The correct answer is: A checkpoint will be activated if the spindle does not attach to a kinetochore.
Prokaryotes, do not undergo mitosis (like eukaryotes) and therefore have no need for a mitotic spindle. Prokaryotes also don’ t have checkpoints foor the regulation of cell division.
Normal eukaryotic cells (unlike cancer cells), move through the cell cycle in a regulated way in order to make sure that cells don't divide under conditions that are unfavorable for them. Information about their own internal state (nutrients, signal molecules, DNA integrity) is signal to go or not to go through the cell division. Because of that there are few checkpoints in the cell cycle at which the cell examines the signals and makes a “decision”. The major checkpoints are:
• The G1- the first point at which it must choose, once it passes the G1 checkpoint the cell enters S phase
• The G2-the cell checks DNA integrity and checks if replication is done well.
• The spindle checkpoint-at the transition from metaphase to anaphase.
Answer is adhesion
just had this for my test
Answer:
A. wheter the producers are located on land or in the water.
The hypothalamus, a structure deep inside our brain, controls most of the body's metabolic functions and maintain homeostasis.
What is hypothalamus?
The hypothalamus is a small portion of the brain that consists of a number of small nuclei with various functions. One of the most important functions of the hypothalamus is to connect the nervous system to the endocrine system via the pituitary gland. It is located below the thalamus and is part of the limbic system. It forms the ventral part of the diencephalon. All vertebrate brains contain a hypothalamus. In humans, it has the size of an almond.
Learn more about hypothalamus here:
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Answer:
Option (1).
Explanation:
IACUC (Institutional Animal Care and Use Committee) is the group that determines the research facilities keep the accordance of the animal welfare act. The ethical issue must be related to animals.
To proceed any research U.S.federal regulation needs approval of IACUC. The research team requires the approval of IACUC for the research proposal before starting his research on the animals. Researchers must follows the protocols made by IACUC.
Thus, the correct answer is option (1).