science
Grade-11
Easy
Question
Any change in the sequence of DNA is...
- Transgenic shift
- Single genotype
- Monohybrid trait
- Mutation
Hint:
The resulting change can be beneficial or harmful.
The correct answer is: Mutation
Deoxyribonucleic acid or the genetic material is made up of nucleic acids (adenine, guanine, cytosine and thymine). These nucleic acids are arranged in a sequential manner in all organisms which is called genes. These genes are transcribed into proteins normally.
The condition where the sequence of nucleic acids is altered is called mutation. Mutation can be caused due to fault in "proof reading activity" within the cells or due to external agents like mutagens.
Mutations can be beneficial or harmful to the organism depending upon the gene that is altered. In few cases, the mutation is neutral with no effect.
- Change in gene sequence is termed as mutation
- Mutation are caused by mutagens
- Mutagens can be physical, chemical or biological in nature
- Not all mutations are harmful
- Evolution is a result of mutation
Related Questions to study
science
What do we use pedigrees for?
- Pedigree chart helps to analyze the traits of individuals in a family
- The pedigree chart helps to determine the occurrence of genetic disorder that runs in a family
- Pedigree chart is represented in the form of boxes and circles (males and females, respectively)
- Normal, carrier and affected individuals can be distinguished in a pedigree chart
What do we use pedigrees for?
scienceGrade-11
- Pedigree chart helps to analyze the traits of individuals in a family
- The pedigree chart helps to determine the occurrence of genetic disorder that runs in a family
- Pedigree chart is represented in the form of boxes and circles (males and females, respectively)
- Normal, carrier and affected individuals can be distinguished in a pedigree chart
science
Which sex chromosomes would indicate a typical human male?
- Females carry XX chromosome
- Males carry XY chromosome
- Males decide the sex of the offspring
Which sex chromosomes would indicate a typical human male?
scienceGrade-11
- Females carry XX chromosome
- Males carry XY chromosome
- Males decide the sex of the offspring
science
In order to trace occurrence of a trait through several generations of a family, you could create a ____________.
- A karyotype chart represents the image of an individuals chromosome
- Chromosomal map represents the genes present in a chromosome
- Hemoglobin is a protein present in red blood cell
- Pedigree chart is a tool used to analyze the passage of traits between generations
In order to trace occurrence of a trait through several generations of a family, you could create a ____________.
scienceGrade-11
- A karyotype chart represents the image of an individuals chromosome
- Chromosomal map represents the genes present in a chromosome
- Hemoglobin is a protein present in red blood cell
- Pedigree chart is a tool used to analyze the passage of traits between generations
science
Which chromosome is affected by hemophilia?
- Hemophilia is a blood disorder
- Individual with hemophilia does not posses clotting factor VIII or IX
- The genes for producing clotting factors are present in X chromosome
Which chromosome is affected by hemophilia?
scienceGrade-11
- Hemophilia is a blood disorder
- Individual with hemophilia does not posses clotting factor VIII or IX
- The genes for producing clotting factors are present in X chromosome
science
What is the name of the protein that is not normal in people with sickle-cell disease?
- Red blood cells contain a protein called hemoglobin
- Sickle cell anemia patients will posses abnormal "S" hemoglobin
- Clotting factors are present in plasma
What is the name of the protein that is not normal in people with sickle-cell disease?
scienceGrade-11
- Red blood cells contain a protein called hemoglobin
- Sickle cell anemia patients will posses abnormal "S" hemoglobin
- Clotting factors are present in plasma
science
Which disorder or disease has alleles that are co-dominant with each other?
- Sickle cell disease is a medical condition where the Red Blood Cells loses its normal shape
- The disease can be caused due to malaria or due to genetic disorder
Which disorder or disease has alleles that are co-dominant with each other?
scienceGrade-11
- Sickle cell disease is a medical condition where the Red Blood Cells loses its normal shape
- The disease can be caused due to malaria or due to genetic disorder
science
Which disease or disorder causes people to have abnormal hemoglobin?
- Disorder or disease associated with hemoglobin causes anemia
- In sickle cell anemia, the individual posses an altered "S" hemoglobin causing the RBCs to alter its shape
- The RBCs with "S" hemoglobin become rigid and sickle shaped with inability to transport gases, resulting in anemia
- Hemophilia is the disorder due to deficiency of clotting factors
- Cystic fibrosis affects respiratory system
- Females possessing single X chromosome are termed with a medical condition called Turner syndrome
Which disease or disorder causes people to have abnormal hemoglobin?
scienceGrade-11
- Disorder or disease associated with hemoglobin causes anemia
- In sickle cell anemia, the individual posses an altered "S" hemoglobin causing the RBCs to alter its shape
- The RBCs with "S" hemoglobin become rigid and sickle shaped with inability to transport gases, resulting in anemia
- Hemophilia is the disorder due to deficiency of clotting factors
- Cystic fibrosis affects respiratory system
- Females possessing single X chromosome are termed with a medical condition called Turner syndrome
science
Which disease or disorder is the result of having an extra chromosome?
- Down syndrome is also termed as trisomy 21
- Individuals posses an extra chromosome at 21 position
- Trisomy 21 is caused due to improper separation of chromosomes during meiosis
- Cystic fibrosis is an autosomal recessive disorder
- Color blindness is an autosomal dominant disorder
- Hemophilia is a monogenic genetic disorder
Which disease or disorder is the result of having an extra chromosome?
scienceGrade-11
- Down syndrome is also termed as trisomy 21
- Individuals posses an extra chromosome at 21 position
- Trisomy 21 is caused due to improper separation of chromosomes during meiosis
- Cystic fibrosis is an autosomal recessive disorder
- Color blindness is an autosomal dominant disorder
- Hemophilia is a monogenic genetic disorder
science
Which disease or disorder is caused by the inheritance of two mutated alleles?
- Cystic fibrosis results in breathing disorder of the affected individual due to increased thick mucus secretion
- The disorder is caused due to alteration in CFRT gene
- It is a type of autosomal recessive disorder, having both copies of gene altered in a cell
- Other disorders mentioned are not autosomal recessive in nature
Which disease or disorder is caused by the inheritance of two mutated alleles?
scienceGrade-11
- Cystic fibrosis results in breathing disorder of the affected individual due to increased thick mucus secretion
- The disorder is caused due to alteration in CFRT gene
- It is a type of autosomal recessive disorder, having both copies of gene altered in a cell
- Other disorders mentioned are not autosomal recessive in nature
science
Which of the following is NOT caused by a gene mutation?
it is an example of chromosomal disorder.
Which of the following is NOT caused by a gene mutation?
scienceGrade-11
it is an example of chromosomal disorder.
science
Which of the following is NOT a chromosomal disorder?
others are example of chromosomal disorders.
Which of the following is NOT a chromosomal disorder?
scienceGrade-11
others are example of chromosomal disorders.
science
Which of the following is a sex-linked disorder?
it is a sex-linked recessive disorder.
The abnormal gene responsible for hemophilia a carried on the X chromosome.
Which of the following is a sex-linked disorder?
scienceGrade-11
it is a sex-linked recessive disorder.
The abnormal gene responsible for hemophilia a carried on the X chromosome.
science
Which of the following has normal sex chromosomes?
it occurs due to an extra autosome hence, sex chromosomes are not affected.
Which of the following has normal sex chromosomes?
scienceGrade-11
it occurs due to an extra autosome hence, sex chromosomes are not affected.
science
Name the scientist who discovered the law of heredity:
gregor mendel discovered the law of heredity.
Name the scientist who discovered the law of heredity:
scienceGrade-11
gregor mendel discovered the law of heredity.
