A dominant mutation (B) on the X chromosome causes eyes in fruit flies to be oval. The recessive allele (b) causes the eyes to be round. Just as in humans, in fruit flies XY is male and XX is female. You take a male with oval eyes and cross it to a female with round eyes. What percent of the male offspring with have oval eyes? 100 % 50 % 75 % 25 % 00% Question 15 Listen A dominant mutation (B) on the X chromosome causes eyes in fruit flies to be oval. The recessive allele (b) causes the eyes to be round. Just as in humans, in fruit flies XY is male and XX is female. You take a male with oval eyes and cross it to a female with round eyes. What percent of the female offspring with have oval eyes?

STUDY GUIDE Name a A HUMAN TRAITS In your textbook, read about color blindness in Section 27:2. 1. Color blindness is a trait carried on the sex chromosomes. Let C be normal color vision and c b red-green color blindness. Use the diagrams to answer the questions. a. What is the sex of each of these people? Write either male or female on the blank below each. XX XX X Xa XX C b. Which are red-green color blind? c. Which have normal color vision? X X XXXXX B ①① X X XXXXX M a XaXa Date a d. Which has normal color vision even with the gene for color blindness? 2. a. Complete the following Punnett squares. The first one has been done for you. b. Using these colors, shade the following parts of the Punnett squares. Blue-normal females Yellow-normal males Red-color blind females Green-color blind males X X XXXXX Class D CHAPTER 27 X X XXXXX a Xalo E X X X×××× X oooolgolma 8 X X XXXXX a X a Xa 15 1

If you have a mutation in your skin cells from falling asleep in a tanning bed, how will this affect your offspring?   Question 10 options:   It will affect their entire body because their entire body grew out of the fertilized egg   It may affect them, depending on whether those particular skin cells are passed on to them   It will affect your offspring's skin cells only   It won't affect them because the mutation is not in a gamete   It won't affect them because mutations cannot be passed down to offspring

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Jenny's maternal uncle (her mother's brother) is affected with a rare x-linked disease, but no one else in the family is.  What is the percent chance that Jenny is a carrier of this disease? Enter a whole number between 0 and 100.  For example, if you enter 33, it means you think there is 33% chance that Jenny is carrier.

What is the probability of Sister 3 as a carrier of the death gene?

last one please help me on question 7 ?

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Dr. P was using Drosophila to follow the inheritance patterns of two traits: body shape and wing size. Dr.P began her experiment by crossing wild type, homozygous dominant, males with double mutant, homozygous recessive, females. She then performed a testcross by mating Fi generation males with double mutant, homozygous recessive, females and observed the phenotypes of the F2 generation. Shorthand of the different alleles is annotated as follows: Wild type round body shape allele = b* Wild type large wing size =w* Mutant rectangle body shape allele = b Mutant small wing size = w A) Complete the table by indicating the genotypes for each generation of male and female flies. Male Genotype Female Genotype P generation F, generation testcross When Dr.P characterized and counted the F2 phenotypes, she determined the following: Round-large Rectangle-small 332 flies Round-small Rectangle-large 357 flies Number of flies 344 flies 360 flies B) Using the data above, would you be surprised (yes…