230999
The frequency of crossing - over occurring between two genes located on the same chromosome depends on
1 Length of the chromosome
2 Position of the centromere
3 Activities of two genes
4 Distance between two genes
Explanation:
D The frequency of crossing-over occurring between two genes located on the same chromosome depends on the distance between the genes. The further apart the genes are on the chromosome, the higher the likelihood of crossing-over events between them during meiosis. This is because crossing-over is random process that increases with increasing physical distance between the genes on the chromosome.
[WB JEE-2014]
Cell cycle and Cell Division
231000
A structure called Synaptonemal complex, which is considered to be physical structure which is associated with synapsis of homologous chromosomes was discovered by :
1 King
2 Moses
3 Griffith
4 Balbiani
Explanation:
B Synaptonemal complex was first time discovered by Montrose Moses in 1956. He was studying the chromosomes if the grasshopper under an electron microscope when he observed a distinctive structure that formed between homologous chromosomes during prophase I of meiosis. He named this structure the synaptonemal complex.
[BVP-2006]
Cell cycle and Cell Division
231001
Gobar gas contains mainly :
1 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
2 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
3 \(\mathrm{CO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}\)
Explanation:
A The main component of Gobar gas is methane \(\left(\mathrm{CH}_{4}\right)\), which makes up about \(50-70 \%\) of the gas. Carbon dioxide \(\left(\mathrm{CO}_{2}\right)\) is the next most abundant component making up about \(30-40 \%\) of the gas.
[Haryana PMT-2000]
Cell cycle and Cell Division
231002
Chromosomes replicate in which stage of meiosis?
1 Prophase -I
2 Prophase -II
3 Telophase -II
4 Interphase
Explanation:
D In replication of chromosomes in stage of interphase. It is the first stage of cell cycle and the period before cell division. During this phase the cell matures copies its DNA and prepare to divides. The replication of chromosome occur during the \(\mathrm{S}\) phase.
230999
The frequency of crossing - over occurring between two genes located on the same chromosome depends on
1 Length of the chromosome
2 Position of the centromere
3 Activities of two genes
4 Distance between two genes
Explanation:
D The frequency of crossing-over occurring between two genes located on the same chromosome depends on the distance between the genes. The further apart the genes are on the chromosome, the higher the likelihood of crossing-over events between them during meiosis. This is because crossing-over is random process that increases with increasing physical distance between the genes on the chromosome.
[WB JEE-2014]
Cell cycle and Cell Division
231000
A structure called Synaptonemal complex, which is considered to be physical structure which is associated with synapsis of homologous chromosomes was discovered by :
1 King
2 Moses
3 Griffith
4 Balbiani
Explanation:
B Synaptonemal complex was first time discovered by Montrose Moses in 1956. He was studying the chromosomes if the grasshopper under an electron microscope when he observed a distinctive structure that formed between homologous chromosomes during prophase I of meiosis. He named this structure the synaptonemal complex.
[BVP-2006]
Cell cycle and Cell Division
231001
Gobar gas contains mainly :
1 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
2 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
3 \(\mathrm{CO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}\)
Explanation:
A The main component of Gobar gas is methane \(\left(\mathrm{CH}_{4}\right)\), which makes up about \(50-70 \%\) of the gas. Carbon dioxide \(\left(\mathrm{CO}_{2}\right)\) is the next most abundant component making up about \(30-40 \%\) of the gas.
[Haryana PMT-2000]
Cell cycle and Cell Division
231002
Chromosomes replicate in which stage of meiosis?
1 Prophase -I
2 Prophase -II
3 Telophase -II
4 Interphase
Explanation:
D In replication of chromosomes in stage of interphase. It is the first stage of cell cycle and the period before cell division. During this phase the cell matures copies its DNA and prepare to divides. The replication of chromosome occur during the \(\mathrm{S}\) phase.
230999
The frequency of crossing - over occurring between two genes located on the same chromosome depends on
1 Length of the chromosome
2 Position of the centromere
3 Activities of two genes
4 Distance between two genes
Explanation:
D The frequency of crossing-over occurring between two genes located on the same chromosome depends on the distance between the genes. The further apart the genes are on the chromosome, the higher the likelihood of crossing-over events between them during meiosis. This is because crossing-over is random process that increases with increasing physical distance between the genes on the chromosome.
[WB JEE-2014]
Cell cycle and Cell Division
231000
A structure called Synaptonemal complex, which is considered to be physical structure which is associated with synapsis of homologous chromosomes was discovered by :
1 King
2 Moses
3 Griffith
4 Balbiani
Explanation:
B Synaptonemal complex was first time discovered by Montrose Moses in 1956. He was studying the chromosomes if the grasshopper under an electron microscope when he observed a distinctive structure that formed between homologous chromosomes during prophase I of meiosis. He named this structure the synaptonemal complex.
[BVP-2006]
Cell cycle and Cell Division
231001
Gobar gas contains mainly :
1 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
2 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
3 \(\mathrm{CO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}\)
Explanation:
A The main component of Gobar gas is methane \(\left(\mathrm{CH}_{4}\right)\), which makes up about \(50-70 \%\) of the gas. Carbon dioxide \(\left(\mathrm{CO}_{2}\right)\) is the next most abundant component making up about \(30-40 \%\) of the gas.
[Haryana PMT-2000]
Cell cycle and Cell Division
231002
Chromosomes replicate in which stage of meiosis?
1 Prophase -I
2 Prophase -II
3 Telophase -II
4 Interphase
Explanation:
D In replication of chromosomes in stage of interphase. It is the first stage of cell cycle and the period before cell division. During this phase the cell matures copies its DNA and prepare to divides. The replication of chromosome occur during the \(\mathrm{S}\) phase.
230999
The frequency of crossing - over occurring between two genes located on the same chromosome depends on
1 Length of the chromosome
2 Position of the centromere
3 Activities of two genes
4 Distance between two genes
Explanation:
D The frequency of crossing-over occurring between two genes located on the same chromosome depends on the distance between the genes. The further apart the genes are on the chromosome, the higher the likelihood of crossing-over events between them during meiosis. This is because crossing-over is random process that increases with increasing physical distance between the genes on the chromosome.
[WB JEE-2014]
Cell cycle and Cell Division
231000
A structure called Synaptonemal complex, which is considered to be physical structure which is associated with synapsis of homologous chromosomes was discovered by :
1 King
2 Moses
3 Griffith
4 Balbiani
Explanation:
B Synaptonemal complex was first time discovered by Montrose Moses in 1956. He was studying the chromosomes if the grasshopper under an electron microscope when he observed a distinctive structure that formed between homologous chromosomes during prophase I of meiosis. He named this structure the synaptonemal complex.
[BVP-2006]
Cell cycle and Cell Division
231001
Gobar gas contains mainly :
1 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
2 \(\mathrm{CH}_{4}+\mathrm{CO}_{2}\)
3 \(\mathrm{CO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}\)
Explanation:
A The main component of Gobar gas is methane \(\left(\mathrm{CH}_{4}\right)\), which makes up about \(50-70 \%\) of the gas. Carbon dioxide \(\left(\mathrm{CO}_{2}\right)\) is the next most abundant component making up about \(30-40 \%\) of the gas.
[Haryana PMT-2000]
Cell cycle and Cell Division
231002
Chromosomes replicate in which stage of meiosis?
1 Prophase -I
2 Prophase -II
3 Telophase -II
4 Interphase
Explanation:
D In replication of chromosomes in stage of interphase. It is the first stage of cell cycle and the period before cell division. During this phase the cell matures copies its DNA and prepare to divides. The replication of chromosome occur during the \(\mathrm{S}\) phase.
