1. In Drosophila, yellow body is due to an X-linked gene (XY) that is recessive to the gene for grey body (X+). A heterozygous gray female is crossed to a yellow male. Draw out this cross and show the genotypes and phenotypes of the offspring in your answer. 2. Draw out the results for a cross between a gray male and a yellow female showing both the phenotypes and genotypes of the offspring.
Q: The pedigree shown below illustrates the inheritance pattern for a trait controlled by a single…
A: The pedigree analysis shows the mode of inheritance of a genetic trait.
Q: Draw a eukaryotic mRNA that has been fully processed. Label the key parts including the Kozak…
A: The eukaryotic RNA is formed from the eukaryotic DNA by the process of transcription.
Q: The force of muscle contraction may be altered by increasing/decreasing the stimulus interval…
A: Muscle Contraction: It is the activation of tension-generating sites within muscle cells.
Q: Give a part of the body that uses the 2nd class lever system
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 1. Explain in full the mechanism of apoptosis in cells with severe DNA damage that cannot be…
A:
Q: To describe: Range of environments inhabited by prokaryotes and the methods by which they acquire…
A: All living organisms are made up of several types of cells, which are the structural as well as…
Q: A body is found submerged with the facial bones exposed, torso with some bone exposure, and bones of…
A: The stage 4 of decomposition i.e. skeletonization is the condition here as per the given…
Q: Which structure would differentiate an angiosperm from a gymnosperm? A. stamen B. ovule C.…
A: Angiosperms have seeds which are found within the ovary and are visible in the fruit. They also are…
Q: what is the adavantage of prokaryotic fission over sexual reproduction.
A: Reproduction is the well outline mechanism through the parents are defined to produce offspring.…
Q: hypochondrium, periodic body temperature rises of up to 38°C, periodic icteric skin color changes,…
A: Coronary artery disease and gallstone disease result from the accumulation of cholesterol, in the…
Q: Cnidarians and flatworms lack a circulatory system. True False
A: Cnidarians lacks any organs i.e they don't have any circulatory system or other system. And they…
Q: TASK N At an altitude of 6000 meters, a climber has dizziness, severe weakness, intensive headache,…
A: A person's ability to withstand high altitudes is determined by many factors, including physical…
Q: explain carbon flows 1500 AD and 2000 AD
A: Carbon flow is one of the biogeochemical cycles and carbon is one of the main composition in…
Q: 1) Explain the use of QTL (quantitative trait locus) as an analytic tool, including a specific…
A: Introduction The classical Mendelian traits are quantitative in nature which means the traits which…
Q: Refer to the image and answer the questions 1. How are Okazaki fragments joined together? 2. Where…
A: The replication fork is a structure that forms within the long helical DNA during DNA replication.…
Q: Place a picture of an electron transport chain and mark the following using the appropriate letter:…
A: In the mitochondrial electron transport chain there are four complexes that helps pumping H+ ions…
Q: 1. What kind of disease is COVID-19? 2. What is the causative agent of COVID-192 3. How does a…
A: Introduction The virus can directly effect our physical well-being and health by causing respiratory…
Q: After catching her archenemy, Xena has lived a long and productive life. She is now 85 years old and…
A: Xena is 85 years old and suffered gradual changes to her rib cage and have reduced motility of the…
Q: Explain the role of prokaryotes in nutrient recycling.
A: The cycle of nitrogen is usually described as the process of atmospheric nitrogen that is being…
Q: whereas Conover and Levinton's hypothesis suggests that Present's hypothesis predicts that organisms…
A: Option b is correct Higher altitude species have higher capacity for growth at same environment…
Q: bioactivities of aflatoxin, PAH and halogenated compounds that could led to cancer development in…
A: Fish feed The fish feed has a direct relation to the quality and development of the fish. The fish…
Q: To maintain our body tissues with enough carbohydrate intake must be a. 50-100g b. 50-150g c.10-50g…
A: I gave you the answers below. As per our guideline i can answer only first three questions but i…
Q: Please state which letter is the correct answer. 1 letter (answer) only.
