230904
In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova results?
1 1
2 2
3 3
4 4
Explanation:
A Oogenesis is the process of egg production in females. It begins with a diploid cell in the ovary, called an Oogonium. The Oogonium undergoes two rounds of meiosis, resulting in four haploid cells. However, only one of these cells, called the secondary oocyte will mature into an ovum. The other three cells are called polar bodies and they degenerated.
[CG PMT-2010]
Cell cycle and Cell Division
230905
Arrange the following events of meiosis in the correct sequence: 1.Terminalization 2.Crossing over 3.Synapsis 4.Disjunction sequences is:
1 \(4,3,2,1\)
2 \(3,2,1,4\)
3 \(2,1,4,3\)
4 \(1,4,3,2\)
Explanation:
B The pairing of homologous chromosomes take place during zygotene stage this is known as synapsis. In the next stage i.e. pachytene stage the exchange of some genes (part of chromatides) take place between two non-sister chromatid of a pair of homologous chromosome. In the last stage of prophage-I i.e. diakinesis is the process of terminalization i.e. movement of chiasmata (site of crossing over) towards the telomere of the chromosome take place. In the anaphase-I stage of meiosis-I. The process of disjunction of genome i.e. movement of sister chromatids of a pair of homologue towards opposite pole take place.
[AP EAMCET-2005]
Cell cycle and Cell Division
230906
What is the function of the enzyme 'recombinase' during meiosis?
1 Formation of synaptonemal complex
2 Crossing over between non-sister chromatids
3 Condensation of chromosomes
4 Alignment of bivalent chromosomes on equatorial plane
Explanation:
B Recombinase is an enzyme that catalyzes crossing over between non-sister chromatids during meiosis. This process is essential for generating genetic diversity in the offspring.
[Karnataka CET-2016]
Cell cycle and Cell Division
230911
The complex formed by a pair of synapsed homologous chromosomes is called :
1 Axoneme
2 Equatorial plate
3 Kinetochore
4 Bivalent
Explanation:
D The complex formed by a pair of synapsed homologous chromosomes is called a bivalent. A bivalent is made up of two homologous chromosomes that are held together by a synaptonemal complex.
[NEET-2013]
Cell cycle and Cell Division
230914
Chiasma shows the sites of
1 spindle formation
2 synapsis
3 crossing over
4 none of these
Explanation:
C Chiasma shows the site of crossing over. The homologus chromosomes start moving away from each other. During the separation of homologus chromosomes of each bivalent. It is found that the chromosomes are attached with each other at one or more point. This attachment is known as chiasma.
230904
In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova results?
1 1
2 2
3 3
4 4
Explanation:
A Oogenesis is the process of egg production in females. It begins with a diploid cell in the ovary, called an Oogonium. The Oogonium undergoes two rounds of meiosis, resulting in four haploid cells. However, only one of these cells, called the secondary oocyte will mature into an ovum. The other three cells are called polar bodies and they degenerated.
[CG PMT-2010]
Cell cycle and Cell Division
230905
Arrange the following events of meiosis in the correct sequence: 1.Terminalization 2.Crossing over 3.Synapsis 4.Disjunction sequences is:
1 \(4,3,2,1\)
2 \(3,2,1,4\)
3 \(2,1,4,3\)
4 \(1,4,3,2\)
Explanation:
B The pairing of homologous chromosomes take place during zygotene stage this is known as synapsis. In the next stage i.e. pachytene stage the exchange of some genes (part of chromatides) take place between two non-sister chromatid of a pair of homologous chromosome. In the last stage of prophage-I i.e. diakinesis is the process of terminalization i.e. movement of chiasmata (site of crossing over) towards the telomere of the chromosome take place. In the anaphase-I stage of meiosis-I. The process of disjunction of genome i.e. movement of sister chromatids of a pair of homologue towards opposite pole take place.
[AP EAMCET-2005]
Cell cycle and Cell Division
230906
What is the function of the enzyme 'recombinase' during meiosis?
1 Formation of synaptonemal complex
2 Crossing over between non-sister chromatids
3 Condensation of chromosomes
4 Alignment of bivalent chromosomes on equatorial plane
Explanation:
B Recombinase is an enzyme that catalyzes crossing over between non-sister chromatids during meiosis. This process is essential for generating genetic diversity in the offspring.
