MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The flower color in Snapdragon exhibits _______ |
| A. | complete dominance |
| B. | incomplete dominance |
| C. | codominance |
| D. | multiple allelism |
| Answer» C. codominance | |
| 2. |
Which of the following fill not be the nature of enzyme encoded by a recessive gene? |
| A. | Less efficient enzyme |
| B. | No function observed for the enzyme |
| C. | Abnormal function of the enzyme |
| D. | More efficient enzyme |
| Answer» E. | |
| 3. |
What holds the information for a particular trait? |
| A. | Gene |
| B. | Genome |
| C. | Exon |
| D. | Intron |
| Answer» B. Genome | |
| 4. |
In the case of incomplete dominance, which zygosity expresses the blending of characters? |
| A. | Homozygosity |
| B. | Heterozygosity |
| C. | Hemizgosity |
| D. | Nullizygosity |
| Answer» C. Hemizgosity | |
| 5. |
The genotypic ratio observed in incomplete dominance is different from the genotypic ratio observed in complete dominance. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Rahul observed a plant in his garden. He hypothesized that the stem height exhibited incomplete dominance. To check for his, he created true-breeding lines of tall and short plants. He then crossed these and sampled 1000 progeny. Which of the following cases, matches his hypothesis? |
| A. | 500 tall plants, 250 intermediate plants, and 250 small plants |
| B. | 250 tall plants, 500 intermediate plants, and 250 small plants |
| C. | 250 tall plants, 250 intermediate plants, and 500 small plants |
| D. | 125 tall plants, 750 intermediate plants, and 125 small plants |
| Answer» C. 250 tall plants, 250 intermediate plants, and 500 small plants | |
| 7. |
If a cross between true-breeding red-flowered and true-breeding white-flowered plants give rise to pink-flowered progeny, what is the mode of inheritance? |
| A. | Complete dominance |
| B. | Incomplete dominance |
| C. | Codominance |
| D. | Multiple allelism |
| Answer» C. Codominance | |
| 8. |
Incomplete dominance violated Mendel s law of dominance. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following shows incomplete dominance? |
| A. | Flower color in garden peas |
| B. | Flower color in snapdragon |
| C. | Blood grouping in humans |
| D. | Pod color in garden peas |
| Answer» C. Blood grouping in humans | |