A: Inflammatory response It is occurred when tissue is injured by trauma, bacterias, toxins etc.
Q: Briefly trace and discuss the flow of blood in the human kidney.
A: Dear student, as per the Bartleby guidelines I will answer the first question. Please post the…
Q: 3. A condition known as Fibrodysplasia Ossificans Progressiva is a rare and genetic disease where…
A: The condition i.e. Fibrodysplasia Ossificans Progressiva is a rare condition which is also known as…
Q: Given a cross between these two parents: BbCcDDEEFfGgHhJj x BbCcddEeFfGgHHjj where traits B, E, H,…
A: According to Bartleby guidelines , we are supposed to answer first three subparts in case of…
Q: Non-injectable fluids used for washing of surgeons' gloves and instruments during use should be…
A: Sterilization : It is a process through which microbes are killed and It prevents the growth of…
Q: tumor consisting of different of mixture germ cells
A: Germ cell tumors are growths of cells that form from the reproductive cells. Most of the germ cell…
Q: PROPOSE A TAXONOMIC TOOLS SOLUTION FOR THESE PROBLEMS In the evolution divergence of…
A: Biodiversity Biodiversity is a wide term including all the living organisms (bacteria, plants,…
Q: Inhalation of few arthroconidia of Coccidioides immitis, are sufficient to produce primary…
A: When the virus enters the host, it may disguise antigenic characteristics so that the immune system…
Q: The type of skeleton in earthworms that allows it to move forward or backward_________.
A: In good soils, whether in your garden or a meadow, earthworms are common. They are slimy,…
Q: Deletions in the mitochondrial DNA can result in parasitic mitochondria which do not respire but…
A: This can be explained on the basis of use and disuse of organs. The organs that are not usually…
Q: Provide a thorough anatomical description of how the nervous system transforms light energy in the…
A: The light is mapped as a picture on the surface of the membrane by activating a series of sensitive…
Q: For your performance output, choose one from the given tasks. 1. Select four endocrine glands you…
A: Q.1 S.No Endocrine Gland Disorders Cause Treatment 1. Pituitary gland - It is one of the…
Q: A heart beats 72 times per minute with a total of 10mL of blood pumped with each contraction. What…
A: Cardiac output is the amount of blood pumped each minute by the heart. It is calculated by…
Q: 00 10 Frog Late Gastrula 2
A: Introduction The frog egg is a massive cell, with a large volume. The egg will be transformed into a…
Q: The flora of the Core Cape Region is regarded as a global biodiversity hotspot. It is exceptional in…
A: The Cape Floristic Region is a floristic region located near South Africa's southern tip. It is the…
Q: 7. Name the biological significance of pain sensitivity for human body,
A: Introduction Pain:- It is an uncomfortable feeling that tells you something may be wrong, It can…
Q: Biology Which of the following is NOT a requirement of natural selection?
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Species within a community interact with each other in a variety of ways. Match each scenario with…
A: Species interaction Species interaction describes the relationship between species in the same area…
Q: Most of our movements are classified as tetanic summation titanic twitches
A: Body movement Movement in simplest terms is defined as the state of changing the position of a body…
Q: dentify two things that always have all but one of the seven characteristics of living things, and…
A: LIVING THINGS:- living thing are those that have different abilities to sustain in nature and are…
Q: Match the antimicrobial drug class to its action. 1. Macrolides A. Inhibit cell wall synthesis 2.…
A: Introduction:- Antimicrobial agent, any of a wide range of chemical substances and physical agents…
Q: Question 3 Select one answer. T cells come in several varieties. Cytotoxic T cells are important…
A: T cells come in several varieties. Cytotoxic T cells are important because they can become activated…
Q: father has Huntington disease. a. What is the probability that Joe will also develop the disease?…
A: Introduction Huntington disease (HD) is an autosomal dominant disorder inherited condition that…
Q: نقطة واحدة * tumor consisting of mixture of different germ cells hydronephrosis O Balanitis…
A: This is an mcq type question but question is not clear. I am going to define each and every…
Q: If the G locus were 50 or more map units from the centromere, what types and proportions of gametes…
A: Recombination Recombination is an event in cell division(meiosis and mitosis) in which the exchange…
Q: The first whole-life phylogenies based on sequence data were estimated on the basis of small…
A: Phylogeny is a bifurcation diagram or tree that shows evolutionary relationships between different…
Q: Identify the chaperone proteins that facilitate peptide binding to newly synthesized MHC I proteins…
A: MHC or Major Histocompatibility Complex. MHC is a group of genes that code for proteins found on…
Q: Briefly discuss the REDUCTIVE TCA CYCLE.
