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Various phases of cell cycle are controlled by proteins
- a)Hormones and CDKs
- b)Cytokines and Cyclins
- c)Cyclins and CDKs
- d)Hormones and Cyclins
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Various phases of cell cycle are controlled by proteinsa)Hormones and ...
Cyclin and CDKs enzymes are involved in controlling various phases of the cell cycle.
Cyclins are among the most important core cell cycle regulators.Cyclin A regulates the progression of cell cycle at S/G2 boundary and G2/M boundary.
M-phase promoting factor is Cyclin B which regulates the progression of cell cycle at G2/M boundary.
Cyclin D regulates the progression of cell cycle at G1/S boundary.
CDKs can modify various protein substrates involved in cell cycle progression.
M-phase promoting factor is Cyclin B which regulates the progression of cell cycle at G2/M boundary.
Cyclin D regulates the progression of cell cycle at G1/S boundary.
CDKs can modify various protein substrates involved in cell cycle progression.
CDK or cyclin dependent kinases are the enzymes that regulate the cell cycle by phosphorylating the amino acids like serine and threonine.
Most Upvoted Answer
Various phases of cell cycle are controlled by proteinsa)Hormones and ...
Explanation:
Pachytene stage:
- During the pachytene stage of meiosis I, the chromatids of a bivalent become distinct.
- This stage follows the zygotene stage where homologous chromosomes pair up.
Leptotene stage:
- In the leptotene stage, chromosomes condense and become visible as long threads.
Zygotene stage:
- In the zygotene stage, homologous chromosomes begin to pair up and form structures called bivalents.
Diplotene stage:
- The diplotene stage occurs after pachytene and is characterized by the separation of homologous chromosomes while the chromatids remain attached at the chiasmata.
In conclusion, during the pachytene stage of meiosis I, the chromatids of a bivalent become distinct, marking an important step in the process of genetic recombination and chromosome segregation.
Pachytene stage:
- During the pachytene stage of meiosis I, the chromatids of a bivalent become distinct.
- This stage follows the zygotene stage where homologous chromosomes pair up.
Leptotene stage:
- In the leptotene stage, chromosomes condense and become visible as long threads.
Zygotene stage:
- In the zygotene stage, homologous chromosomes begin to pair up and form structures called bivalents.
Diplotene stage:
- The diplotene stage occurs after pachytene and is characterized by the separation of homologous chromosomes while the chromatids remain attached at the chiasmata.
In conclusion, during the pachytene stage of meiosis I, the chromatids of a bivalent become distinct, marking an important step in the process of genetic recombination and chromosome segregation.
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Various phases of cell cycle are controlled by proteinsa)Hormones and CDKsb)Cytokines and Cyclinsc)Cyclins and CDKsd)Hormones and CyclinsCorrect answer is option 'C'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Various phases of cell cycle are controlled by proteinsa)Hormones and CDKsb)Cytokines and Cyclinsc)Cyclins and CDKsd)Hormones and CyclinsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Various phases of cell cycle are controlled by proteinsa)Hormones and CDKsb)Cytokines and Cyclinsc)Cyclins and CDKsd)Hormones and CyclinsCorrect answer is option 'C'. Can you explain this answer?.
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