SB 2 Quiz 1

What is the outcome when a cell undergoes meiosis?

• 2 diploid cells

• 2 haploid cells

• 4 diploid cells

• 4 haploid cells

Parents can pass on chromosomes to their children that are different than their own when the new gene combinations are created by

• crossing over of sister chromatids during meiosis.

• crossing over of sister chromatids during mitosis.

• crossing over of homologous chromosomes during mitosis.

• crossing over of homologous chromosomes during meiosis.

Which type of cell is created during meiosis?

• skin

• liver

• blood

• sperm

Which of these correctly distinguishes mitosis from meiosis?

• Mitosis occurs in germ cells and meiosis occurs in somatic cells.

• Crossing over takes place in mitosis and not in meiotic cell division.

• Meiosis produces four 2N daughter cells; mitosis produces two 2N daughter cells.

• The number of chromosomes remains the same in mitosis and is reduced by half in meiosis.

A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division increases genetic variation in the daughter cells. Which evidence from the model supports the student's claim?

• Chromosomes pair in step 2.

• Chromatids separate in step 5.

• Chromosomes are replicated in step 1.

• Chromosomes exchange genetic material in step 3.

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

A model of a specific event during meiosis is shown with various possible combinations. Which statement correctly cites evidence from the model to support the idea that meiosis increases genetic diversity?

• Chromosomes can coil during meiosis, creating a combination of alleles that are new.

• Chromosomes can mutate randomly during meiosis creating new phenotypes in the daughter cells.

• Chromosomes can replicate during meiosis, producing additional DNA with which to pass on to the daughter cells.

• Chromosomes can align in metaphase I in multiple possible arrangements in a process called independent assortment.

A model of one stage of mitosis is shown here. Draw conclusions about what happens in the NEXT stage of mitosis by selecting all the answers that apply.

• chromatids will separate

• spindle fibers will form

• chromosomes will condense

• nuclear membrane will disappear

• chromatids will move to opposite poles

Eukaryotic cells undergo mitosis, which produces two identical daughter cells. These cells are identical to each other and to the original parent cell. From the options below, select ALL of the reasons why a eukaryotic cell undergoes mitosis and the cell cycle.

• asexual reproduction

• growth of the organism

• repair of damaged cells

• replacement of lost cells

• production of gametes for sexual reproduction

A model of the cell cycle is shown here. Based on your knowledge of the cell cycle and the percentage of cells in each stage of the cell cycle, evaluate each of the following statements. Select ALL correct options.

• 90% of the time the cell is in interphase.

• Mitosis is the longest phase of the cell cycle.

• 10% of the time, the cell is dividing its nucleus and cytoplasm.

• The cell spends almost half of its time growing in size and duplicating organelles.

• The cell spends 5X more time duplicating the DNA compared to dividing the nuclear components.

Examine the stages of the cell cycle shown here. The steps of the cell cycle, including mitosis, are shown here. Determine which statements are accurate based on the model shown here. Select ALL that apply.

• The correct order is DACB

• The correct order is ABCD

• Chromatids are separated during the entire process.

• Letter C shows the separation of homologous chromosomes.

• Letter B is a cell undergoing cytokinesis by forming a cell plate.