Eukaryotic genes are split genes with coding and non-coding sequences. A mutation leads to deletion of all coding sequences in a gene. The resultant allele would be called as
1. Lethal
2. Dominant
3. Loss of function
4. Sex-limited
The mechanism that causes a gene to move from one linkage group to another is called
1. Crossing-over
2. inversion
3. duplication
4. translocation
Which one of the following is a wrong statement regarding mutations?
1. Deletion and insertion of base pairs cause frame-shift mutations
2. Cancer cells commonly show chromosomal aberrations
3. UV and Gamma rays are mutagens
4. Change in a single base pair of DNA does not cause mutation