What is the possibility that a black f2 is heterozygous

Assignment Help Biology
Reference no: EM136047

Q1. Body colour gray of Drosophila is dominant and recessive allele produces black. A testcross of a wild type female produces 52 black and 58 types F1. If the females are crossed to their F1 black brothers, what genotypic and phenotypic ratios will be expected in the F2?

Q2. Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous?

Reference no: EM136047

Questions Cloud

What must be true of the xenomas : Many infected animals are induced by the parasitic microsporidians to develop huge cells, known as xenomas, which are full of spores. Given their large size, what must be true of the xenomas.
What genetic basis of erminette pattern is suggested : You now grow Daphnia and Bosmina together. Suppose they remain limited by phytoplankton. What genetic basis of erminette pattern is suggested? How would you test your hypothesis.
Write down a balanced equation for this reaction : Suppose you are a geneticist and you're asked to examine the effects of a radiation leak that occurred at a facility in Iraq several years ago. How will you assess the level of mutations caused by this leak.
Precautions for use of vitamin c : Within an essay response, discuss the next concepts: an antioxidant's function, free radicals and their effect on the human body, sources of vitamin C, optimal delivery system for vitamin C, and precautions for use of vitamin C.
What is the possibility that a black f2 is heterozygous : Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous.
What is the likely organism causing this infection : Is this organism recovered more frequently as a nosocomial pathogen, as a community-acquired pathogen, or at similar rates in both settings? Elucidate your choice.
What will harold and kumar discover : Darwin understood how natural selection works in the presence of a population with many variant types. What does that variation consist of? How does variation arise? How does it spread during the population.
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..
Explain dosage strategy in terms of the negative feedback : Explain this dosage strategy in terms of the negative feedback control of cortisol secretion and receptor function in hormonal pathways.

Reviews

Write a Review

Biology Questions & Answers

  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.

  A review on advanced glycated end products (ages)

This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.

  Plastic as a soil stabilizer

Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.

  Principles of microbiology

This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.

  List the biologic functions

Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?

  Biologic function relationships

Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.

  Case study on patient in the haematology laboratory

Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.

  Use of pcr and genetic approaches in biotechnology

The use of PCR and genetic approaches in biotechnology

  Describe the role of this enzyme in honey

Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.

  Genetic problems

What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?

  Prepare an essay on nosocomial infection

Prepare an essay on nosocomial infection.

  Monitoring and recording the blood pressure

To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.

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