Q. Which of the following is not true about inversion?

View solution

Q. Consider this sequence A—O—B —C—D—E—F, be a DNA sequence where O is the centromere. Which of the following will be a pericentric inversion?

View solution

Q. ______________ inversions reduce crossing over in ______________

View solution

Q. What are the results of pericentric inversion with single crossing over?

View solution

Q. In Drosophila Crossing over in paracentric region is lethal and leads to cross-over suppression. This leads to reduction in fertility.

View solution

Q. Long pericentric inversions generally don’t act as cross over suppressors. Why?

View solution

Q. Choose the wrong option.

View solution

Q. In drosophila male there is no cross over suppression due to pericentric inversion as___________

View solution

Q. Which of the following is an example of inversion?

View solution

Q. In pericentric inversion, the inversion loop involves __________ strands.

View solution

Q. Which of the following case of duplication involves more than one chromosome?

View solution

Q. Tandem duplication creates ____________ and reverse tandem creates_____________

View solution

Q. The Streisinger’s model explains__________

View solution

Q. If there are two sequences CGCGCGCG and ATATATAT, which will have a higher probability of being duplicated?

View solution

Q. Which of the following will have the highest number of eye facete?

View solution

Q. Duplication of Vermillion eye colour gene leads to the expression of the mutant phenotype. Which of the following can lead to normal phenotype with this duplication present?

View solution

Q. Which human chromosomes are involved in Down’s syndrome?

View solution

Q. Which of the following could be due to duplication?

View solution

Q. If a gene undergoes duplication and one of the duplicated copy is mutated to render unexpressed protein. What will be the effect on phenotype?

View solution

Q. During Strisinger’s model, what happens?

View solution