Which of the following lists structures from smallest to largest


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1. Which of the following lists structures from smallest to largest?

a.) chromosome, supercoil, coil, nucleosome, double helix
b.) chromosome, coil, double helix, nucleosome, supercoil
c.) double helix, nucleosome, coil, supercoil, chromosome
d.) nucleosome, coil, double helix, chromosome, supercoil
2. Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase?
a.) G1 phase, DNA replication
b.) G2 phase, preparation for mitosis
c.) S phase, cell division
d.) M phase, cell growth
3. Which of the following is a correct statement about the events of the cell cycle?
a.) Little happens during the G1 and G2 phases.
b.) DNA replicates during cytokinesis.
c.) The M phase is usually the longest phase.
d.) Interphase consists of the G1, S, and G2 phases.
4. Which of the following takes the least amount of time to complete?
a.) G1 phase.
b.) G2 phase.
c.) metaphase.
d.) interphase.

Answered by wiki @



The correct options are as follows:
1. C.
The double helix, the neucleosome, the coil, supercoil and the chromosomes are all related to DNA although they differ in sizes. The neucleosome refers to a unit of eukaryotic chromosome, which is made up of a length of DNA coiled around histones. Coil and supercoils refers to the structures derived from the wrapping and folding of DNA structure. The chromosome is the the thread like structure composed of nucleic acid, which is found in the nucleus of living organisms.

 2. B.
Mitosis is a type of cell division in which two identical daughter cells are formed from a single parent cell. The process is divided into five stages, which are intephase, prophase, metaphase, anaphase and telophase. The G2 phase of mitosis refers to the second subphase of interphase. At this stage, the cell is preparing for mitosis by continuing to grow and producing new proteins.

3. The correct option is D.
The interphase stage of mitotic cell division is made up of G1, S and G2 phases. In G1 phase, the cell increase in size, produce RNA and synthesize proteins. DNA replication occurs during the S phase. During the G2 phase, the cell continue to produce new proteins in preparation for cell division.

4. The correct option is C.
At the metaphase stage, the cell chromosomes allign in the middle of the cell while the centrosomes prepare to separate the sister chromatids. The metaphase stage is the shortest stage in the cell cycle division, it only take about 4% of the time required to complete a whole cell cycle.











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