3. Two Drosophila flies that had normal (transparent, long) wings were progeny, two new phenotypes appeared, dusky wings (having a semi- appearance) and clipped wings (with squared ends). The progeny we Females: Males: 179 transparent, long 58 transparent, clipped 92 transparent, long 89 dusky, long 28 transparent, clipped 31 dusky, clipped a) Provide a genetic explanation for these results, showing genotypes all progeny classes under your model. b) Design a test for your model.
Q: 6. What is the term for the number of offspring a population could produce if no limits were placed…
A: "Since you have posted multiple questions, we will provide the solutiononly to the first question as…
Q: c) If no genetic variation was observed within a particular population for a given trait, what will…
A: The percentage of a characteristic that may be accounted for by genes in a particular population is…
Q: 1. Differentiate Polyspecific AHG from Monospecific AHG. 2. What are the uses for Direct and…
A: Globulins are high molecular weight, water-insoluble proteins in the blood that plays an important…
Q: The culture medium that contains penicillin is a type of ________media.
A: Culture media were introduced in the 19th century and have since gone on to revolutionize…
Q: Mutation that results in death before the age of reproduction Mutation that results in an inactive…
A: Dominant mutations are those mutations which arise from the mutation of single copy of dominant…
Q: If the frequency of allele b is 0.3 for a population in Hardy-Weinberg equilibrium, what percentage…
A: According to the Hardy-Weinberg equilibrium, if no unfavourable influences exist, genetic…
Q: Describe and give an example of each of the following: a. Commensalism b. Mutualism c. Parasitism
A: Introduction : A field of science called ecology includes the domains of human science, population,…
Q: tomato, yellow flowers (Y) is dominant to white flowers (y). A true-breeding yellow flowered strain…
A: This is an example of monohybrid cross in which only one trait or character is involved. Pure…
Q: Which of the following alternative energy source(s) can replace glucose to provide energy for the…
A: Our brain is reliable upon glucose is a principal source of energy but human brain can utilize…
Q: A region where the temperature changes sharply on a short distance is called: 00 A temperature…
A: A temperature front is a region where two different air masses meet at the surface of the Earth. The…
Q: There is a situation in which a gene has five exons. Please draw four possible mature products of…
A: Alternative splicing is a biological process that involves the joining of exons from the same gene…
Q: List at least five phenomena that can alter expected Mendelian phenotypic ratios in genetic…
A: Mendelian inheritance is the process of transmission of characters from parents to offspring.…
Q: 7. Which of these hormones is a steroid hormone? glucagon testosterone angiotensinogen melatonin a.…
A: Introduction : Endocrine ganlds synthesize and secrete the hormones. Hormones act as chemical…
Q: Which of the following is most likely to be true of two modern organisms that have a distant…
A: Evolutionary relationships are the association between two organisms on the basis of their ancestral…
Q: Scenario: plant species has flowers that can be red, pink, or white. Flower color is controlled by…
A: According to the Hardy-Weinberg equilibrium, in a population genetics states that, if other…
Q: 1. Which hormone does the adrenal medulla secrete in response to stress? mineralocorticoids a. b. C.…
A: 1.Hormones are the low molecular weight, chemical substances which are produced in very small amount…
Q: The most common CF mutation is AF508; it accounts for approximate 70% of all mutant CFTR alleles…
A: Cystic fibrosis (CF) is an inherited disorder that causes severe damage to the lungs, digestive…
Q: For many years, wetlands were considered to be "wasted land", where 50% of wetlands in the U.S.…
A: Wetlands are the places where the soil is covered by water either salt or fresh. It may be…
Q: A protein is a glycoprotein and it is active when it is glycosylated. The gene of this protein was…
A: Glycosylation is a process by which carbohydrates are added to proteins. This process typically…
Q: Human cells normally have 46 chromosomes. For each of the following stages, state the number of…
A: a) During metaphase of mitosis, there are 46 chromosomes present in a particular cell. b) During…
Q: Two true-breeding pea plants are crossed. One parent is round, terminal, violet, constricted, while…
A: A tetra hybrid cross is a type of genetic cross that involves the inheritance of four different…
Q: explain the inheritance and parental genotypes that would produce the following dihybrid phenotype…
A: We need to identify the inheritance and parental genotypes that would result in the following…
Q: What are the factors affecting the pathogenicity of a parasitic amoeba? Explain.
A: Amoeba is a single celled or unicellular organism which occupy almost every major lineage of…
Q: 17. Which of these regulates basic homeostatic functions and contributes to endocrine control? a. b.…
A: The different parts of brain are associated with various functions. Also, the endocrine control…
Q: Which amino acids would you expect to find marked on the alpha helix? Alanine Isoleucine Leucine…
A: A prevalent motif in the secondary structure of proteins, the alpha helix (-helix) is a right-hand…
Q: What is the difference between Quadrant Streak Method vs. T- Streak Method? What is a Hemocytometer?