[Karnataka CET-2016]
Cell cycle and Cell Division
230911
The complex formed by a pair of synapsed homologous chromosomes is called :
1 Axoneme
2 Equatorial plate
3 Kinetochore
4 Bivalent
Explanation:
D The complex formed by a pair of synapsed homologous chromosomes is called a bivalent. A bivalent is made up of two homologous chromosomes that are held together by a synaptonemal complex.
[NEET-2013]
Cell cycle and Cell Division
230914
Chiasma shows the sites of
1 spindle formation
2 synapsis
3 crossing over
4 none of these
Explanation:
C Chiasma shows the site of crossing over. The homologus chromosomes start moving away from each other. During the separation of homologus chromosomes of each bivalent. It is found that the chromosomes are attached with each other at one or more point. This attachment is known as chiasma.
230904
In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova results?
1 1
2 2
3 3
4 4
Explanation:
A Oogenesis is the process of egg production in females. It begins with a diploid cell in the ovary, called an Oogonium. The Oogonium undergoes two rounds of meiosis, resulting in four haploid cells. However, only one of these cells, called the secondary oocyte will mature into an ovum. The other three cells are called polar bodies and they degenerated.
[CG PMT-2010]
Cell cycle and Cell Division
230905
Arrange the following events of meiosis in the correct sequence: 1.Terminalization 2.Crossing over 3.Synapsis 4.Disjunction sequences is:
1 \(4,3,2,1\)
2 \(3,2,1,4\)
3 \(2,1,4,3\)
4 \(1,4,3,2\)
Explanation:
B The pairing of homologous chromosomes take place during zygotene stage this is known as synapsis. In the next stage i.e. pachytene stage the exchange of some genes (part of chromatides) take place between two non-sister chromatid of a pair of homologous chromosome. In the last stage of prophage-I i.e. diakinesis is the process of terminalization i.e. movement of chiasmata (site of crossing over) towards the telomere of the chromosome take place. In the anaphase-I stage of meiosis-I. The process of disjunction of genome i.e. movement of sister chromatids of a pair of homologue towards opposite pole take place.
[AP EAMCET-2005]
Cell cycle and Cell Division
230906
What is the function of the enzyme 'recombinase' during meiosis?
1 Formation of synaptonemal complex
2 Crossing over between non-sister chromatids
3 Condensation of chromosomes
4 Alignment of bivalent chromosomes on equatorial plane
Explanation:
B Recombinase is an enzyme that catalyzes crossing over between non-sister chromatids during meiosis. This process is essential for generating genetic diversity in the offspring.
[Karnataka CET-2016]
Cell cycle and Cell Division
230911
The complex formed by a pair of synapsed homologous chromosomes is called :
1 Axoneme
2 Equatorial plate
3 Kinetochore
4 Bivalent
Explanation:
D The complex formed by a pair of synapsed homologous chromosomes is called a bivalent. A bivalent is made up of two homologous chromosomes that are held together by a synaptonemal complex.
[NEET-2013]
Cell cycle and Cell Division
230914
Chiasma shows the sites of
1 spindle formation
2 synapsis
3 crossing over
4 none of these
Explanation:
C Chiasma shows the site of crossing over. The homologus chromosomes start moving away from each other. During the separation of homologus chromosomes of each bivalent. It is found that the chromosomes are attached with each other at one or more point. This attachment is known as chiasma.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Cell cycle and Cell Division
230904
In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova results?
1 1
2 2
3 3
4 4
Explanation:
A Oogenesis is the process of egg production in females. It begins with a diploid cell in the ovary, called an Oogonium. The Oogonium undergoes two rounds of meiosis, resulting in four haploid cells. However, only one of these cells, called the secondary oocyte will mature into an ovum. The other three cells are called polar bodies and they degenerated.
[CG PMT-2010]
Cell cycle and Cell Division
230905
Arrange the following events of meiosis in the correct sequence: 1.Terminalization 2.Crossing over 3.Synapsis 4.Disjunction sequences is:
1 \(4,3,2,1\)
2 \(3,2,1,4\)
3 \(2,1,4,3\)
4 \(1,4,3,2\)
Explanation:
B The pairing of homologous chromosomes take place during zygotene stage this is known as synapsis. In the next stage i.e. pachytene stage the exchange of some genes (part of chromatides) take place between two non-sister chromatid of a pair of homologous chromosome. In the last stage of prophage-I i.e. diakinesis is the process of terminalization i.e. movement of chiasmata (site of crossing over) towards the telomere of the chromosome take place. In the anaphase-I stage of meiosis-I. The process of disjunction of genome i.e. movement of sister chromatids of a pair of homologue towards opposite pole take place.
