Ratio 1:1:1:1 is obtained from a cross of

The ratio of 1:1:1:1 is obtained from a cross between the parents _________.

Genotypic ratio of 1:2:1 is obtained in a cross between

The ratio of 1 : 1 : 1 : 1 is obtained in case of

A dihybrid ratio of 1:4:6:4:1 is obtained instead of 9:3:3:1. This is an example of

Test cross ratio 1 : 7 : 7 : 1 in sweet pea when two pairs of alleles do not show independent assortment can be obtained from parental cross which is

Identify the incorrect statements from the below (I) Incomplete linkage 1:1:1:1 ratio is not obtained in test cross. (II) Synaptonemal complex prevents crossing over in Drosophila. (III) Crossing over is the reason for incomplete linkage. (IV) The horizontal cut will not create recombinants according to Robin Holliday.

Choose the correct statement(s). (I) Incomplete linkage 1:1:1:1 ratio is not obtained in test cross. (II) Synaptonemal complex prevents crossing over in Drosopilla (III) The horizontal cut will not create recombinants according to Robin Holliday. (IV) crossing over is the reason for incomplete linkage