27. Principles Of Inheritance And Variation

Question 1

In the morgans experiment on drosophila the strength of linkage between y+ and w+
1)higher than y and w
2)lower than y and w
3)higher than w and m
4)lower than w and m

Answer 1

3) yw and y+w+ (parental type : 98.7%) ( recombinant type : 1.3 %) more linkage
wm and w+m+ (parental type : 62.8%)(recombinant type : 37.2%) less linkage

Question 2

Cancer cells commonly show

Answer 2

Chromosomal abbreviations

Question 3

Deletion and insertion of base pairs causes

Answer 3

Frame shit mutations