[AP EAMCET-2005]
Cell cycle and Cell Division
230906
What is the function of the enzyme 'recombinase' during meiosis?
1 Formation of synaptonemal complex
2 Crossing over between non-sister chromatids
3 Condensation of chromosomes
4 Alignment of bivalent chromosomes on equatorial plane
Explanation:
B Recombinase is an enzyme that catalyzes crossing over between non-sister chromatids during meiosis. This process is essential for generating genetic diversity in the offspring.
[Karnataka CET-2016]
Cell cycle and Cell Division
230911
The complex formed by a pair of synapsed homologous chromosomes is called :
1 Axoneme
2 Equatorial plate
3 Kinetochore
4 Bivalent
Explanation:
D The complex formed by a pair of synapsed homologous chromosomes is called a bivalent. A bivalent is made up of two homologous chromosomes that are held together by a synaptonemal complex.
[NEET-2013]
Cell cycle and Cell Division
230914
Chiasma shows the sites of
1 spindle formation
2 synapsis
3 crossing over
4 none of these
Explanation:
C Chiasma shows the site of crossing over. The homologus chromosomes start moving away from each other. During the separation of homologus chromosomes of each bivalent. It is found that the chromosomes are attached with each other at one or more point. This attachment is known as chiasma.
230904
In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova results?
1 1
2 2
3 3
4 4
Explanation:
A Oogenesis is the process of egg production in females. It begins with a diploid cell in the ovary, called an Oogonium. The Oogonium undergoes two rounds of meiosis, resulting in four haploid cells. However, only one of these cells, called the secondary oocyte will mature into an ovum. The other three cells are called polar bodies and they degenerated.
[CG PMT-2010]
Cell cycle and Cell Division
230905
Arrange the following events of meiosis in the correct sequence: 1.Terminalization 2.Crossing over 3.Synapsis 4.Disjunction sequences is:
1 \(4,3,2,1\)
2 \(3,2,1,4\)
3 \(2,1,4,3\)
4 \(1,4,3,2\)
Explanation:
B The pairing of homologous chromosomes take place during zygotene stage this is known as synapsis. In the next stage i.e. pachytene stage the exchange of some genes (part of chromatides) take place between two non-sister chromatid of a pair of homologous chromosome. In the last stage of prophage-I i.e. diakinesis is the process of terminalization i.e. movement of chiasmata (site of crossing over) towards the telomere of the chromosome take place. In the anaphase-I stage of meiosis-I. The process of disjunction of genome i.e. movement of sister chromatids of a pair of homologue towards opposite pole take place.
[AP EAMCET-2005]
Cell cycle and Cell Division
230906
What is the function of the enzyme 'recombinase' during meiosis?
1 Formation of synaptonemal complex
2 Crossing over between non-sister chromatids
3 Condensation of chromosomes
4 Alignment of bivalent chromosomes on equatorial plane
Explanation:
B Recombinase is an enzyme that catalyzes crossing over between non-sister chromatids during meiosis. This process is essential for generating genetic diversity in the offspring.
[Karnataka CET-2016]
Cell cycle and Cell Division
230911
The complex formed by a pair of synapsed homologous chromosomes is called :
1 Axoneme
2 Equatorial plate
3 Kinetochore
4 Bivalent
Explanation:
D The complex formed by a pair of synapsed homologous chromosomes is called a bivalent. A bivalent is made up of two homologous chromosomes that are held together by a synaptonemal complex.
[NEET-2013]
Cell cycle and Cell Division
230914
Chiasma shows the sites of
1 spindle formation
2 synapsis
3 crossing over
4 none of these
Explanation:
C Chiasma shows the site of crossing over. The homologus chromosomes start moving away from each other. During the separation of homologus chromosomes of each bivalent. It is found that the chromosomes are attached with each other at one or more point. This attachment is known as chiasma.