Fruit flies (Drosophila) were mated. Cross #1 - 2 male red eyes (se+), wild wings(ap+) X 4 female red eyes (se+), wild wings(ap+) Cross #2 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female red eyes(se+), wild wings (ap+) Cross #3 - 2 male red eyes (se+), wild wings(ap+) X 4 female sepia eyes(se-), apterous wings(ap-) Cross #4 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female sepia eyes(se-), apterous wings(ap-) Write out a dihybrid cross and branch diagram for the F2 generation.

Fruit flies (Drosophila) were mated. Cross #1 - 2 male red eyes (se+), wild wings(ap+) X 4 female red eyes (se+), wild wings(ap+) Cross #2 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female red eyes(se+), wild wings (ap+) Cross #3 - 2 male red eyes (se+), wild wings(ap+) X 4 female sepia eyes(se-), apterous wings(ap-) Cross #4 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female sepia eyes(se-), apterous wings(ap-) Write out a dihybrid cross and branch diagram for the F2 generation.

Name: Fruit flies (Drosophila) were mated.Cross #1 - 2 male red eyes (se+),
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Description: Fruit flies (Drosophila) were mated.Cross #1 - 2 male red eyes (se+), wild wings(ap+) X 4 female red eyes (se+), wild wings(ap+)Cross #2 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female red eyes(se+), wild wings (ap+)Cross #3 - 2 male red ey

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 2TYU: The F1 flies described in question 1 were mated with brown-eyed flies from a true-breeding line....

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Fruit flies (Drosophila) were mated. Cross #1 - 2 male red eyes (se+), wild wings(ap+) X 4 female red eyes (se+), wild wings(ap+) Cross 2 - 2 male sepia eyes(se-), apterous wings (ap-) X 4 female red eyes(se+), wild wings (ap+) Write out a dihybrid cross and branch diagram for the F2 generatin
Using Drosophila notation: A.) Diagram the genotype of a female fly that is recessive for apterus (ap, chromosome 2), heterozygous wild-type for black (b, chromosome 2), recessive for forked (f, x-chromosome), and homozygous wild type for rosy (ry, chromosome 3). B.) Diagram the genotype of a male fly that is heterozygous for clot (ct) eyes (an autosomal gene) and has yellow (y) body color (x-linked gene).
You are doing a cross with Drosophila using the following two traits. Curly wings is dominant over straight wings, and round eyes is dominant over elliptical eyes. You cross a female fly that is known to be heterozygous for both genes with a male that is heterozygous for the wing gene but has elliptical eyes. This cross produces 74 flies with curly wings and round eyes, 61 with curly wings and elliptical eyes, 24 with straight wings and round eyes, and 21 with straight wing and elliptical eyes. Calculate the expected phenotype ratios for this cross, then use the chi-square test to see if the observed data are consistent with the expected numbers.
White eye color is a recessive sex-linked trait in fruit flies. If a whiteeyed Drosophila female is mated with a red-eyed (wild-type) male, what do you predict for the numerous offspring?
A cross is made between a white-eyed female fruit fly and a redeyed male. What would be the reciprocal cross?a. Female is XwXwand male is XwY.b. Female is Xw+Xw+and male is Xw+Y.c. Female is Xw+Xw+and male is XwY.d. Female is XwXwand male is Xw+Y
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In Drosophila, a cross was made between a yellow-bodied male with vestigial wings and a wild-type (WT) female(brown body and normal wings). The F1 generation consisted of WT males and WT females. The F1 males and females were crossed, and the F2 progeny consisted of 16 yellow males with vestigial wings, 48 yellow males with WT wings, 15 brown males with vestigial wings, 49 WT males, 31 brown females with vestigial wings, and 97 WT females. Based on these results, explain the inheritance of the two genes (i.e. autosomal or sex-linked, dominant or recessive).
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