Biology, 22.10.2019 07:00 ray109

What regulates the timing of the cell cycle in eukaryotic cells?

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The family of closely related proteins that regulate the cell cycle in eukaryotic cells is called cyclin. The progression of cells during regulation through the cell cycle is achieved using the activating cyclin-dependent kinase (Cdk) enzymes. The regulation is composed of interactions with cyclins and Cdk inhibitors (CKIs)

Answer from: cruzsuarezjanca

Cyclins regulates the timing of the cell cycle in eukaryotic cells.

Further Explanation:

The cell cycle refers to an ordered flow of events which includes cell growth as well as cellular division. This cycle produces 2 new daughter cells. The cycle starts with interphase in this the cell mature and replicates its own DNA or deoxyribonucleic acid. The interphase begins with:

G1 phase: This is the primary growth phase provide nutrient to the cell. S phase or synthesis of DNA: During this phase, the replication of DNA takes place. The centrosome is divide and forms mitotic spindle during the mitosis phase. G2 or second gap: during this phase, the cell mainly replenishes its energy stores as well as synthesizes the proteins which are required for the chromosome manipulation.

The second stage of a cell cycle is the mitosis or M phase. Chromosomal abnormalities can occur during metaphase of meiosis. Mitotic phase refers to a multiphase process in this the chromosomes are aligned, segregated, and moved into the two new daughter cells which are identical to each other.

The cell cycle mainly is positively regulated by cyclin or cyclin dependent kinase. Cyclin are of different types such cyclin D, E, A, B. The timing of the cell cycle is related to the cyclin and CDK levels. The cyclin levels depends on the phase in which the cell is present. One type of cyclin degrades as the cell moves to the successive phases.

Learn more:

Learn more about mitosis Learn more about the menstrual cycle Learn more about meiosis

Answer Details:

Grade: High School

Subject: Biology

Chapter: Cell Cycle

Keywords:

Mitosis, meiosis, cell division, anaphase, telophase, cytokinesis, prophase, metaphase, segregation, chromosome.

Answer from: Quest

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

Answer from: Quest

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

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