers attach to centromeres, chromatids align independently at the equator. Genes segregate independently into new combinations as sister chromatids are pulled apart by their centromeres in anaphase II
in telophase II the cells' nuclei and membrane are then formed with each containing the haploid number (n)
Following the formation of gametes in the last stage, randomized fertilization occurs in sexual reproduction sperm cells fertilize an ovum to form a zygote. This occurs randomly by chance, to result in a complete set of chromosomes 2n, that is a novel combination of half each parent's number of chromosomes

Learn more about mitosis at brainly.com/question/4303192

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

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