Module 9 Exam

Which statement distinguishes the process of cytokinesis in plant and animal cells?

• A cell plate forms in plant cells, while a furrow forms in animal cells.

• Cytokinesis results in genetic diversity in animal cells but not plant cells.

• Cytokinesis results in genetic diversity in plant cells but not animal cells.

• A cell plate forms in animal cells, while a furrow forms in plant cells.

What is the function of the spindle apparatus?

• To condense DNA

• To break down the nuclear envelope

• To move chromosomes during mitosis

• The powerhouse of the cell

How can apoptosis be defined?

• Incomplete mitosis

• Complete mitosis

• Cell death

• Cell growth

Which of the following is the number of chromosomes in a haploid cell?

• 3n

• 4n

• 1n

• 2n

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

• Sister chromatids are pulled to opposite poles

• Cytokinesis occurs after the final phase

• Haploid number of chromosomes line the equator

• Spindle apparatus forms inside the cell

Why is Down syndrome called trisomy 21?

• The syndrome is caused by having 21 pairs of autosomes.

• The syndrome results from an extra chromosome 21.

• The person has an abnormal gene on chromosome 21.

• The person has 21 pairs of chromosomes instead of 23.

The structure that attaches sister chromatids is called the

The longest stage of the cell cycle is_______________.

• Mitosis

• Meiosis

• Interphase

• Metaphase

A failure in the regulation of the cell cycle will result in ___________________.

• Extended G1 phase

• Cancer

• Cytokinesis

• Cyclose dysregulation

Ultraviolet radiation is an example of a(n) ______________________.

• Enzyme

• Parasite

• Carcinogen

• Reactant