184339
Which type of gene regulate sex-determination in spinach plant? #[Qdiff: Easy, QCat: Theory Based, examname: GUJCET-2015,
1 Heterozygous genes
2 Homozygous genes
3 Single gene
4 Multiple genes
5 Multiple gene - Polygenes - A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus computing to multiple gene inheritance, a type of nonmendelian inheritance, as opposed to single gene inheritance, which is the core nation of Mendelian inheritance.]#
Explanation:
Single gene- Single gene disorders caused by DNA changes in one particular gene, and often have medic table inheritance patterns. Over 10,000 human disorders are caused by a change, known as a mutation in a single gene. These are known as single gene disorders. a) Homozygous- Homozygous describes the genetic genes. Condition- The genetic state where individuals has inherited the some DNA sequence for a particular gene from both their biological mother and their biological father. It is often used in the context of disease. b) Heterozygous gene- The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
GUJCET-2015
Principle of Inheritance and Variation
184341
The visual display of chromosomes arranged by size, shape and banding pattern is called as
1 Syndrome
2 Karyotype
3 Metaphase spread
4 Ploidy
Explanation:
The visual display of chromosomes arranged by size, shape and banding pattern is called an karyotype. A karyotype is the general appearance of the complete set of chromosomes in the cells of a speices or an individual organism.
SRM JEEE-2019
Principle of Inheritance and Variation
184344
If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then
1 He could not have discovered independent assortment
2 He might have discovered linkage
3 He might have discovered crossing over
4 He might have not observed dominance
Explanation:
Mendel studied seven traits in different pea plants. Pea plants have 14 chromosomes that is 7 chromosomes in haploid condition. Hence he studied and observed one trait or gene on one chromosome. If pea plants would have 12 chromosomes instead of 14, he would not have discovered the law of independent assortment.
AIPMT-1998
Principle of Inheritance and Variation
184345
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due to which enzyme : -
1 Amylase
2 Invertase
3 Diastase
4 Absence of starch branching enzyme
Explanation:
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch because the absence of starch branching enzyme In round seeds \((\mathrm{RR} / \mathrm{Rr}\) ) Starch branching enzyme -1 (SBE -1) is found but is absent from wrinkled seeds. - In rr seeds, a small DNA segment interferes with SBE-1 activity so that starch is not formed and free sugar gets accumulated. - As a result high osmotic pressure in rr seeds leads to shrinkage and wrinking.
184339
Which type of gene regulate sex-determination in spinach plant? #[Qdiff: Easy, QCat: Theory Based, examname: GUJCET-2015,
1 Heterozygous genes
2 Homozygous genes
3 Single gene
4 Multiple genes
5 Multiple gene - Polygenes - A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus computing to multiple gene inheritance, a type of nonmendelian inheritance, as opposed to single gene inheritance, which is the core nation of Mendelian inheritance.]#
Explanation:
Single gene- Single gene disorders caused by DNA changes in one particular gene, and often have medic table inheritance patterns. Over 10,000 human disorders are caused by a change, known as a mutation in a single gene. These are known as single gene disorders. a) Homozygous- Homozygous describes the genetic genes. Condition- The genetic state where individuals has inherited the some DNA sequence for a particular gene from both their biological mother and their biological father. It is often used in the context of disease. b) Heterozygous gene- The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
GUJCET-2015
Principle of Inheritance and Variation
184341
The visual display of chromosomes arranged by size, shape and banding pattern is called as
1 Syndrome
2 Karyotype
3 Metaphase spread
4 Ploidy
Explanation:
The visual display of chromosomes arranged by size, shape and banding pattern is called an karyotype. A karyotype is the general appearance of the complete set of chromosomes in the cells of a speices or an individual organism.
SRM JEEE-2019
Principle of Inheritance and Variation
184344
If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then
1 He could not have discovered independent assortment
2 He might have discovered linkage
3 He might have discovered crossing over
4 He might have not observed dominance
Explanation:
Mendel studied seven traits in different pea plants. Pea plants have 14 chromosomes that is 7 chromosomes in haploid condition. Hence he studied and observed one trait or gene on one chromosome. If pea plants would have 12 chromosomes instead of 14, he would not have discovered the law of independent assortment.
AIPMT-1998
Principle of Inheritance and Variation
184345
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due to which enzyme : -
1 Amylase
2 Invertase
3 Diastase
4 Absence of starch branching enzyme
Explanation:
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch because the absence of starch branching enzyme In round seeds \((\mathrm{RR} / \mathrm{Rr}\) ) Starch branching enzyme -1 (SBE -1) is found but is absent from wrinkled seeds. - In rr seeds, a small DNA segment interferes with SBE-1 activity so that starch is not formed and free sugar gets accumulated. - As a result high osmotic pressure in rr seeds leads to shrinkage and wrinking.
184339
Which type of gene regulate sex-determination in spinach plant? #[Qdiff: Easy, QCat: Theory Based, examname: GUJCET-2015,
1 Heterozygous genes
2 Homozygous genes
3 Single gene
4 Multiple genes
5 Multiple gene - Polygenes - A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus computing to multiple gene inheritance, a type of nonmendelian inheritance, as opposed to single gene inheritance, which is the core nation of Mendelian inheritance.]#
Explanation:
Single gene- Single gene disorders caused by DNA changes in one particular gene, and often have medic table inheritance patterns. Over 10,000 human disorders are caused by a change, known as a mutation in a single gene. These are known as single gene disorders. a) Homozygous- Homozygous describes the genetic genes. Condition- The genetic state where individuals has inherited the some DNA sequence for a particular gene from both their biological mother and their biological father. It is often used in the context of disease. b) Heterozygous gene- The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
GUJCET-2015
Principle of Inheritance and Variation
184341
The visual display of chromosomes arranged by size, shape and banding pattern is called as
1 Syndrome
2 Karyotype
3 Metaphase spread
4 Ploidy
Explanation:
The visual display of chromosomes arranged by size, shape and banding pattern is called an karyotype. A karyotype is the general appearance of the complete set of chromosomes in the cells of a speices or an individual organism.
SRM JEEE-2019
Principle of Inheritance and Variation
184344
If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then
1 He could not have discovered independent assortment
2 He might have discovered linkage
3 He might have discovered crossing over
4 He might have not observed dominance
Explanation:
Mendel studied seven traits in different pea plants. Pea plants have 14 chromosomes that is 7 chromosomes in haploid condition. Hence he studied and observed one trait or gene on one chromosome. If pea plants would have 12 chromosomes instead of 14, he would not have discovered the law of independent assortment.
AIPMT-1998
Principle of Inheritance and Variation
184345
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due to which enzyme : -
1 Amylase
2 Invertase
3 Diastase
4 Absence of starch branching enzyme
Explanation:
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch because the absence of starch branching enzyme In round seeds \((\mathrm{RR} / \mathrm{Rr}\) ) Starch branching enzyme -1 (SBE -1) is found but is absent from wrinkled seeds. - In rr seeds, a small DNA segment interferes with SBE-1 activity so that starch is not formed and free sugar gets accumulated. - As a result high osmotic pressure in rr seeds leads to shrinkage and wrinking.
184339
Which type of gene regulate sex-determination in spinach plant? #[Qdiff: Easy, QCat: Theory Based, examname: GUJCET-2015,
1 Heterozygous genes
2 Homozygous genes
3 Single gene
4 Multiple genes
5 Multiple gene - Polygenes - A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus computing to multiple gene inheritance, a type of nonmendelian inheritance, as opposed to single gene inheritance, which is the core nation of Mendelian inheritance.]#
Explanation:
Single gene- Single gene disorders caused by DNA changes in one particular gene, and often have medic table inheritance patterns. Over 10,000 human disorders are caused by a change, known as a mutation in a single gene. These are known as single gene disorders. a) Homozygous- Homozygous describes the genetic genes. Condition- The genetic state where individuals has inherited the some DNA sequence for a particular gene from both their biological mother and their biological father. It is often used in the context of disease. b) Heterozygous gene- The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
GUJCET-2015
Principle of Inheritance and Variation
184341
The visual display of chromosomes arranged by size, shape and banding pattern is called as
1 Syndrome
2 Karyotype
3 Metaphase spread
4 Ploidy
Explanation:
The visual display of chromosomes arranged by size, shape and banding pattern is called an karyotype. A karyotype is the general appearance of the complete set of chromosomes in the cells of a speices or an individual organism.
SRM JEEE-2019
Principle of Inheritance and Variation
184344
If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then
1 He could not have discovered independent assortment
2 He might have discovered linkage
3 He might have discovered crossing over
4 He might have not observed dominance
Explanation:
Mendel studied seven traits in different pea plants. Pea plants have 14 chromosomes that is 7 chromosomes in haploid condition. Hence he studied and observed one trait or gene on one chromosome. If pea plants would have 12 chromosomes instead of 14, he would not have discovered the law of independent assortment.
AIPMT-1998
Principle of Inheritance and Variation
184345
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due to which enzyme : -
1 Amylase
2 Invertase
3 Diastase
4 Absence of starch branching enzyme
Explanation:
Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch because the absence of starch branching enzyme In round seeds \((\mathrm{RR} / \mathrm{Rr}\) ) Starch branching enzyme -1 (SBE -1) is found but is absent from wrinkled seeds. - In rr seeds, a small DNA segment interferes with SBE-1 activity so that starch is not formed and free sugar gets accumulated. - As a result high osmotic pressure in rr seeds leads to shrinkage and wrinking.
