According to the question, 9 out of 16 offsprings are with red eyes and normal wings. So, out of 72 F2 flies, their number would be = (9/16)×72= 0.5625×72 = 40.5.
Answer. 40.5
Thanks
please please answer this Suppose that you have 72 F2 flies from a cross, and expected...
In flies, red eyes are dominant to brown eyes, while long wings are dominant to dumpy wings. You will cross a true-breeding fly with red eyes & dumpy wings to a true-breeding fly with brown eyes & long wings. a. What genotype & phenotype do you expect in the F1 generation? b. Draw a Punnett Square which represents the F2 generation & give phenotypic ratios.
1.) In a cross involving Drosophilia melanogaster, an F2 population included 272 flies with long (normal) wings and 60 flies with dumpy wings. Calculate X2 and fill in the blanks below. Do these results approximate a 3:1 ratio? Phenotype O E (O-E) (O-E)2 (O-E)2/E Normal Dumpy Totalts X2=8.4980 a. In interpreting this X2 value, you have ___________ degrees of freedom. b. In this case, do you accept/reject the hypothesis that these data approximates a 3:1 ratio? c. What is the...
Normal eye color in flies is red. Mutant flies have brown eye color. Similarly, normal wing length is long. Mutant flies have short wings. A female true breeding fly with brown eyes and short wings is crossed with a true breeding male with red eyes and long wings. In the F1 the female flies are red eyed and long winged. The male flies are red eyed and short winged. F1 males are crossed to F1 females Both sexes of F2...
6. In Cross 1, a yellow eyed, long wing fruit fly from a pure breeding strain is mated to a red eye, short wing fruit fly from a pure breeding strain. All of their offspring (F1) had red eyes and long wings. In Cross 2, one of the F1 offspring is mated to a fly with yellow eyes and short wings, and this cross gave the following F2 population: 194 flies with long wings and red eyes, 796 flies with...
You are working with recessive mutations at two genes in Drosophila: the fused mutation fu causes fused wings and the garnet mutation g causes bright red eyes. You cross a true-breeding strain of wild-type flies with a true-breeding strain with garnet eyes and fused wings. You then cross an F1 female to a true-breeding male with fused wings and garnet eyes. #1) Choose which phenotype(s) in the F2 progeny result from recombination: A) fused wing, wild-type eye B) wild-type wing,...
1. In Drosophila (fruit flies) Curly (c) wings are recessive and normal (C) wings are dominant. If you cross curly wing flies with homozygous normal wing what is the expected genotype and phenotype of the F1 generation? What is the expected phenotypic ratio of the F2 generation?
1. How do you get the expected from the observed in order to perform a chi square with the following data? Original cross was between a mutant male that had white eyes and vestigial wings and a female that had red eyes and normal wings. F1 Progeny Class Data Results Phenotype (Eye, Wing) Wild Type eye, Wild Type wings Wild Type eye, Vestigial wings White eye, Wild Type wings White eye, Vestigial wings Male 242 2 1 8 Female 250...
Please, need help with this problem ! ( Cell Biology )
Thank You
Problem 9 - Panoptes In Ancient Greek mythology, the giant Argus was attributed the nickname "Panoptes" ("all seeing") because he had 100 eyes spread all over his head and body. And our friend Argus Panoptes, herem is afflicted with ubiquitous expression of the eyeless gene Aristotle and molecular biology Nowadays, researchers induce mutations in animal models to better understand mutations in humans In fruit flies, a genetic...
The phenotype of vestigial (short) wings (vg) in Drosophila melanogaster is caused by an autosomal recessive mutant allele that independently assorts with an autosomal recessive mutant allele for hairy (h) body. A parental cross was made between a fly that is homozygous for normal wings with a hairy body and a fly with vestigial wings that is homozygous for normal body hair. The wild-type F1 flies were crossed to each other and produced 1536 offspring. The phenotypes of the F2...
The phenotype of vestigial (short) wings (vg) in Drosophila melanogaster is caused by an autosomal recessive mutant allele that independently assorts with an autosomal recessive mutant allele for hairy (h) body. A parental cross was made between a fly that is homozygous for normal wings with a hairy body and a fly with vestigial wings that is homozygous for normal body hair. The wild-type F1 flies were crossed to each other and produced 1536 offspring. The phenotypes of the F2...