A: The reductive TCA cycle (rTCA) is a biochemical pathway found in bacteria and other anaerobic…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A heterozygous individual has a _______ for a trait being studied. a. pair of identical alleles b. pair of nonidentical alleles c. haploid condition, in genetic termsIn cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?. The normal eye color of Drosophila is red, but strains inwhich all flies have brown eyes are available. Similarly,wings are normally long, but there are strains with shortwings. A female from a pure line with brown eyes andshort wings is crossed with a male from a normal pureline. The F1 consists of normal females and short-wingedmales. An F2 is then produced by intercrossing the F1.Both sexes of F2 flies show phenotypes as follows:38 red eyes, long wings38 red eyes, short wings18 brown eyes, long wings18 brown eyes, short wingsDeduce the inheritance of these phenotypes; useclearly defined genetic symbols of your own invention.State the genotypes of all three generations and thegenotypic proportions of the F1 and F2.Unpacking Problem 31Before attempting a solution to this problem, try answering thefollowing questions:1. What does the word normal mean in this problem?2. The words line and strain are used in this problem.What do they mean, and are they interchangeable?3. Draw a simple…
- . A white-eyed female Drosophila is mated with a redeyed (wild-type) male, the reciprocal cross of the oneshown in Figure 15.4. What phenotypes and genotypesdo you predict for the offspring from this cross?2. In Drosophila sp. Red eyes are dominant over white eyes. Normal wings are dominant over vestigial wings. Homozygous red eyes normal wings females were crossed with homozygous white eyes and vestigial wings males. The F2 generation after a test cross are as below Phenotype Red eyes, normal wings White eyes, vestigial wings Red eyes, vestigial wings White eyes, normal wings Amount 1670 1590 425 435 a) Are the wings and eyes colour genes linked? b) Show all the crosses c) Calculate the recombination frequency value. d) What is the distance between the wings and eyes colour genes?2. a. A Drosophila male from a true-breeding stockwith scabrous eyes was mated with a female from atrue-breeding stock with javelin bristles. Both scabrous eyes and javelin bristles are autosomal recessive mutant traits. The F1 progeny all had normaleyes and bristles. F1 females from this cross weremated with males with both scabrous eyes andjavelin bristles. Write all the possible phenotypicclasses of the progeny that could be produced from the cross of the F1 females with the scabrous, javelin males, and indicate for each class whether it is arecombinant or parental type.b. The cross in part (a) yielded the following progeny:77 scabrous eyes and normal bristles; 76 wild type(normal eyes and bristles); 74 normal eyes andjavelin bristles; and 73 scabrous eyes and javelinbristles. Are the genes governing these traits likelyto be linked, or do they instead assort independently? Why?c. Suppose you mated the F1 females from the crossin part (a) to wild-type males. Why would thiscross fail…
- 0. In Drosophila, the gene for cinnabar eye color is onchromosome 2, and the gene for scarlet eye color is onchromosome 3. A fly homozygous for both recessivecinnabar and scarlet alleles (cn/cn; st/st) is white-eyed.a. If male flies (containing chromosomes with thenormal gene order) heterozygous for cn and st allelesare crossed to white-eyed females homozygous forthe cn and st alleles, what are the expected phenotypes and their frequencies in the progeny?b. One unusual male heterozygous for cn and st alleles,when crossed to a white-eyed female, produced onlywild-type and white-eyed progeny. Explain the likelychromosomal constitution of this male.c. When the wild-type F1 females from the cross withthe unusual male were backcrossed to normal