MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Sex influenced genes will not occur in ________________ |
| A. | Homologous autosome |
| B. | Homologous part of sex chromosome |
| C. | Short arm of human Y chromosome |
| D. | On autosomes of male |
| Answer» D. On autosomes of male | |
| 2. |
Appearance of cock feather in chicken is ________________ |
| A. | X linked |
| B. | Y linked |
| C. | Sex influenced |
| D. | Sex limited |
| Answer» E. | |
| 3. |
If a bull doesn t express the milking factor, where m+ is normal and m is a mutant gene, its genotype is? |
| A. | m+/m+ |
| B. | m+/m |
| C. | m/m |
| D. | Can t be specified |
| Answer» E. | |
| 4. |
Which one of the following will not be expressed in female even in homozygous form? |
| A. | Cock feathering |
| B. | Cleft palate |
| C. | Osteoporosis |
| D. | Color blindness |
| Answer» B. Cleft palate | |
| 5. |
What will be the phenotype and genotype of a daughter born to bald mother and non-bald father? |
| A. | b+/b+ non-bald |
| B. | b+/b+ bald |
| C. | b/b+ non-bald |
| D. | b/b+ bald |
| Answer» D. b/b+ bald | |
| 6. |
Choose the odd one out on the basis of sex influence. |
| A. | Cleft palate |
| B. | Club foot |
| C. | Gout |
| D. | Osteoporosis |
| Answer» E. | |
| 7. |
Homozygous bald gene, a sex influenced gene, is equally expressed in men and women. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Patterned baldness is a sex influenced trait more expressed in a male. If b+ is normal allele making non-bald phenotype and b is mutant leading to bald phenotype, for a cross between a bald mother and normal father, what is the probability of a bald son? |
| A. | 0 |
| B. | 1/4 |
| C. | 1/2 |
| D. | 1 |
| Answer» E. | |
| 9. |
If present of horn in a breed of sheep is due to the presence of h+ allele which is sex influenced and more expressed in male, choose the off one out. |
| A. | Female with h<sup>+</sup> h<sup>+</sup> |
| B. | Male with h<sup>+</sup> h<sup>+</sup> |
| C. | Female with h h<sup>+</sup> |
| D. | Male with h h<sup>+</sup> |
| Answer» D. Male with h h<sup>+</sup> | |
| 10. |
If A is a sex influenced trait that is more expressed in males, then which of the following is false? |
| A. | Only male having a homozygous recessive form of this gene will not express it |
| B. | No female will express the gene |
| C. | The gene is autosomal |
| D. | Heterozygous female will not express this gene |
| Answer» C. The gene is autosomal | |
| 11. |
Sex influenced traits are only related to females. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
The sex influenced traits are present in _______________________ |
| A. | Autosome |
| B. | Sex chromosome |
| C. | Mitochondrial chromosome |
| D. | These are epigenetic traits |
| Answer» B. Sex chromosome | |