C The second meiotic or meiosis division lead to separation of chromatics and centromere at the anaphase-II. In anaphase-II- centromere split and chromatids separate and chromatic move to opposite poles two group of chromosomes (total four group) are produce and end of telophase-II 4 haploid nuclei is form.
[Haryana PMT-2004 Manipal-2003]
Cell cycle and Cell Division
230901
Among the following which one is longest phase in prophase of meiosis?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diplotene
Explanation:
D Prophase of first meiotic division is typically longer and more complex and prophase divided into five part leptotene, zygotene, pachytene, diplotene and diakinesis . - Diplotene is longest phase in some oocytes of vertebrates diplotene can last for months or years.
[AMU-2005 / Haryana PMT-2004 / Manipal-2003]
Cell cycle and Cell Division
230902
Variations appear during meiosis due to
1 1,2 and 3 are correct.
2 1 and 2 are correct.
3 2 and 4 are correct.
4 1 and 3 are correct.
Explanation:
B Independent assortment and crossing over are the two process that shuffle the genetic material during meiosis resulting in a wide variety of genetic combination in the offspring. This is essential for sexual reproduction as it is follows for the production of offspring with different traits than the parents.
[BHU PMT (Mains)-2008
Cell cycle and Cell Division
230903
Crossing over takes place at:
1 one strand stage
2 two strand stage
3 three strand stage
4 four strand stage
Explanation:
Crossing over takes place at the four strand stage of meiosis, also known as the pachytene stage. This is the stage where the homologous chromosomes are loosely paired and aligned, and the DNA is double stranded. Crossing over occurs when two non-sister chromatids exchange genetic material.
C The second meiotic or meiosis division lead to separation of chromatics and centromere at the anaphase-II. In anaphase-II- centromere split and chromatids separate and chromatic move to opposite poles two group of chromosomes (total four group) are produce and end of telophase-II 4 haploid nuclei is form.
[Haryana PMT-2004 Manipal-2003]
Cell cycle and Cell Division
230901
Among the following which one is longest phase in prophase of meiosis?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diplotene
Explanation:
D Prophase of first meiotic division is typically longer and more complex and prophase divided into five part leptotene, zygotene, pachytene, diplotene and diakinesis . - Diplotene is longest phase in some oocytes of vertebrates diplotene can last for months or years.
[AMU-2005 / Haryana PMT-2004 / Manipal-2003]
Cell cycle and Cell Division
230902
Variations appear during meiosis due to
1 1,2 and 3 are correct.
2 1 and 2 are correct.
3 2 and 4 are correct.
4 1 and 3 are correct.
Explanation:
B Independent assortment and crossing over are the two process that shuffle the genetic material during meiosis resulting in a wide variety of genetic combination in the offspring. This is essential for sexual reproduction as it is follows for the production of offspring with different traits than the parents.
[BHU PMT (Mains)-2008
Cell cycle and Cell Division
230903
Crossing over takes place at:
1 one strand stage
2 two strand stage
3 three strand stage
4 four strand stage
Explanation:
Crossing over takes place at the four strand stage of meiosis, also known as the pachytene stage. This is the stage where the homologous chromosomes are loosely paired and aligned, and the DNA is double stranded. Crossing over occurs when two non-sister chromatids exchange genetic material.
C The second meiotic or meiosis division lead to separation of chromatics and centromere at the anaphase-II. In anaphase-II- centromere split and chromatids separate and chromatic move to opposite poles two group of chromosomes (total four group) are produce and end of telophase-II 4 haploid nuclei is form.
[Haryana PMT-2004 Manipal-2003]
Cell cycle and Cell Division
230901
Among the following which one is longest phase in prophase of meiosis?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diplotene
Explanation:
D Prophase of first meiotic division is typically longer and more complex and prophase divided into five part leptotene, zygotene, pachytene, diplotene and diakinesis . - Diplotene is longest phase in some oocytes of vertebrates diplotene can last for months or years.
[AMU-2005 / Haryana PMT-2004 / Manipal-2003]
Cell cycle and Cell Division
230902
Variations appear during meiosis due to
1 1,2 and 3 are correct.
2 1 and 2 are correct.
3 2 and 4 are correct.
4 1 and 3 are correct.
Explanation:
B Independent assortment and crossing over are the two process that shuffle the genetic material during meiosis resulting in a wide variety of genetic combination in the offspring. This is essential for sexual reproduction as it is follows for the production of offspring with different traits than the parents.
[BHU PMT (Mains)-2008
Cell cycle and Cell Division
230903
Crossing over takes place at:
1 one strand stage
2 two strand stage
3 three strand stage
4 four strand stage
Explanation:
Crossing over takes place at the four strand stage of meiosis, also known as the pachytene stage. This is the stage where the homologous chromosomes are loosely paired and aligned, and the DNA is double stranded. Crossing over occurs when two non-sister chromatids exchange genetic material.
C The second meiotic or meiosis division lead to separation of chromatics and centromere at the anaphase-II. In anaphase-II- centromere split and chromatids separate and chromatic move to opposite poles two group of chromosomes (total four group) are produce and end of telophase-II 4 haploid nuclei is form.
[Haryana PMT-2004 Manipal-2003]
Cell cycle and Cell Division
230901
Among the following which one is longest phase in prophase of meiosis?
1 Leptotene
2 Zygotene
3 Pachytene
4 Diplotene
Explanation:
D Prophase of first meiotic division is typically longer and more complex and prophase divided into five part leptotene, zygotene, pachytene, diplotene and diakinesis . - Diplotene is longest phase in some oocytes of vertebrates diplotene can last for months or years.
[AMU-2005 / Haryana PMT-2004 / Manipal-2003]
Cell cycle and Cell Division
230902
Variations appear during meiosis due to
1 1,2 and 3 are correct.
2 1 and 2 are correct.
3 2 and 4 are correct.
4 1 and 3 are correct.
Explanation:
B Independent assortment and crossing over are the two process that shuffle the genetic material during meiosis resulting in a wide variety of genetic combination in the offspring. This is essential for sexual reproduction as it is follows for the production of offspring with different traits than the parents.
[BHU PMT (Mains)-2008
Cell cycle and Cell Division
230903
Crossing over takes place at:
1 one strand stage
2 two strand stage
3 three strand stage
4 four strand stage
Explanation:
Crossing over takes place at the four strand stage of meiosis, also known as the pachytene stage. This is the stage where the homologous chromosomes are loosely paired and aligned, and the DNA is double stranded. Crossing over occurs when two non-sister chromatids exchange genetic material.
