168943
Identify the tumor suppressor genes form the following.
1 Oncogenes
2 \(\mathrm{P}^{53}\) genes
3 Pseudogenes
4 SRY genes
Explanation:
B \(\mathbf{P}^{\mathbf{5 3}}\) genes- A gene that makes a DNA sequence that resembles a gene but has been mutated into an inactive form over the course of evolution. A Pseudogene shares an evolutionary history with a functional gene and can provide insight into their shared ancestry. Example Drosophila Jingwei gene (PGAM4). (a) Oncogenes- A gene that is a mutated (changed) from of a gene involved in normal cell growth. Oncogene may cause the growth of cancer cells. Mutations in genes that become oncogenes can be inherited or caused by being exposed to substances in the environment that cause cancer. (Example- HER 2 oncogene) (d) SRY gene- SRY, the master sex-determining gene, is most commonly trans located from the short arm of the \(\mathrm{Y}\) chromosome onto the \(\mathrm{X}\), causing male-tofemale 46, XX ovotesticular DSD. Mutations in the coding region of the gene are also responsible for a significant proportion of 46, XY DSD cases.
AP EAMCET-2013
Cell : Structure and Functions
168949
How many chromosomes are present in each of the following with respect to maize plant respectively?
1 \(10,20,10,10,10,20,30\)
2 \(20,10,30,10,10,10,20\)
3 \(20,10,10,10,20,30,10\)
4 \(30,10,20,10,20,10,10\)
Explanation:
B Maize and sorghum have same number of chromosomes 2n=20 n=10 Leaf epidermal 2n=20 Antipodal n=10 Endosperm 3n=30 Generative cell=(n)=10 Egg cell (n)=10 Megaspore (n)=10 Microspore mother cell =(2n)=20
TS EAMCET-2015
Cell : Structure and Functions
168958
Which one of the following organelle in the figure correctly matches with its function?
1 Rough endoplasmic reticulum, protein synthesis
2 Rough endoplasmic reticulum, formation or glycoproteins
3 Golgi apparatus, protein synthesis
4 Golgi apparatus, formation of glycolipids
Explanation:
A The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce protein for the rest of the cell to function, the rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make these proteins. Golgi apparatus is involved in the formation of glycolipid and glycoproteins.
NEET-2013
Cell : Structure and Functions
168904
Lysosome contains:
1 Oxidative enzymes
2 Hydrolytic enzymes
3 Reductive enzymes
4 Anabolic enzymes
Explanation:
B A lysosome is a tiny sac bounded by a single unit membrane of lipoprotein. It contains a dense, finely granular fluid. It consists of glycoprotein hydrolytic (digestive) enzymes called acid hydrolases. These include proteases, lipases, nucleases, glycosidases, sulphatases, acid phosphatases, etc. Lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.
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Cell : Structure and Functions
168943
Identify the tumor suppressor genes form the following.
1 Oncogenes
2 \(\mathrm{P}^{53}\) genes
3 Pseudogenes
4 SRY genes
Explanation:
B \(\mathbf{P}^{\mathbf{5 3}}\) genes- A gene that makes a DNA sequence that resembles a gene but has been mutated into an inactive form over the course of evolution. A Pseudogene shares an evolutionary history with a functional gene and can provide insight into their shared ancestry. Example Drosophila Jingwei gene (PGAM4). (a) Oncogenes- A gene that is a mutated (changed) from of a gene involved in normal cell growth. Oncogene may cause the growth of cancer cells. Mutations in genes that become oncogenes can be inherited or caused by being exposed to substances in the environment that cause cancer. (Example- HER 2 oncogene) (d) SRY gene- SRY, the master sex-determining gene, is most commonly trans located from the short arm of the \(\mathrm{Y}\) chromosome onto the \(\mathrm{X}\), causing male-tofemale 46, XX ovotesticular DSD. Mutations in the coding region of the gene are also responsible for a significant proportion of 46, XY DSD cases.
AP EAMCET-2013
Cell : Structure and Functions
168949
How many chromosomes are present in each of the following with respect to maize plant respectively?
1 \(10,20,10,10,10,20,30\)
2 \(20,10,30,10,10,10,20\)
3 \(20,10,10,10,20,30,10\)
4 \(30,10,20,10,20,10,10\)
Explanation:
B Maize and sorghum have same number of chromosomes 2n=20 n=10 Leaf epidermal 2n=20 Antipodal n=10 Endosperm 3n=30 Generative cell=(n)=10 Egg cell (n)=10 Megaspore (n)=10 Microspore mother cell =(2n)=20
TS EAMCET-2015
Cell : Structure and Functions
168958
Which one of the following organelle in the figure correctly matches with its function?
1 Rough endoplasmic reticulum, protein synthesis
2 Rough endoplasmic reticulum, formation or glycoproteins
3 Golgi apparatus, protein synthesis
4 Golgi apparatus, formation of glycolipids
Explanation:
A The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce protein for the rest of the cell to function, the rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make these proteins. Golgi apparatus is involved in the formation of glycolipid and glycoproteins.
NEET-2013
Cell : Structure and Functions
168904
Lysosome contains:
1 Oxidative enzymes
2 Hydrolytic enzymes
3 Reductive enzymes
4 Anabolic enzymes
Explanation:
B A lysosome is a tiny sac bounded by a single unit membrane of lipoprotein. It contains a dense, finely granular fluid. It consists of glycoprotein hydrolytic (digestive) enzymes called acid hydrolases. These include proteases, lipases, nucleases, glycosidases, sulphatases, acid phosphatases, etc. Lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.
