Exp:A Nucleus is also known as karyon its study is known as karyology. It was discovered by an English Botanist Robert Brown in 1831. It is the primary carrier of hereditary material. Hammerling proved by its experiments that nucleus is the key of heredity by using Acetabutaria. Robert Hook discovered the cell wall.
J and K CET-2001
Cell : Structure and Functions
169572
A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is :
1 phase contrast microscope
2 x-ray microscope
3 cell fractionation
4 scanning electron microscope
Explanation:
Exp:A It is an option microscopy technique that converts phase shift in light passing through transparent specimen to brightness change in image phage contrast microscopy makes highly transparent object. The cells can be observed in natural state by this microscopy.
MGIMS Wardha-2006
Cell : Structure and Functions
169573
Which cell organelle would not originated by endosymbiosis?
1 Mitochondria
2 Flagella
3 Nucleus
4 Chloroplasts
Explanation:
Exp:C Endosymbiotic theory states that some eukaryotic cell organelles like mitochondria, chloroplast, flagella, plastid evolved from free- living prokaryotes. This hypothesis states that they have nucleic acid \& originated independent- free living organism. Nucleus is not originated by endosymbiosis.
JCECE-2014
Cell : Structure and Functions
169575
Who coined the term 'chromosome'?
1 Balbiani
2 Waldeyer
3 Sutton
4 Purkinje
Explanation:
Exp:B The term "Chromosome" was given by "W. Waldeyer" in 1888. Chromosome is a DNA molecule that contains genetic material for an organism chromosomal structure is composed of DNA and special proteins to form dense, coiled structure.
Exp:A Nucleus is also known as karyon its study is known as karyology. It was discovered by an English Botanist Robert Brown in 1831. It is the primary carrier of hereditary material. Hammerling proved by its experiments that nucleus is the key of heredity by using Acetabutaria. Robert Hook discovered the cell wall.
J and K CET-2001
Cell : Structure and Functions
169572
A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is :
1 phase contrast microscope
2 x-ray microscope
3 cell fractionation
4 scanning electron microscope
Explanation:
Exp:A It is an option microscopy technique that converts phase shift in light passing through transparent specimen to brightness change in image phage contrast microscopy makes highly transparent object. The cells can be observed in natural state by this microscopy.
MGIMS Wardha-2006
Cell : Structure and Functions
169573
Which cell organelle would not originated by endosymbiosis?
1 Mitochondria
2 Flagella
3 Nucleus
4 Chloroplasts
Explanation:
Exp:C Endosymbiotic theory states that some eukaryotic cell organelles like mitochondria, chloroplast, flagella, plastid evolved from free- living prokaryotes. This hypothesis states that they have nucleic acid \& originated independent- free living organism. Nucleus is not originated by endosymbiosis.
JCECE-2014
Cell : Structure and Functions
169575
Who coined the term 'chromosome'?
1 Balbiani
2 Waldeyer
3 Sutton
4 Purkinje
Explanation:
Exp:B The term "Chromosome" was given by "W. Waldeyer" in 1888. Chromosome is a DNA molecule that contains genetic material for an organism chromosomal structure is composed of DNA and special proteins to form dense, coiled structure.
Exp:A Nucleus is also known as karyon its study is known as karyology. It was discovered by an English Botanist Robert Brown in 1831. It is the primary carrier of hereditary material. Hammerling proved by its experiments that nucleus is the key of heredity by using Acetabutaria. Robert Hook discovered the cell wall.
J and K CET-2001
Cell : Structure and Functions
169572
A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is :
1 phase contrast microscope
2 x-ray microscope
3 cell fractionation
4 scanning electron microscope
Explanation:
Exp:A It is an option microscopy technique that converts phase shift in light passing through transparent specimen to brightness change in image phage contrast microscopy makes highly transparent object. The cells can be observed in natural state by this microscopy.
MGIMS Wardha-2006
Cell : Structure and Functions
169573
Which cell organelle would not originated by endosymbiosis?
1 Mitochondria
2 Flagella
3 Nucleus
4 Chloroplasts
Explanation:
Exp:C Endosymbiotic theory states that some eukaryotic cell organelles like mitochondria, chloroplast, flagella, plastid evolved from free- living prokaryotes. This hypothesis states that they have nucleic acid \& originated independent- free living organism. Nucleus is not originated by endosymbiosis.
JCECE-2014
Cell : Structure and Functions
169575
Who coined the term 'chromosome'?
1 Balbiani
2 Waldeyer
3 Sutton
4 Purkinje
Explanation:
Exp:B The term "Chromosome" was given by "W. Waldeyer" in 1888. Chromosome is a DNA molecule that contains genetic material for an organism chromosomal structure is composed of DNA and special proteins to form dense, coiled structure.
Exp:A Nucleus is also known as karyon its study is known as karyology. It was discovered by an English Botanist Robert Brown in 1831. It is the primary carrier of hereditary material. Hammerling proved by its experiments that nucleus is the key of heredity by using Acetabutaria. Robert Hook discovered the cell wall.
J and K CET-2001
Cell : Structure and Functions
169572
A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is :
1 phase contrast microscope
2 x-ray microscope
3 cell fractionation
4 scanning electron microscope
Explanation:
Exp:A It is an option microscopy technique that converts phase shift in light passing through transparent specimen to brightness change in image phage contrast microscopy makes highly transparent object. The cells can be observed in natural state by this microscopy.
MGIMS Wardha-2006
Cell : Structure and Functions
169573
Which cell organelle would not originated by endosymbiosis?
1 Mitochondria
2 Flagella
3 Nucleus
4 Chloroplasts
Explanation:
Exp:C Endosymbiotic theory states that some eukaryotic cell organelles like mitochondria, chloroplast, flagella, plastid evolved from free- living prokaryotes. This hypothesis states that they have nucleic acid \& originated independent- free living organism. Nucleus is not originated by endosymbiosis.
JCECE-2014
Cell : Structure and Functions
169575
Who coined the term 'chromosome'?
1 Balbiani
2 Waldeyer
3 Sutton
4 Purkinje
Explanation:
Exp:B The term "Chromosome" was given by "W. Waldeyer" in 1888. Chromosome is a DNA molecule that contains genetic material for an organism chromosomal structure is composed of DNA and special proteins to form dense, coiled structure.
