science
Grade-11
Easy
Question
Which disorder or disease has alleles that are co-dominant with each other?
- Hemophilia
- Sickle cell anemia
- Cystic fibrosis
- Huntington's
Hint:
Malaria can also cause this disease.
The correct answer is: Sickle cell anemia
- Sickle cell anemia is an example of codominance
- Codominance refers to expression of both the alleles of a gene
- The individuals with sickle cell can have homozygous or heterozygous genes
- Heterozygous gene containing individuals will have normal hemoglobin and abnormal "S" hemoglobin
- Homozygous gene containing individuals carry abnormal hemoglobin
- 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
Related Questions to study
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.
science
A gamete contains which of the following?
each gamete receives single allele of a gene.
A gamete contains which of the following?
scienceGrade-11
each gamete receives single allele of a gene.
science
All types of mutations are transferable among generations.
Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.
All types of mutations are transferable among generations.
scienceGrade-11
Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.
science
Mark the INCORRECT statement about mutation?
mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.
Mark the INCORRECT statement about mutation?
scienceGrade-11
mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.
science
Damage and errors in DNA cause___________.
damage and errors in DNA causes mutation.
Damage and errors in DNA cause___________.
scienceGrade-11
damage and errors in DNA causes mutation.
science
What is the evolutionary purpose of cells that undergo crossing over?
What is the evolutionary purpose of cells that undergo crossing over?
scienceGrade-10
science
When does chromosomal crossover occur?
When does chromosomal crossover occur?
scienceGrade-10