cn/cn;st/st males, the following results were obtained:wild type 45%cinnabar 5%scarlet 5%white 45%Diagram a genetic event at metaphase I that couldproduce the rare cinnabar or scarlet flies among theprogeny of the wild-type F1 females.8. An insect from a strain breeding true for white eyes (RRww) was crossed to an insect from a strain breeding true for cream eye (rrWW). The F1s all had red eyes. o The Fls were intercrossed to produce an F2 generation that consisted of 175 red- eyed:62 cream:81 white eyed. A sqyT * O qyT ( 0 sqy x 0 sqyT (b i. Provide the genetics of inheritance of this trait. ii. Provide the genotypes for the F1s and F2s of this cross. boold B sqyt dirwydad a ot drid svag sqyt boold a sy diw mow A 8 oyd zodio ad bas boold A sayt zad ono dist ori ed of misls nom tertib 9. In wild sunflowers, populations occur that are either yellow flowers (wild type) or white flowers. One variety of true breeding white flowered plants was crossed to another pure strain of white flowered plant. The resulting F1 progeny were yellow flowered plants. When the F1 progeny were intercrossed, the offspring were 56 yellow flowered and 44 white flowered. From the results of these crosses, how many genes control the flower…1. The allele G for yellow stigma is completely dominant to green (g). Supposingtwo strains of autotetraploid plants are available and their genotypes are as follows:GGgg – in this plant the gene is close to the centromereGggg – in this plant the gene is far from the centromere If these two plants are crossed:a) provide the gametes that can be obtained from the two plants;b) provide the genotypic and phenotypic ratios of the offspring. 2. Consider the illustration below. Diagram the configuration you would observe at Anaphase I if crossing-over happens within the inversion. (IMAGE ATTACHED)
- 4. In Drosophila melanogaster the wild-type eye çolour is dark red. A pure-breeding mutant strain with brown eyes also exists. When brown-eyed flies are crossed to wild-type flies all of the Fi progeny are dark red-eyed. F1 flies were intercrossed and the F2 analvsed. In a total of 200 F2 flies there were 141 wild- type flies and 59 brown-eyed flies. There was no difference in the result between male and female F2 progeny. Some F1 flies were test crossed to brown-eyed flies and of 88 progeny, 48 were wild- type and 40 were brown-eyed with no differences between the sexes. - Interpret these results as fully as possible. b) A cross between two wild-type flies gave progeny all of which were wild type. When they were test crossed to flies the following results were obtained: vg e i) % of the test crosses gave wild type, westigal ebony, vestigal and ebony in a 1:1:1:1 ratio. ii) 4 of the test crosses gave all wild type. iii) % of the test crosses gave yestigal and wild type in a 1:1 ratio.…3. The allele b gives Drosophila flies a black body and b+ gives brown, the wild-type phenotype. The allele wx of a separate gene gives waxy wings and wx+ gives nonwaxy, the wild-type phenotype. The allele cn of a third gene gives cinnabar eyes and cn+ gives red, the wild-type phenotype. A female heterozygous for these three genes is testcrossed, and 1000 progeny are classified as follows: 5 wild type; 6 black, waxy, cinnabar; 69 waxy, cinnabar; 67 black; 382 cinnabar; 379 black, waxy; 48 waxy; and 44 black, cinnabar. Are these three genes linked? If so, draw a map of the chromosomes in the heterozygous parent, showing the order, arrangement, and map distance between the linked genes.в IUA Callbri 12 3 4 12. In Drosophila, gray body color is dominant over ebony body color, while long wings are dominant over vestigial wings. Work the following crosses through the F2 generation, and determine the genotypic and phenotypic ratios for each generation. Assume that the P1 individuals are homozygous. a. Gray, long x ebony, vestigial b. Gray, long x gray, vestigial !! !! lili 田