Which of the following happens in the first stage of interphase?
a. The cell replenishes its energy stores and synthesizes the proteins necessary for chromosome
manipulation.
b. The DNA replicates to form two chromosomes.
c. Two centrosomes give rise to the mitotic spindle.
d. The cell accumulates the building blocks of chromosomal DNA and associated proteins.
d. The cell accumulates the building blocks of chromosomal DNA and associated proteins.
The cell accumulates the building blocks of chromosomal DNA and associated proteins in the first stage of interphase.
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When did the first eukaryotic cells form?
A. 2.1 billion years ago B. 2.1 million years ago C. 2.1 thousand years ago D. 3.7 billion years ago
Discuss the advantages of a closed circulatory system, compared to an open circulatory system
What will be an ideal response?
Weakened bones can result from an oversecretion of the
A. thyroid gland. B. adrenal gland. C. pancreas. D. parathyroid gland.
The most common and energetically useful hexose is:
What will be an ideal response?