A: Answer : Q1 : T-Streak Method Quadrant Streak Method T streak uses three sections of the Petri…
Q: Which of the following is NOT true of deoxyribonucleic acid (DNA)? Stores genetic information that…
A: Introduction : The organic components known as nucleic acids can be found in the form of DNA or RNA…
Q: I am a nurse and like all nurses I got really busy last week and read the orders from the MD…
A: A 1% NaCl infusion, also known as normal saline, is a common medical treatment used to hydrate and…
Q: True or false ee. Dementia can be cured by calorie restriction and exercise. ff. In general, larger…
A: An abnormal condition of the body that disrupts the metabolic and physiologic function of the body…
Q: 12-All of the followings related to gram positive bacteria, except: A-E.coli…
A: Microorganisms can be used in research and biotechnology to understand fundamental biological…
Q: what is the human genome
A: Introduction : The gene is generally regarded as the fundamental component of heredity. Genes are…
Q: PART A. Redraw the table below on the whiteboard. Use your Biological Molecules Part 2 handout to…
A: Lipids and DNA are biomolecules or macromolecules which are made up of monomers. For example, lipid…
Q: (a) Compare a red blood cell and a typical animal cell based on the features given in the following…
A: Cells are the smallest part of the body of an organism and is the most important structural and…
Q: A molecule with hydroxyl functional group is a O hydrophobic. It will not be attracted to water…
A: A substituent or moiety in a molecule known as a functional group is responsible for the molecule's…
Q: of the federal agencies that regulate epidemiological risk; which one allows more risk, OSHA or the…
A: Epidemiological risk agencies are government agencies that are responsible for assessing and…
Q: define toxicology.. why is it important for us to consider the basic tenet of toxicology in our…
A: Toxicology is a multidisciplinary field that includes pharmacology, chemistry, and environmental…
Q: draw the cells in the given image
A: Understanding plant anatomy is important because it helps us understand how plants function, how…
Q: What is a gene? How many oxons are in the basic structure of a gene
A: A gene is in charge of determining an organism's physical characteristics and regulating its…
Q: 1. How are the endocrine and nervous systems similar? How are they different?
A: The endocrine system includes the endocrine glands that secrete substances. These are called…
Q: typical cyclical weather pattern in Monteverde caused the drier conditions that killed the golden…
A: Hypothesis is a statement which can be proved or disproved by experimentation. In contrast, the act…
Q: Explain what happens when there’s too much water in the blood stream. Refer to ADH as part of your…
A: Water is an essential product in our bodies. Water helps to keep hydrated our bodies and cells.
Q: 0 0. Figure 3. Electron micrograph of root cells.
A: Roots are one of the important part of the plants. They help in the absorption of water and minerals…
Q: 5 6. In running a fermentation to grow cells, all of the micronutrients are supplied in a vitamin…
A: Note:- Sorry, since you have posted multiple questions so we will be solving the first one for you…
Q: 4. In the table below, describe the roles of the extraembryonic membranes. Amnion Allantois Chorion…
A: Four membranes known as extraembryonic membranes aid in the growth of an animal's embryo. These…
Q: 3) When a rabbit breeder crossed an agouti with a Himalayan, the litter contained equal numbers of…
A: Given information A rabbit breeder crossed agouti with Himalayan. The progeny litter shows equal…
Q: State all the farming techniques or technologies humans use to grow a rice. What is the importance…
A: Rice is a cereal grain that is widely consumed around the world. It is a grass that is primarily…
Q: In terms of efficient reproductive strategy, which is better between articulate and inarticulate…
A: With exception of three particular taxa brachiopods are typically gonochoristic creatures with…
Q: b) Relate how the predator-prey cycle is a form of density-dependent population control.
A: ANSWER: Because of the inverse link that exists between the populations of predators and their prey,…
Q: What Moniclonal antibody topics can one do research on ?
