D Meiosis discovered by Farmer and Moore. Meiosis is a special kind of cell division that reduces the chromosome number by half which results in the production of haploid daughter cells. The production of haploid phase in the life cycle of sexually reproducing organism where fertilization restores the diploid phase. It maintains chromosome number generation after generation.
[WB JEE-2006]
Cell cycle and Cell Division
230895
Synapsis occur between
1 a male and female gamete
2 mRNA and ribosomes
3 spindle fibres and centromere
4 two homologous chromosomes
Explanation:
D Synapsis is the pairing of homologous chromosome by crossing over. It takes place during at the zygotene stage of meiosis. It is the exchange of chromosomal segment after synapsis which causes the genetic recombination i.e. pairing of chromosomes occurs and bivaleuts form synaptonemal complexes.
[Manipal-2012]
Cell cycle and Cell Division
230898
The four daughter cells derived from a single meiosis differ from each other due to
1 difference in chromosome number
2 crossing over only
3 independent assortment of chromosomes
4 crossing over as well as independent assortment of chromosomes
Explanation:
D A - haploid daughter cells which are formed as a result of it meiosis will differ from each other. It involves pairing of homologous chromosomes and recombination between them. It provides opportunities for new combination of genes to occur in the gametes by two-ways independent assortment of chromosomes and crossing over.
[CG PMT-2007]
Cell cycle and Cell Division
230899
Tapetal cells are characterized by
1 mitotic division
2 meiotic division
3 endomitosis
4 endomitosis as well as endopolyploidy.
Explanation:
D The deepest layer of anther wall is called the tapetum it is the primary nourishing layer. Endomitosis and endopolyploidy cause its cells to become multinucleate and polyploid.
D Meiosis discovered by Farmer and Moore. Meiosis is a special kind of cell division that reduces the chromosome number by half which results in the production of haploid daughter cells. The production of haploid phase in the life cycle of sexually reproducing organism where fertilization restores the diploid phase. It maintains chromosome number generation after generation.
[WB JEE-2006]
Cell cycle and Cell Division
230895
Synapsis occur between
1 a male and female gamete
2 mRNA and ribosomes
3 spindle fibres and centromere
4 two homologous chromosomes
Explanation:
D Synapsis is the pairing of homologous chromosome by crossing over. It takes place during at the zygotene stage of meiosis. It is the exchange of chromosomal segment after synapsis which causes the genetic recombination i.e. pairing of chromosomes occurs and bivaleuts form synaptonemal complexes.
[Manipal-2012]
Cell cycle and Cell Division
230898
The four daughter cells derived from a single meiosis differ from each other due to
1 difference in chromosome number
2 crossing over only
3 independent assortment of chromosomes
4 crossing over as well as independent assortment of chromosomes
Explanation:
D A - haploid daughter cells which are formed as a result of it meiosis will differ from each other. It involves pairing of homologous chromosomes and recombination between them. It provides opportunities for new combination of genes to occur in the gametes by two-ways independent assortment of chromosomes and crossing over.
[CG PMT-2007]
Cell cycle and Cell Division
230899
Tapetal cells are characterized by
1 mitotic division
2 meiotic division
3 endomitosis
4 endomitosis as well as endopolyploidy.
Explanation:
D The deepest layer of anther wall is called the tapetum it is the primary nourishing layer. Endomitosis and endopolyploidy cause its cells to become multinucleate and polyploid.
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Cell cycle and Cell Division
230892
The importance of meiosis lies in:
1 bringing discontinuous variations
2 addition in the number of chromosomes
3 reduction in the number of chromosomes
4 maintaining the number of chromosomes
Explanation:
D Meiosis discovered by Farmer and Moore. Meiosis is a special kind of cell division that reduces the chromosome number by half which results in the production of haploid daughter cells. The production of haploid phase in the life cycle of sexually reproducing organism where fertilization restores the diploid phase. It maintains chromosome number generation after generation.
[WB JEE-2006]
Cell cycle and Cell Division
230895
Synapsis occur between
1 a male and female gamete
2 mRNA and ribosomes
3 spindle fibres and centromere
4 two homologous chromosomes
Explanation:
D Synapsis is the pairing of homologous chromosome by crossing over. It takes place during at the zygotene stage of meiosis. It is the exchange of chromosomal segment after synapsis which causes the genetic recombination i.e. pairing of chromosomes occurs and bivaleuts form synaptonemal complexes.
[Manipal-2012]
Cell cycle and Cell Division
230898
The four daughter cells derived from a single meiosis differ from each other due to
1 difference in chromosome number
2 crossing over only
3 independent assortment of chromosomes
4 crossing over as well as independent assortment of chromosomes
Explanation:
D A - haploid daughter cells which are formed as a result of it meiosis will differ from each other. It involves pairing of homologous chromosomes and recombination between them. It provides opportunities for new combination of genes to occur in the gametes by two-ways independent assortment of chromosomes and crossing over.
[CG PMT-2007]
Cell cycle and Cell Division
230899
Tapetal cells are characterized by
1 mitotic division
2 meiotic division
3 endomitosis
4 endomitosis as well as endopolyploidy.
Explanation:
D The deepest layer of anther wall is called the tapetum it is the primary nourishing layer. Endomitosis and endopolyploidy cause its cells to become multinucleate and polyploid.
D Meiosis discovered by Farmer and Moore. Meiosis is a special kind of cell division that reduces the chromosome number by half which results in the production of haploid daughter cells. The production of haploid phase in the life cycle of sexually reproducing organism where fertilization restores the diploid phase. It maintains chromosome number generation after generation.
[WB JEE-2006]
Cell cycle and Cell Division
230895
Synapsis occur between
1 a male and female gamete
2 mRNA and ribosomes
3 spindle fibres and centromere
4 two homologous chromosomes
Explanation:
D Synapsis is the pairing of homologous chromosome by crossing over. It takes place during at the zygotene stage of meiosis. It is the exchange of chromosomal segment after synapsis which causes the genetic recombination i.e. pairing of chromosomes occurs and bivaleuts form synaptonemal complexes.
[Manipal-2012]
Cell cycle and Cell Division
230898
The four daughter cells derived from a single meiosis differ from each other due to
1 difference in chromosome number
2 crossing over only
3 independent assortment of chromosomes
4 crossing over as well as independent assortment of chromosomes
Explanation:
D A - haploid daughter cells which are formed as a result of it meiosis will differ from each other. It involves pairing of homologous chromosomes and recombination between them. It provides opportunities for new combination of genes to occur in the gametes by two-ways independent assortment of chromosomes and crossing over.
[CG PMT-2007]
Cell cycle and Cell Division
230899
Tapetal cells are characterized by
1 mitotic division
2 meiotic division
3 endomitosis
4 endomitosis as well as endopolyploidy.
Explanation:
D The deepest layer of anther wall is called the tapetum it is the primary nourishing layer. Endomitosis and endopolyploidy cause its cells to become multinucleate and polyploid.