In Drosophila, Lyra (Ly) and stubble (Sb) are dominant mutations located at locus 40 and 58, on chromosome 3. A recessive mutation with bright eyes was discovered and shown also to be on chromosome 3.  A map was obtained by crossing a female who was heterozygous for all three mutations to a male homozygous for the bright red mutation (temporarily will be called br).  The following data were obtained.   Ly       Sb      br       404                         +        +        br          2 Ly       +        br       75                           +        Sb      +          59 Ly       +        +        18                           +        Sb      br          16 Ly       Sb      +        4                             +        +        +          422   Diagram the cross and determine the location of the bright red mutation on chromosome 3

Q: Show how data from a two-point test cross can be used to distinguish between independent assortment ...

A: Linkage is the tendency for a pair of genes on the same chromosome to be transmitted down to subsequ...

Q: QUESTION 13 Normal (non-cancer) cells grewing in eulture DA Can be maietained infinitely (e are imme...

A: Plasma membrane is the outermost covering of all the living cells. Cancer is defined as uncontrolled...

Q: Explain the mechanism of the arm abduction and adduction at the shoulder joint together with the res...

A: Abduction and Adduction are the movement of the arms of the body away or towards the body line. When...

Q: Gymnosperms vs. Angiosperms 1) The gymnosperm seed results from and an angiosperm seed results from ...

A: Gymnosperms These are seed-producing plants such as conifers, gnetophytes, cycads, etc. Angiosperms ...

Q: The enzymes BamH I and Bal II recognise different sequences but leave the same sticky ends: BamH I: ...

A: Restriction enzymes or endonucleases are enzymes that recognise particular DNA sequences at the rest...

Q: Question 6 When light hits the special light-reactive molecular units inside rod cells, how do these...

A: Answer 6- One bond shifts positions from cis to trans orientation Answer7- cephalopods evolved eyes ...

Q: what are some of the advantages of knowing human anatomy and physiology

A: Human body is made up of several body structures which works in numerous ways to operate the body sy...

Q: Often reliquishing the young ones owing to food shortage is one of the common behaviour exhibited by...

A: Animal behaviour is the research of how animals navigate around in their surroundings, engage cooper...

Q: If you were an epidemiologist interviewing someone with an infectious disease that could lead to an ...

A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the beginn...

Q: In Drosophila melanogaster, a yellow-bodied (dark coloured) male with vestigial (underformed) wings ...

A: Drosophila malenogaster is a fruit fly from family drosophilidae. 

Q: Describe how an individual's genotype influences their chance of contracting malaria: Which individu...

A: Malaria is an infectious disorder due to the malarial parasite, Plasmodium falciparum. it's miles tr...

Q: QUESTION 17 Neurotranamtes Can induce Ca** flux in a muscie cell and thus muscle contraction are eff...

A: Answer  17)  C- neurotransmitters are released at the synapse

Q: the following processes except a.         alternative splicing to produce a secreted form of the T-...

A: Answer  1st answer - d) somatic recombination 2nd answer - d) CTLA4, SUPPRESSION  

Q: 2. Describe how an individual's genotype influences their chance of contracting malaria: Which indiv...

A: Introduction :- Genotype is defined as the sum total of all the genes , specifying the phenotypes or...

Q: Q1 The Hardy-Weinberg equation calculates the frequencies of different genotypes from the frequency ...

A: Hardy–Weinberg's principle It proposes that in a population, allele and frequencies of genotype will...

Q: Question 25 Which of the following statements is NOT true? O 45% of the incoming shortwave radiation...

A: The incoming solar radiation that hits the boundary between the Earth's atmosphere and outer space, ...

Q: Mechanisms that govern gene expression do not operate during______ . a. transcription c. translation...

A: Gene expression is a process in which a gene is expressed into a gene product. A gene is a piece of ...

Q: intermediate filaments 1. In eukaryotic flagella, the fibers that slide past one another due to the ...

A: Intermediate filaments: They anchors the nucleus and maintains its rigidity Microtubules: They aids ...

Q: 3. Red-green color blindness (b) is a recessive sex-linked trait. A colorblind male marries a normal...

A: * Red-green color blindness is also called as deuteranopia. * The affected individuals having this t...

Q: A 60-year-old woman with history of lung cancer is admitted for weakness and lethargy for 4 weeks. H...

A: Answer C --118mEq/L

Q: Distinguish sister chromatids from homologous chromosomes.

A: Homologous Chromosomes Diploid cells have two sets of chromosomes, which are referred to as homolog...

Q: 1. What are the pre-analytical phase in doing the Direct Fecal Smear? 2. Discuss the Cleaning and D...

A: Direct Fecal Smear is done for checking the presence of bacteria and parasites. 

Q: What is transpiration

A: A complex traffic material is moving in different directions in a flowering plant, with each organ r...

