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
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- Hemophilia is a blood disorder
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- Red blood cells contain a protein called hemoglobin
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- 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?
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- Sickle cell disease is a medical condition where the Red Blood Cells loses its normal shape
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Which disease or disorder causes people to have abnormal hemoglobin?
- Disorder or disease associated with hemoglobin causes anemia
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Which disease or disorder causes people to have abnormal hemoglobin?
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- 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
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- Cystic fibrosis results in breathing disorder of the affected individual due to increased thick mucus secretion
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What is the structural and functional unit of heredity?
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