A: Monoclonal antibodies are proteins that imitate the immune system's capacity to combat harmful…
Q: . Compared to innate immunity, adaptive immunity (A) has a response time of minutes to hours. (B)…
A: Our immune response protects us from the different pathogens and allergens. When an antigen…
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
- Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. A female homozygous for an X-linked allele can produce how many types of gametes with respect to that allele? c. A female heterozygous for an X-linked allele can produce how many types of gametes with respect to that allele?1. Please consider the following pedigree. I 1 II 1 a) Assume that colour is controlled by a single sex-influenced gene where green is expressed preferentially in males. Individuals I-1 and I-2 are homozygous for red and green respectively. Which individual/s in generation II will be red? b) If colour is a controlled by cytoplasmic DNA, which individual/s in generation II will be green?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…
- 19) In Drosophila fruit flies, the gene controlling bristle length is X-linked. Wild type flies have long bristles; short bristles is a recessive trait. You cross a long-bristled female fly to a short-bristled male fly. All the F1 progeny have a wild type phenotype. Next, you cross the F1 flies to produce an F2 generation. If there are a total of 200 F2 flies, how many of the F2 females are expected to have short bristles? V/100 Wild type fruit flies have grey bodies and straight wings. Yellow bodies and curly wings are both recessive phenotypes. The body color gene is X-linked; the wild type allele is designated XY+. The wing shape gene is autosomal; the wild type allele is designated C+. You cross a pure breeding yellow-bodied, curly-winged female with a grey-bodied, straight-winged male to produce an F1 generation. Use this information to answer questions X-Y below. You cross two F1 flies to produce an F2 generation. You select a female F2 fly that is phenotypically wild type. What…You have been given a virgin Drosophila female. You notice that the bristles on her thorax are much shorter than normal. You mate her with a normal male (with long bristles) and obtain the following F1 progeny1 3 short-bristled females, 1 3 long-bristled females, and 1 3 long-bristled males. A cross of the F1 long-bristled females with their brothers gives only long-bristled F2. A cross of short-bristled females with their brothers gives 1 3 short-bristled females, 1 3 long-bristled females, and 1 3 long-bristled males. Provide a genetic hypothesis to account for all these results, showing genotypes in every cross.In Drosophila, the recessive mutations hairy (h) causes a hairy body and curled (cu) causes curled wings. The two loci are on the same chromosome. You cross a hairy fly with a curled fly to make F1 progeny that are heterozygous at both loci. You then test cross the F1 female progeny to males that have the hairy and curled phenotypes. 1. Which of the following F2 phenotypes will be the product of recombination in the F1 female? [multiple answers possible] Group of answer choices wild type curled hairy, cur7led hairy
- In Drosophila melanogaster, red eyes are dominant over white and the variation for this characteristic is on the X chromosome. Vestigial wings (v) are recessive to normal (V) for an autosomal gene. Predict the appearance of offspring of the following crosses: XW/Xw V/v×Xw/Y v/v, Xw/Xw V/v × XW/Y V/v.7. Purebred lines of wild-type fruit flies (gray body and normal wings) are mated to flies with black bodies and vestigial wings. The resulting F1 offspring all have a normal phenotype. The F1 flies are crossed with flies recessive for both traits (black bodies and vestigial wings). a) What phenotypes and ratios of phenotypes would be expected in the F2? b) The actual F2 results are as follows: -Gray body, normal wings 965 - Black body, vestigial wings 944 -Black body normal wings 206 -Gray body, vestigial wings 185 How could you explain these results?: In Drosophila, yellow body is due to an X-linked gene that is recessive to the gene forgray body.(a) A homozygous gray female is crossed with a yellow male. The F1 are intercrossed toproduce F2. Give the genotypes and phenotypes, along with the expected proportions, of theF1 and F2 progeny.(b) A yellow female is crossed with a gray male. The F1 are intercrossed to produce the F2.Give the genotypes and phenotypes, along with the expected proportions, of the F1 and F2progeny.(c) A yellow female is crossed with a gray male. The F1 females are backcrossed with graymales. Give the genotypes and phenotypes, along with the expected proportions, of the F2progeny.(d) If the F2 flies in part b mate randomly, what are the expected phenotypic proportions offlies in the F3??
- Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type flies have red eyes, but another mutation, an X-linked recessive mutation causes white eyes. You cross a parental generation of males with vestigial wings with females that have white eyes. 1) What phenotypic ratio would you expect in the F1 generation from such a cross? What phenotypes do you observe in these flies? (e.g. males with red eyes and wild-type wings). 2) What phenotypic ratio would you expect in the F2 generation? What phenotypes do you observe in these flies?IN DROSOPHILA, AN X-LINKED RECESSIVE MUTATION, Xm CAUSES MINIATURE WINGS. LIST THE F₂ PHENOTYPIC RATIOS IF: A MINIATURE-WINGED FEMALE IS CROSSED WITH A NORMAL MALE AND A MINIATURE-WINGED MALE IS ● ● CROSSED WITH A NORMAL FEMALE. WHAT WOULD THE PHENOTYPIC RATIO FROM (A) BE IF THE MINIATURE- WINGED GENE WERE AUTOSOMAL? ASSUME IN ALL CASES THAT THE P1 INDIVIDUALS ARE TRUE-BREEDING.6. In Drosophila melanogaster, the wild-type eye colour is dark red. A pure-breeding mutant strain with white eyes also exists. When reciprocal crosses are made between (i) a white-eyed male a wild-type female, and (ii) a white-eyed female a wild-type male, the progeny are as follows: (1) P: White-eyed male x red-eyed female F1: red-eyed males and females F2: 100 progeny; 27 red-eved males, 24 white-eyed males, 49 red-eyed females (ii) P: red eyed male x white-eyed female F1: white-eyed males and red-eyed females F2: 100 progeny; 23 red-eved males 26 white-eyed males, 28 red-eyed females, 23 white-eyed females. How do you interpret these data?