NEET Exam > NEET Questions > Which is the correct order of phases ?a)Lepto...
Start Learning for Free
Which is the correct order of phases ?
- a)Leptotene, diakinesis, pachytene, diplotene,zygotene
- b)Leptotene, zygotene, pachytene, diplotene,diakinesis
- c)Diakinesis, diplotene, pachytene, zygotene, leptotene
- d)Leptotene, pachytene, zygotene, diplotene,diakinesis
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Which is the correct order of phases ?a)Leptotene, diakinesis, pachyte...
Order of Phases in Meiosis
Leptotene
- This is the first stage of meiosis.
- During leptotene, chromosomes start to condense and become visible under a microscope.
- The chromosomes appear as thin threads, and homologous chromosomes start pairing up.
Zygotene
- In this stage, homologous chromosomes start to pair up completely.
- This process is called synapsis, and it results in the formation of bivalents or tetrads.
- The chromosomes continue to condense, and the paired chromosomes become visible as thicker threads.
Pachytene
- During pachytene, the chromosomes become even more condensed and shorten.
- Crossing over occurs between the paired homologous chromosomes and results in the exchange of genetic material between them.
- This exchange of genetic material increases genetic diversity.
Diplotene
- In this stage, the homologous chromosomes start to separate, but they are still linked at points called chiasmata where crossing over occurred.
- The chromosomes start to uncoil and become visible as thinner threads again.
- The nuclear envelope also starts to reform around each set of chromosomes.
Diakinesis
- This is the final stage of meiosis I.
- The chromosomes continue to condense and become visible as distinct structures.
- The nuclear envelope breaks down completely, and the spindle fibers start to attach to the chromosomes in preparation for their separation.
Correct Order of Phases in Meiosis
The correct order of phases in meiosis is:
Leptotene → Zygotene → Pachytene → Diplotene → Diakinesis
Option B is the correct answer as it presents the phases in the correct order.
Leptotene
- This is the first stage of meiosis.
- During leptotene, chromosomes start to condense and become visible under a microscope.
- The chromosomes appear as thin threads, and homologous chromosomes start pairing up.
Zygotene
- In this stage, homologous chromosomes start to pair up completely.
- This process is called synapsis, and it results in the formation of bivalents or tetrads.
- The chromosomes continue to condense, and the paired chromosomes become visible as thicker threads.
Pachytene
- During pachytene, the chromosomes become even more condensed and shorten.
- Crossing over occurs between the paired homologous chromosomes and results in the exchange of genetic material between them.
- This exchange of genetic material increases genetic diversity.
Diplotene
- In this stage, the homologous chromosomes start to separate, but they are still linked at points called chiasmata where crossing over occurred.
- The chromosomes start to uncoil and become visible as thinner threads again.
- The nuclear envelope also starts to reform around each set of chromosomes.
Diakinesis
- This is the final stage of meiosis I.
- The chromosomes continue to condense and become visible as distinct structures.
- The nuclear envelope breaks down completely, and the spindle fibers start to attach to the chromosomes in preparation for their separation.
Correct Order of Phases in Meiosis
The correct order of phases in meiosis is:
Leptotene → Zygotene → Pachytene → Diplotene → Diakinesis
Option B is the correct answer as it presents the phases in the correct order.
Free Test
FREE
| Start Free Test |
Community Answer
Which is the correct order of phases ?a)Leptotene, diakinesis, pachyte...
Option b....(refer ncert)
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer?
Question Description
Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer?.
Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which is the correct order of phases ?a)Leptotene, diakinesis, pachytene, diplotene,zygoteneb)Leptotene, zygotene, pachytene, diplotene,diakinesisc)Diakinesis, diplotene, pachytene, zygotene, leptotened)Leptotene, pachytene, zygotene, diplotene,diakinesisCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup