342565
____________________ of a segment of DNA, result in alteration in chromosomes
1 Deletions or insertion/duplication
2 Only deletions
3 Only insertion
4 Only duplication
Explanation:
Loss (deletions) or gain (insertion/ duplication) of a segment of DNA, result in alteration in chromosomes.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342566
Chromosomal aberrations are commonly observed in
1 Stomach cells
2 Healthy cells
3 Cancer cells
4 Normal cells
Explanation:
Chromosomal aberrations are commonly observed in cancer cells.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342567
Harmful mutations does not get eliminated from gene pool because
1 They are recessive and carried by heterozygous individuals.
2 They are recessive and carried by homozygous individuals.
3 They show genetic drift.
4 They are formed repeatedly.
Explanation:
Harmful mutations doesnot get eliminated from gene pool because they are recessive and carried by heterozygous individuals.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342568
Sickle cell-anaemia disorder arises due to
1 Duplication of a segment of DNA
2 Substitution in a single base of DNA
3 Deletion of a segment of DNA
4 Duplication in base pair of DNA
Explanation:
Mutation also arise due to change in a single base pair of DNA. This is known as point mutation. A classical example of such a mutation is sickle cell anemia.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342569
Statement A : Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. Statement B : Mutations are recessive always.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Mutations can be either recessive or dominant. In haploid organisms such as viruses and bacteria , both recessive and dominant mutations is identified by their effects on the phenotype of the organisms from which they occurred. Therefore, in many crops desirable mutants are isolated among haploids derived in culture.
342565
____________________ of a segment of DNA, result in alteration in chromosomes
1 Deletions or insertion/duplication
2 Only deletions
3 Only insertion
4 Only duplication
Explanation:
Loss (deletions) or gain (insertion/ duplication) of a segment of DNA, result in alteration in chromosomes.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342566
Chromosomal aberrations are commonly observed in
1 Stomach cells
2 Healthy cells
3 Cancer cells
4 Normal cells
Explanation:
Chromosomal aberrations are commonly observed in cancer cells.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342567
Harmful mutations does not get eliminated from gene pool because
1 They are recessive and carried by heterozygous individuals.
2 They are recessive and carried by homozygous individuals.
3 They show genetic drift.
4 They are formed repeatedly.
Explanation:
Harmful mutations doesnot get eliminated from gene pool because they are recessive and carried by heterozygous individuals.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342568
Sickle cell-anaemia disorder arises due to
1 Duplication of a segment of DNA
2 Substitution in a single base of DNA
3 Deletion of a segment of DNA
4 Duplication in base pair of DNA
Explanation:
Mutation also arise due to change in a single base pair of DNA. This is known as point mutation. A classical example of such a mutation is sickle cell anemia.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342569
Statement A : Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. Statement B : Mutations are recessive always.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Mutations can be either recessive or dominant. In haploid organisms such as viruses and bacteria , both recessive and dominant mutations is identified by their effects on the phenotype of the organisms from which they occurred. Therefore, in many crops desirable mutants are isolated among haploids derived in culture.
342565
____________________ of a segment of DNA, result in alteration in chromosomes
1 Deletions or insertion/duplication
2 Only deletions
3 Only insertion
4 Only duplication
Explanation:
Loss (deletions) or gain (insertion/ duplication) of a segment of DNA, result in alteration in chromosomes.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342566
Chromosomal aberrations are commonly observed in
1 Stomach cells
2 Healthy cells
3 Cancer cells
4 Normal cells
Explanation:
Chromosomal aberrations are commonly observed in cancer cells.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342567
Harmful mutations does not get eliminated from gene pool because
1 They are recessive and carried by heterozygous individuals.
2 They are recessive and carried by homozygous individuals.
3 They show genetic drift.
4 They are formed repeatedly.
Explanation:
Harmful mutations doesnot get eliminated from gene pool because they are recessive and carried by heterozygous individuals.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342568
Sickle cell-anaemia disorder arises due to
1 Duplication of a segment of DNA
2 Substitution in a single base of DNA
3 Deletion of a segment of DNA
4 Duplication in base pair of DNA
Explanation:
Mutation also arise due to change in a single base pair of DNA. This is known as point mutation. A classical example of such a mutation is sickle cell anemia.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342569
Statement A : Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. Statement B : Mutations are recessive always.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Mutations can be either recessive or dominant. In haploid organisms such as viruses and bacteria , both recessive and dominant mutations is identified by their effects on the phenotype of the organisms from which they occurred. Therefore, in many crops desirable mutants are isolated among haploids derived in culture.
342565
____________________ of a segment of DNA, result in alteration in chromosomes
1 Deletions or insertion/duplication
2 Only deletions
3 Only insertion
4 Only duplication
Explanation:
Loss (deletions) or gain (insertion/ duplication) of a segment of DNA, result in alteration in chromosomes.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342566
Chromosomal aberrations are commonly observed in
1 Stomach cells
2 Healthy cells
3 Cancer cells
4 Normal cells
Explanation:
Chromosomal aberrations are commonly observed in cancer cells.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342567
Harmful mutations does not get eliminated from gene pool because
1 They are recessive and carried by heterozygous individuals.
2 They are recessive and carried by homozygous individuals.
3 They show genetic drift.
4 They are formed repeatedly.
Explanation:
Harmful mutations doesnot get eliminated from gene pool because they are recessive and carried by heterozygous individuals.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342568
Sickle cell-anaemia disorder arises due to
1 Duplication of a segment of DNA
2 Substitution in a single base of DNA
3 Deletion of a segment of DNA
4 Duplication in base pair of DNA
Explanation:
Mutation also arise due to change in a single base pair of DNA. This is known as point mutation. A classical example of such a mutation is sickle cell anemia.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342569
Statement A : Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. Statement B : Mutations are recessive always.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Mutations can be either recessive or dominant. In haploid organisms such as viruses and bacteria , both recessive and dominant mutations is identified by their effects on the phenotype of the organisms from which they occurred. Therefore, in many crops desirable mutants are isolated among haploids derived in culture.
342565
____________________ of a segment of DNA, result in alteration in chromosomes
1 Deletions or insertion/duplication
2 Only deletions
3 Only insertion
4 Only duplication
Explanation:
Loss (deletions) or gain (insertion/ duplication) of a segment of DNA, result in alteration in chromosomes.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342566
Chromosomal aberrations are commonly observed in
1 Stomach cells
2 Healthy cells
3 Cancer cells
4 Normal cells
Explanation:
Chromosomal aberrations are commonly observed in cancer cells.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342567
Harmful mutations does not get eliminated from gene pool because
1 They are recessive and carried by heterozygous individuals.
2 They are recessive and carried by homozygous individuals.
3 They show genetic drift.
4 They are formed repeatedly.
Explanation:
Harmful mutations doesnot get eliminated from gene pool because they are recessive and carried by heterozygous individuals.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342568
Sickle cell-anaemia disorder arises due to
1 Duplication of a segment of DNA
2 Substitution in a single base of DNA
3 Deletion of a segment of DNA
4 Duplication in base pair of DNA
Explanation:
Mutation also arise due to change in a single base pair of DNA. This is known as point mutation. A classical example of such a mutation is sickle cell anemia.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342569
Statement A : Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. Statement B : Mutations are recessive always.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Mutations can be either recessive or dominant. In haploid organisms such as viruses and bacteria , both recessive and dominant mutations is identified by their effects on the phenotype of the organisms from which they occurred. Therefore, in many crops desirable mutants are isolated among haploids derived in culture.
