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Q. No.The improvement of microscopy techniques in the late 1800s set the stage for the emergence of modern genetics because:
| 1. | it revealed new and unanticipated features of Mendel’s pea plant varieties. |
| 2. | it allowed biologists to study meiosis and mitosis, revealing the parallels between the behaviors of genes and chromosomes. |
| 3. | it allowed scientists to see the DNA present within chromosomes. |
| 4. | it led to the discovery of mitochondria. |
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What is the critical difference between genetic transfer in bacteria and sexual reproduction?
| 1. | In genetic transfer, genetic material is transferred from one individual to another. |
| 2. | In sexual reproduction, genetic material from two individuals is mixed equally. |
| 3. | In both processes, the individual donating genetic material retains their original complement of genetic material. |
| 4. | None of these. |
Which of the following statements regarding ‘gene’ will be correct?
| I. | Can be described as a unit of heredity. |
| II. | Contains information to produce a particular protein. |
| III. | Affects traits at the cellular level. |
| IV. | Can exist in many forms. |
The correct statements include:
| 1. | I, II, and III only | 2. | II, III, and IV only |
| 3. | I, III, and IV only | 4. | I, II, III, and IV |
The number of recessive traits in a garden pea in the list given in the box below is:
| dwarf stem height, wrinkled seed shape, yellow seed color; yellow pod color, inflated pod shape, terminal flower position, violet flower color |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Genetics, an important branch of biology, is best defined as:
| 1. | The study of the transmission of traits from parent to offspring. |
| 2. | The study of genes and traits defined by genes. |
| 3. | The study of DNA. |
| 4. | The study of variation between members of a species. |
What decides the frequency of an allele in a population?
| 1. | Dominance |
| 2. | Its location on a particular chromosome |
| 3. | Its degree of expression |
| 4. | Natural selection |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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