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. |
The presence of two different alleles at a particular locus results in _________ |
| A. | Homozygosity |
| B. | Heterozygosity |
| C. | Hemizygosity |
| D. | Nullizygosity |
| Answer» C. Hemizygosity | |
| 2. |
During meiosis, what happens to the parental alleles? |
| A. | They segregate |
| B. | They undergo repair |
| C. | They undergo breakage |
| D. | They replicate |
| Answer» B. They undergo repair | |
| 3. |
A plant that exhibits two alleles for only one trait is called ________ |
| A. | monohybrid |
| B. | dihybrid |
| C. | monogamous |
| D. | digamous |
| Answer» B. dihybrid | |
| 4. |
The factor which expresses in homozygous and heterozygous states is called _______ |
| A. | dominant |
| B. | recessive |
| C. | gene |
| D. | allele |
| Answer» B. recessive | |
| 5. |
If VV produces violet flowers and vv produces white flowers, what will be the phenotype and genotype of the F1 progeny? |
| A. | All violet; Tt |
| B. | All white; tt |
| C. | All violet; TT and Tt |
| D. | All violet; TT, Tt, and tt |
| Answer» B. All white; tt | |
| 6. |
The cross of true-breeding yellow and green seeded pea plants can only produce yellow seeded progeny. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
With green pods as a dominant trait over yellow, which of the following crosses will result in all progeny having yellow pods? |
| A. | Homozygous green and homozygous yellow |
| B. | Heterozygous green and heterozygous green |
| C. | Homozygous yellow and homozygous yellow |
| D. | Homozygous green and homozygous green |
| Answer» D. Homozygous green and homozygous green | |
| 8. |
What should be the phenotype of a cross between violet and white-flowered true-breeding garden pea plants? |
| A. | Violet |
| B. | White |
| C. | Pink |
| D. | Red |
| Answer» B. White | |
| 9. |
I = Inflated, i = constricted. Given that the phenotype of F1 progeny is inflated pods and that the parents are true-breeding, which of the following is not a possible genotype of parents? |
| A. | Parent 1: II; Parent 2: ii |
| B. | Parent 1: II; Parent 2: II |
| C. | Parent 1: ii; Parent 2: ii |
| D. | Parent 1: ii; Parent 2: II |
| Answer» D. Parent 1: ii; Parent 2: II | |
| 10. |
What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants? |
| A. | Tall plants |
| B. | Dwarf plants |
| C. | Intermediate plants |
| D. | Mixed population of tall and dwarf plants |
| Answer» B. Dwarf plants | |
| 11. |
What does F in “F1 progeny” stand for? |
| A. | Filial |
| B. | Fillial |
| C. | Filum |
| D. | Filler |
| Answer» B. Fillial | |
| 12. |
What is the generation of plants produced by the crossing of true-breeding plants called? |
| A. | F1 |
| B. | F0 |
| C. | F2 |
| D. | F3 |
| Answer» B. F0 | |
| 13. |
What process needs to be avoided for carrying of efficient crosses? |
| A. | Self-pollination |
| B. | Fertilization |
| C. | Development of embryo |
| D. | Pollen tube development |
| Answer» B. Fertilization | |
| 14. |
What is the process of removal of anthers termed? |
| A. | Demasculation |
| B. | Emasculation |
| C. | Remasculation |
| D. | Masculation |
| Answer» C. Remasculation | |