168943
Identify the tumor suppressor genes form the following.
1 Oncogenes
2 \(\mathrm{P}^{53}\) genes
3 Pseudogenes
4 SRY genes
Explanation:
B \(\mathbf{P}^{\mathbf{5 3}}\) genes- A gene that makes a DNA sequence that resembles a gene but has been mutated into an inactive form over the course of evolution. A Pseudogene shares an evolutionary history with a functional gene and can provide insight into their shared ancestry. Example Drosophila Jingwei gene (PGAM4). (a) Oncogenes- A gene that is a mutated (changed) from of a gene involved in normal cell growth. Oncogene may cause the growth of cancer cells. Mutations in genes that become oncogenes can be inherited or caused by being exposed to substances in the environment that cause cancer. (Example- HER 2 oncogene) (d) SRY gene- SRY, the master sex-determining gene, is most commonly trans located from the short arm of the \(\mathrm{Y}\) chromosome onto the \(\mathrm{X}\), causing male-tofemale 46, XX ovotesticular DSD. Mutations in the coding region of the gene are also responsible for a significant proportion of 46, XY DSD cases.
AP EAMCET-2013
Cell : Structure and Functions
168949
How many chromosomes are present in each of the following with respect to maize plant respectively?
1 \(10,20,10,10,10,20,30\)
2 \(20,10,30,10,10,10,20\)
3 \(20,10,10,10,20,30,10\)
4 \(30,10,20,10,20,10,10\)
Explanation:
B Maize and sorghum have same number of chromosomes 2n=20 n=10 Leaf epidermal 2n=20 Antipodal n=10 Endosperm 3n=30 Generative cell=(n)=10 Egg cell (n)=10 Megaspore (n)=10 Microspore mother cell =(2n)=20
TS EAMCET-2015
Cell : Structure and Functions
168958
Which one of the following organelle in the figure correctly matches with its function?
1 Rough endoplasmic reticulum, protein synthesis
2 Rough endoplasmic reticulum, formation or glycoproteins
3 Golgi apparatus, protein synthesis
4 Golgi apparatus, formation of glycolipids
Explanation:
A The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce protein for the rest of the cell to function, the rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make these proteins. Golgi apparatus is involved in the formation of glycolipid and glycoproteins.
NEET-2013
Cell : Structure and Functions
168904
Lysosome contains:
1 Oxidative enzymes
2 Hydrolytic enzymes
3 Reductive enzymes
4 Anabolic enzymes
Explanation:
B A lysosome is a tiny sac bounded by a single unit membrane of lipoprotein. It contains a dense, finely granular fluid. It consists of glycoprotein hydrolytic (digestive) enzymes called acid hydrolases. These include proteases, lipases, nucleases, glycosidases, sulphatases, acid phosphatases, etc. Lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.
168943
Identify the tumor suppressor genes form the following.
1 Oncogenes
2 \(\mathrm{P}^{53}\) genes
3 Pseudogenes
4 SRY genes
Explanation:
B \(\mathbf{P}^{\mathbf{5 3}}\) genes- A gene that makes a DNA sequence that resembles a gene but has been mutated into an inactive form over the course of evolution. A Pseudogene shares an evolutionary history with a functional gene and can provide insight into their shared ancestry. Example Drosophila Jingwei gene (PGAM4). (a) Oncogenes- A gene that is a mutated (changed) from of a gene involved in normal cell growth. Oncogene may cause the growth of cancer cells. Mutations in genes that become oncogenes can be inherited or caused by being exposed to substances in the environment that cause cancer. (Example- HER 2 oncogene) (d) SRY gene- SRY, the master sex-determining gene, is most commonly trans located from the short arm of the \(\mathrm{Y}\) chromosome onto the \(\mathrm{X}\), causing male-tofemale 46, XX ovotesticular DSD. Mutations in the coding region of the gene are also responsible for a significant proportion of 46, XY DSD cases.
AP EAMCET-2013
Cell : Structure and Functions
168949
How many chromosomes are present in each of the following with respect to maize plant respectively?
1 \(10,20,10,10,10,20,30\)
2 \(20,10,30,10,10,10,20\)
3 \(20,10,10,10,20,30,10\)
4 \(30,10,20,10,20,10,10\)
Explanation:
B Maize and sorghum have same number of chromosomes 2n=20 n=10 Leaf epidermal 2n=20 Antipodal n=10 Endosperm 3n=30 Generative cell=(n)=10 Egg cell (n)=10 Megaspore (n)=10 Microspore mother cell =(2n)=20
TS EAMCET-2015
Cell : Structure and Functions
168958
Which one of the following organelle in the figure correctly matches with its function?
1 Rough endoplasmic reticulum, protein synthesis
2 Rough endoplasmic reticulum, formation or glycoproteins
3 Golgi apparatus, protein synthesis
4 Golgi apparatus, formation of glycolipids
Explanation:
A The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce protein for the rest of the cell to function, the rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make these proteins. Golgi apparatus is involved in the formation of glycolipid and glycoproteins.
NEET-2013
Cell : Structure and Functions
168904
Lysosome contains:
1 Oxidative enzymes
2 Hydrolytic enzymes
3 Reductive enzymes
4 Anabolic enzymes
Explanation:
B A lysosome is a tiny sac bounded by a single unit membrane of lipoprotein. It contains a dense, finely granular fluid. It consists of glycoprotein hydrolytic (digestive) enzymes called acid hydrolases. These include proteases, lipases, nucleases, glycosidases, sulphatases, acid phosphatases, etc. Lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.
