Why Must DNA Be Packed into Chromosomes Before Mitosis or Meiosis

question 8

Multiple Choice

Why must DNA be packed into chromosomes before mitosis or meiosis can occur?

• A)In their unpacked state, the strands of DNA would be difficult to pull apart during cell division.
• B)The zygote would be unable to live if the DNA were not packed into chromosomes.
• C)We would be unable to see the karyotype if the DNA were not packed into chromosomes.
• D)Some of the genes would escape during cell division if they were not packed tightly into chromosomes.

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Definitions:

Guard Cells

Specialized cells in the epidermis of leaves, stems, and other organs that regulate gas exchange by opening and closing stomatal pores.

Stomata

Tiny openings or pores often found on the underside of leaves that are involved in gas exchange and transpiration in plants.

Cuticle

A protective and waxy or hard layer covering the epidermis of plants, invertebrates, or other organisms.

Mesophyll

The inner tissue of a leaf, containing many chloroplasts where photosynthesis occurs.