Express the genotypes of the adults in the cross

Assignment Help Biology
Reference no: EM136504

Q. In a particular species of guppy, tails can either be long or short and either feathered or straight. A cross between a true-breeding long, feather-tailed male guppy and a true-breeding short, straight-tailed female guppy produces progeny that all have short, straight tails.

a) Express the genotypes of the adults in the cross and the genotypes of all the progeny.

b) Find out the phenotypic frequencies of the progeny in an F2 generation.

c) A mating between a short feather-tailed female and a short, straight-tailed male from the F1 generation produces 30 short, straight-tailed guppies; 42 short, feather-tailed guppies; 10 long, straight-tailed guppies; and 14 long, feather-tailed guppies.

Analyze the data using the chi-squared fit test to determine if the frequencies of phenotypes are what would be expected from this cross.

Reference no: EM136504

Questions Cloud

Describe the physical changes that would occur in sim : What effect might this have on cell lineages during development. Describe the physical changes that would occur in SIM medium if you inoculated an organism that was negative for hydrogen sulfide but positive for indole production and motility.
Least two possible solutions to resolve paradox : Why might bad cars drive good cars out of the used-car market. Give at least two possible solutions to resolve this paradox.
Clarify the difference in their efforts to collect oxygen : Clarify the difference in their efforts to collect oxygen. Polychaetes have lateral, fleshy parapodia beset with numerous setae, and well developed head appendages such as jaws, tentacles and eyes. What function(s) do you think about parapodia serve.
Risk neutral or risk averse in each scenario : Explain the paradox of why new cars usually lose a large fraction of their market value the moment they are driven from the showroom. Identify the economic principle that explains this paradox.
Express the genotypes of the adults in the cross : Analyze the data using the chi-squared fit test to determine if the frequencies of phenotypes are what would be expected from this cross.
Utility function for wealth : Now suppose your utility functioin is U= (square root)Wealth. What is the maximum you will pay for the bike check-in now.
What is the reason for the symptoms : Roges Staubauch has severe arthritis and has been taking prednisone for two months. He isn't feeling well, complains of repeated colds, and has become really puff in his appearance. What is the reason for this symptoms.
Exchange rate between the swiss franc and the dollar : Calculate the purchasing power parity exchange rate between the Swiss franc and the dollar. Based on your calculation, is the SF overvalued or undervalued.
Suggest a hypothesis to explain this behaviour : Eastern tent caterpillars live in sizable groups in silk nests, or tents, which they construct in cherry trees. They are among the first insects to become active in the spring, emerging very early in the season-a time while daily temperature fluctuat..

Reviews

Write a Review

Biology Questions & Answers

  Determine the percentage of offspring displaying each trait

Determine the percentage of offspring displaying each trait. If a single, diploid G2 nucleus in an ascus contains 400 nanograms (ng) of DNA, after that a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many c..

  After system reaches equilibrium, what changes are observed

The mitochondria in them have a protein called thermogenin, which allows the flow of hydrogen ions through an inner mitochondrial membrane (bypassing the ATP synthase). Based on this and your understanding of cellular respiration, propose a mechanism..

  What is the initial stimulus

Is this an instance of a positive or negative feedback mechanisms? What is the initial stimulus? What is the result.

  Immune response to infectious disease

It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.

  Clinical microbiology assignment

Case Study: A female patient in ER with suspected toxic shock syndrome

  What is the general name for the group of bacteria

What is hydrogenase? How can this enzyme be used as part of a strategy to "improve" a Rhizobial strain used to inoculate legumes? Describe logic and provide the appropriate diagram.

  Describe the tonicity of the external solution

How would you answer to a person who argued that there is nothing to worry about because natural systems, through natural succession, will heal the wounds of human activities and restore the balance of nature.

  What phenotypic ratios are produced among male offspring

At another locus, sepia eyes are inherited as an autosomal (non sex linked) recessive. The presence of the white eye phenotype (x superscript w x superscript w in females, x superscript y in males) masks sepia phenotype, so regardless of the sepia ge..

  Sketch a graph showing the response to selection

Sketch another graph showing the response to selection if the heritability, h2, of pesticide resistance is 0.8. Illustrate an experiment that you could use to measure how this population of beetles responds to the selection that occurs when the popul..

  Write a scientific review of membrane proteins

Write a scientific review of membrane proteins

  What combination of chromosomes are possible in haploid cell

What combination(s) of chromosomes are possible in haploid cells following both divisions of meiosis? (Hint: remember independent assortment). A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S..

  What the ph of of cytosol at that time

Colchicine causes disassembly of microtubules. What result (if any) may you see on a giant algal cell in which cytoplasmic streaming is occurring.

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