In Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are found, in this order, on chromosome 3. Sepia is 22 map units from curled, whiich is 12 map units from ebony. A true-breeding female with sepia eyes and ebony body is crossed to a true-breeding male who has curled wings. The resulting F1 progeny from this cross are all wild ...

Question: Sepia eyes, spineless bristles, and striped thorax are three recessive mutations in drosophila found on chromosome 3. A genetics student crosses a fly homozygous for sepia eyes, spineless bristles, and striped thorax with a fly homozygous for the wild type traits--red eyes, normal bristles, and solid thorax.

n Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are found, in this order, on chromosome 3. Sepia is 23 map units from curled, which is 11 map units from ebony. A true-breeding female with sepia eyes and ebony body is crossed to a true-breeding male who has curled wings. The resulting F1 progeny from this cross are all wild type.

In Drosophila, sepia eyes (se), dipped wings (dp) and ebony body (e) are found, in this order, on chromosome 3. Sepia is 18 map units from dipped, which is 12 map units from ebony. A true-breeding female with sepia eyes and ebony body is crossed to a truebreeding male who has dipped wings. The resulting F1 progeny from this cross are all wild type.

The female lays 80 eggs. You allow the offspring from these eggs to mature, and then score their phenotypes. You find that 50 of her offspring have ebony bodies and sepia eyes, 10 have brown bodies and red eyes, 10 have brown bodies and sepia eyes, and 10 have ebony bodies and red eyes. 1. Examine the genotypes and phenotypes in the offspring.

In Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are found, in this order, on chromosome 3. Sepia is 22 map units from curled, which is 12 map units from ebony. A true-breeding female with sepia eyes and ebony body is crossed to a true-breeding male who has curled wings. The resulting F1 progeny from this cross are all wild ...

In Drosophila, sepia eyes (se), curled wings (cu) and ebony body (e) are found, in this order, on chromosome 3. Sepia is 22 map units from curled, which is 12 map units from ebony. A true-breeding female with sepia eyes and ebony body is crossed to a true- breeding male who has curled wings. The resulting F1 progeny from this cross are all wild ...

Table 1. Setup for the students' chi-square goodness-of-fit test Expected Observed 231 279 Phenotype Normal eyes, normal body Normal eyes, ebony body Sepia eyes, normal body Sepia eyes ebony body The students calculate a chi-squared value of 92.86 and compare it with a critical value of 7.82.

Sepia eyes are produced by an autosomal allele (se), which is recessive to the wild-type allele for red eyes (se+). A female that is homozygous for normal wings and has sepia eyes is crossed with a male that has miniature wings and is homozygous for red eyes. The F1 offspring are intercrossed to produce the F2 generation.

A fly that is heterozygous for both traits (GgEe) is crossed with one that has curled wings and sepia eyes (egee). Set up a Punnett square and list the phenotypic ratio of the offspring. GE Ge ge 9gEe gee ge Gg Ee ge Gg Ee Gigte ge GigEe 9E Ggee 99€ Ggee ggte Gee ggte Ggee gee gee 39ee How many are normal wings, red eyes?