Dragons are diploid organisms whose scale color is controlled by a single gene. A true-breeding green-scaled dragon mates with a true-breeding gray-scaled dragon. Their many progeny are all green-scaled. The green-scaled F1 progeny interbreed. What genotypic and phenotypic ratios are expected in the F2 generation?
Added by Miriam M.
Close
Your feedback will help us improve your experience
Madhur L and 55 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
What phenotypes and genotypes of dragons would you use as the parental generation? GGSS and ggss are the genotypes. Green, yellow, scaled, and scaleless are the phenotypes. b. What would be the phenotype(s) of the F1 generation dragons? c. Write out the genotypes of the F1 dragons that will be used to breed and give rise to the F2 generation. d. What gametes can be produced by the F1's? e. What will be the expected phenotypic ratios among the F2 offspring?
Madhur L.
In dragons, the allele for fire breathing is dominant (F). Dragons can be fire breathers or non-fire breathers. Show the genotypes and phenotypes of all possible dragons. 2. If a heterozygous fire-breathing dragon is crossed with one that does not breathe fire, what is the probability that the firstborn will be a fire-breather? 3. Also in dragons, wings are a dominant trait (W). If you crossed two wingless dragons, what percentage of their offspring would you expect to have wings? 4. Two winged dragons produce offspring that do not have wings. Identify the genotypes of the parents. How do you know? 5. In rabbits, grey hair (G) is dominant to white hair. Also in rabbits, black eyes (B) are dominant to red eyes. GG = gray hair BB = black eyes Gg = gray hair Bb = black eyes gg = white hair bb = red eyes What are the phenotypes of rabbits that have the following genotypes: Ggbb ____________________ ggBB ________________________ ggbb ________________________ GgBb ________________________
Anand J.
In dragons, the locus for fire color has two alleles. The wild type allele for red fire is dominant over the mutant allele for blue fire. A true-breeding red fire male dragon is crossed with a mutant female dragon. All offspring in the F1 display the mutant phenotype. A male and female from this F1 generation are crossed. All offspring in the F2 generation have red fire. What genetic phenomenon is demonstrated by this locus? What is the ratio of genotypes in this F2 generation?
Keemin L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD