MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A homozygous parent produces gametes that are ______; while the heterozygous parent produces gametes that are _______ |
| A. | similar; similar |
| B. | similar; dissimilar |
| C. | dissimilar; dissimilar |
| D. | dissimilar; similar |
| Answer» C. dissimilar; dissimilar | |
| 2. |
Which of the following is not a statement of the principle of dominance? |
| A. | Factors occur in pairs |
| B. | One factor is dominant over the other |
| C. | Factors control characters |
| D. | Factors segregated during the process of meiosis |
| Answer» E. | |
| 3. |
The factors that Mendel postulated occur in triplets. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
According to the law of dominance, what are the discrete units that control the characters? |
| A. | Factors |
| B. | Multipliers |
| C. | Divisors |
| D. | Remainders |
| Answer» B. Multipliers | |
| 5. |
What generation of Mendelian cross has a phenotypic ratio of 3:1? |
| A. | F0 |
| B. | F1 |
| C. | F2 |
| D. | F3 |
| Answer» D. F3 | |
| 6. |
The ratio of phenotypes observed in progeny after a cross has been performed is called ________ |
| A. | genotypic ratio |
| B. | phenotypic ratio |
| C. | absolute ratio |
| D. | relative ratio |
| Answer» C. absolute ratio | |
| 7. |
The ratio of genotypes observed in progeny after a cross has been performed is called ________ |
| A. | genotypic ratio |
| B. | phenotypic ratio |
| C. | absolute ratio |
| D. | relative ratio |
| Answer» B. phenotypic ratio | |
| 8. |
Which of the following is the correct number of offsprings produced by self-fertilization of a heterozygous pea plant for a trait that exhibits Mendelian genetic pattern? |
| A. | 250 Homozygous dominant, 500 Heterozygous dominant and 250 Homozygous recessive |
| B. | 125 Homozygous dominant, 125 Heterozygous dominant and 125 Homozygous recessive |
| C. | 500 Homozygous dominant, 501 Heterozygous dominant and 250 Homozygous recessive |
| D. | 500 Homozygous dominant, 250 Heterozygous dominant and 500 Homozygous recessive |
| Answer» B. 125 Homozygous dominant, 125 Heterozygous dominant and 125 Homozygous recessive | |
| 9. |
Upon self-fertilization of Aa with itself, the probability of A gamete fusing A and a gamete is equal. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What gametes are produced by a Vv heterozygous plant? |
| A. | 50% V and 50% v |
| B. | 75% V and 25% v |
| C. | 25% V and 75% v |
| D. | 100% V and 0% v |
| Answer» B. 75% V and 25% v | |
| 11. |
What is represented in the boxes of the Punnett square? |
| A. | Gametes of male parent |
| B. | Gametes of female parent |
| C. | Genotype of the offspring produced |
| D. | Genotype of all possible offsprings |
| Answer» B. Gametes of female parent | |
| 12. |
Where are the parental genotypes mentioned in a Punnett square? |
| A. | Left column and top row |
| B. | Left column and right column |
| C. | Top row and bottom row |
| D. | Right column and bottom row |
| Answer» B. Left column and right column | |
| 13. |
Who deserves the credit to discover Punnett square? |
| A. | Reginald Punnett |
| B. | Gregor Mendel |
| C. | John Watson |
| D. | Maurice Punnett |
| Answer» B. Gregor Mendel | |
| 14. |
What diagram is used to study the production of zygotes in F1 and F2 generation? |
| A. | Punnett square |
| B. | Punnett rectangle |
| C. | Punnett rhombus |
| D. | Punnett circle |
| Answer» B. Punnett rectangle | |