Q: Match the terms with the most suitable description. ___ operon                     a. makes a man ou...

A: The options are matched with the suitable description and they are given below

Q: 10. A student group decides to conduct an experiment testing the germination rate of radish seeds so...

A: Calculating results To calculate germination percent, divide the wide variety of healthful seedlings...

Q: What are the techniques in solving pedigree problems?

A: Techniques of solving pedigree problems:- A step wise guide to mastering pedigree questions: - Firs...

Q: 1. What is the significance of the formation of the blastocoel and blastoderm during blastulation? 2...

A: Blastulation It refers to the production of blastula during the early stages of animal embryonic dev...

Q: Explain the mechanism of the forearm flexion and extension at the elbow joint together with the resp...

A: Forearm flexion is the rotation of the radius and ulna anteriorly in the anatomic plane. It occurs m...

Q: PROBLEMS 8.1 An enzyme-catalysed reaction was found to be affected by two inhibitors A and B. The fo...

A: Introduction: Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions...

Q: Describe and compare cytokinesis in animal and plant cells

A: Cytokinesis is the process by which the cytoplasm of the cell divides after the M phase.  

Q: What are the differences of dogs from other kingdoms?

A: Identification :  Whittaker proposes 5 kingdom classification based upon cell structure,  organizati...

Q: Determine which of the following passages are arguments. For those that are, identify the conclusio...

A: Note- As we are allowed to answer only one question at a time. I will provide answer for only first ...

Q: If you will be discussed how synapse work and its feature, what will you say? How would you connect ...

A: Synapses are part of the network which links sensory organs in the peripheral nervous system to the ...

Q: It takes cycles of the Calvin cycle to form 1 glucose molecule.

A: Calvin cycle also known as carbon-fixation cycle or C3 cycle, is a series of biochemical reactions t...

Q: Predict or describe the absorbance or enzyme activity at:       pH = 2   pH = 14 Explain your predi...

A: The single most crucial asset of enzymes is the ability to increase the rates of reactions going on ...

Q: Which of the following processes involve random (chance) events?

A: The answer is all of the above. All the events as given,Genetic drift,Genetic recombination by cross...

Q: Name 10 cell parts and mark check (/) if present; mark cross (X) if absent. Example: Eukaryotic Euka...

A: Cell parts with their absence or presence in eukaryotic /prokaryotic cell or virus are given in foll...

Q: Extract from Soursop Leaves Can Prevent the Symptoms of Fibromyalgia"? a) The article doesn't discus...

A: The given article summarises the use of Annona muricata L. leaves for preventing fibromyalgia. It gi...

Q: Dinosaurs like edmontosaur how do they defend themselves from predators like trex? Trex has most pow...

A: Paleontology is the study about fossils and it grouped the living things present at that time and th...

Q: What is the benefit of alternative splicing? Tho nolarit of a protein can be adiusted for other circ...

A: Alternative splicing is the process of removal of introns and joining of exons in different combinat...

Q: nucleoid ribosomes plasma membrane flagella lysosome mitochondria nucleolus prokaryotic only eukaryo...

A: Prokaryotic and eukaryotic cell share few similarities however show so many difference in their stru...

Q: Photosynthesis in green and purple bacteria does not produce O2. Why? How can these organisms still ...

A: Photosynthesis is the process that occurs in the presence of sunlight.  

Q: 1. Describe what malaria is and where it is prevalent in what areas of the globe and in what habitat...

A: Often diseases are caused by various pathogenic microbes that are found in unhealthy and unhygienic ...

Q: Indicate your answer by writing Y if a characteristic and N if a non-characteristic. If the characte...

A: Eukaryotic organisms have well-developed nuclei surrounded by nuclear membrane while prokaryotes do ...

Q: Which of the following includes all of the others?a. homeotic genes c. SRY geneb. master regulators ...

A: Homeotic gene involves a group of those genes that control the pattern of anatomic developments in e...

Q: Neuron Z has GABA receptors. TRUE FALSE Neuron Y is hyperpolarized by Glycine. TRUE FALSE Neuron Z h...

A: Neurotransmitters are termed as a body's chemicals signals and messengers. 

Q: Coat color of dogs depend upon the action of at least two genes. At one locus a dominant epistatic i...

A: There are some important points: We know that genes are functioning independently on each other and ...

Q: Q2 The Hardy-Weinberg equilibrium remains valid in presence of geographic isolation. (True or false)

A: Hardy Weinberg equilibrium is used to describe population genetics. 

Q: 14. A previously well 18-year-old girl is admitted to the ICU because of altered mental status. She ...

A: When water enters the bloodstream from the colon, it quickly reaches osmotic equilibrium with the in...

Q: The world has been greatly affected by the pandemic caused by COVID-19. Countries all over the world...

A: The pandemic caused by the novel Corona virus has devastatingly affected the countries around the wo...