DNA Mitosis Meiosis

The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called

• telophase

• metaphase

• anaphase

• prophase

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A typical human cell contains 46 chromosomes. After mitosis and cell division, each of the two new cells formed from the original cell

• gets 23 chromosomes

• grows new chromosomes from existing DNA

• gets a complete set of 46 chromosomes

• none of the above

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As a result of mitosis, each of the two new cells produced from the original cell during cytokenesis

• receives a few chromosomes from the original cell.

• receives an exact copy of all the chromosomes present in the original cell.

• donates a chromosome to the original cell

• receives exactly half the chromosomes from the original cell.

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In plant cells, cytokineses occurs when

• the chromosomes make exact copies of themselves.

• spindle fibers are formed.

• osmotic pressure is low.

• a new cell wall forms.

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Mitosis is a process by which

• a DNA is replicated.

• cytokenesis occurs.

• cells grow in size.

• a cell's nucleus divides.

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When crossing-over takes place, chromosomes

• mutate in the first division.

• produce new genes.

• decrease in number.

• exchange corresponding segments of DNA.

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Which is the number of chromosomes in a haploid cell?

• 1N

• 2N

• 3N

• 4N

Which event occurs during meiosis II but not during meiosis I?

• Cytokenesis occurs after the final phase.

• Haploid number of chromosomes line equator.

• Sister chromatids are pulled to opposite poles.

• Spindle apparatus forms inside the cell.

Which are the two main parts that make up a chromosome?

• DNA and protein

• DNA and RNA

• RNA and phosphate

• Sugar and phosphate

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NGSS.HS-LS3-1

Which base always base pairs with guanine?

• Adenine

• Cytosine

• Thymine

• Uracil