Genetics and Evolution (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology): Questions 1 - 6 of 186
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Question number: 1
» Genetics and Evolution » Molecular Basis of Inheritance » Gene Expression and Regulation
Question
Operon is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | A set of closely linked genes regulating metabolic pathways in prokaryotes. |
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| b. | The sequence of three nitrogen bases determining a single amino acid. |
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| c. | The sequence of nitrogen bases in mRNA which codes for a single amino acid. |
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| d. | A segment of DNA specifying one polypeptide chain in protein synthesis. |
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Question number: 2
» Genetics and Evolution » Molecular Basis of Inheritance » Structure of DNA and RNA
Question
Which of the following is a base analogue?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Colchicine |
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| b. | Caffeine |
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| c. | Nitrous acid |
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| d. | 5 – bromouracil |
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Question number: 3
» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance
Question
If an offspring shows any one of the characters of either of parents, the
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Offspring is hereditary. |
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| b. | The character is related with cytoplasm. |
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| c. | Character is said to be hereditary. |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 4
» Genetics and Evolution » Heredity and Variation » Down's Syndrome, Turner's and Klinefelter's Syndromes
Question
The monosomic condition in human beings depicted as XO is referred to as
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Criminal syndrome |
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| b. | Down’s syndrome |
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| c. | Turner’s syndrome |
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| d. | Klinefelter’s syndrome |
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Question number: 5
» Genetics and Evolution » Molecular Basis of Inheritance » Gene Expression and Regulation
Question
Which of the following is genetically inert and does not transcribe messenger RNA for protein synthesis?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | DNA of heterochromatin |
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| b. | DNA of euchromatin and heterochromatin |
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| c. | DNA of euchromatin |
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| d. | All of the above |
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Question number: 6
» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance
Question
Organisms phenotypically similar but genotypically different are said to be
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Monozygous |
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| b. | Homozygous |
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| c. | Heterozygous |
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| d. | Multizygous |
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