So this is my genetics homework which focused on crosses wit

So this is my genetics homework which focused on crosses with balancer stocks. I was hoping that somebody could check it and tell me if I am on the right track with my answers because this is the first time I\'ve dealt with balancers and I have no clue if I\'m doing it correctly. Thanks

Homework #1: Balancer Crosses (12 points total). Due by 5 pm on Friday, January 20th. Place in GSI boxes located in the lab. Please write neatly and clearly label our answers so GSIs will grade accurate our be able to You may simplify the written genotypes in your crossing schemes and only include relevant information. Chromosome 2 balancer: w118; Sco/cyo; Chromosome 3 balancer: w118. Ly/TM6B, Sb Phenotypes of markers: Sco Scutellar bristles missing curly wings. utation on a balancer chromosome Cyo Ly Long, narrow wings TM6B Tubby, extra humoral bristles. Mutation on a balancer chromosome Stubble bristles 1) You have an unknown p[GSv1 insertion located on chromosome 3. write out the crossing schemes and expected results using both the chromosome 2 and chromosome 3 balancer stocks. Indicate both the genotype and phenotype of the F1 and F2 offspring from these crosses. Make sure you identify which of the spring you would use to carry out the F1xF1 cross. (4pts) a. Cross with Chromosome 2 balancer stock: ube te xt, cross bristles All hype

Solution

The balancer cross follows the rule that if lethal recessive genes combine together the progeny dies, if mutant of wild type combines there will be vestigial organ development. So the crosses are correct and following the rules.