What genotype must a female child have

Assignment Help Biology
Reference no: EM13945082

Part A: Couple 1 comes into your office. The husband has normal vision; the wife is heterozygous for the color-blindness allele.

What percentage of Couple 1's male offspring will be color blind? What percentage of their female offspring will be color blind?

Part B: Couple 2 comes into your office. The husband is color blind; the wife is homozygous for the normal vision allele.

What percentage of Couple 2's male and female offspring will be color blind?

Part C: Couple 3 comes into your office. The husband is color blind; the wife is heterozygous for the color-blindness allele.

What percentage of Couple 3's male and female offspring will be color blind?

Part D: Review the results you obtained for the female offspring of the three couples.

Based on your results for the female offspring, predict whether color blindness is a dominant or recessive trait. Explain your reasoning.

Part E: Complete the Punnett squares below to determine the possible genotypes of each couple's male and female offspring. (X represents the normal color vision allele. X represents the color-blindness allele. Y represents the Y chromosome, which does not carry the color-vision gene.)

Part F: Review the results you obtained for the female offspring of all three couples. Then, look at the female offspring (the offspring with two X chromosomes) in your three Punnett squares.

What genotype must a female child have in order to be color blind?

Part G: Review the results you obtained for the male offspring of all three couples. Then, look at the male offspring (the offspring with a Y chromosome) in your three Punnett squares.

What genotype must a color-blind male have? Explain.

Part H: Think it over

Explain why color blindness occurs more commonly in males than females.

Part I: Think it over

Based on your Punnett squares, determine whether a son can inherit color blindness from his father. Explain your reasoning.

Reference no: EM13945082

Green swordtails are sexually dimorphic

Green swordtails are sexually dimorphic: males have a long, swordlike projection from their tails, and females have rounded tails. In choice experiments, female swordtail gr

The earth''s largest phylum is arthropoda

The Earth's largest phylum is Arthropoda, including centipedes, millipedes, crustaceans, and insects. The insects have shown to be a particularly successful class within the p

Which is needed for the first three stages of cellular

Under anaerobic conditions (a lack of oxygen), the conversion of pyruvate to acetyl CoA stops. Which of these statements is the correct explanation for this observation?

Ligament and bones

The symptom of numbness of the palmar region often associated with carpal tunnel syndrome is caused by: Compression of the long extensor muscles of the hand. Compartmentalizat

Define methods for placing organisms in appropriate taxa

Why is the gene coding for ribosomal RNA (rRNA) used for establish phylogenetic relationships and how does this compare to previous methods for placing organisms in appropriat

How many milliliters of glacial acetic acid

How many milliliters of glacial acetic acid (17.M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW= 82.0 g mol^-1) to get a final pH of 5.00 an

What is the main chemical compound found in sewer gas

What is the main chemical compound found in sewer gas? Why the presence of Thiobacillus (Acidibacillus) species can cause sewer pipe (cement or iron) corrosion? Please expla

Compare repressive effects of chromatin and dna modification

Compare the repressive effects of chromatin and DNA modifications with the repressive effects of RNAi. Including: a basic overview of RISC and RITS repressionand mechanisms or

Reviews

Write a Review

 
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd