4. There exists a magical forest where animals from mythology live. One of these animals is a Pegasus (horse with wings). However, despite having wings not all Pegasus are able to fly. Every Pegasus has the gene to fly, however, this gene is only 80% penetrant. In this forest of 250 animals how many can fly? Multiple choice. Chose the one best answer. (a) 50 (b) 80 (c) 160 (d) 200 (e) 225 Show your work.
Q: Human genetics 1 In humans, widow's peak (W) is generally dominant to a straight hairline (w), and…
A: Heterozygotes have both the dominant and recessive alleles. In heterozygous conditions, the…
Q: 5. The native flora garden features ecosystems that can be found within how many miles of New York…
A: The Native Flora Garden consists of plant species that are found in New York. The metropolitan city…
Q: 2. Imagine a combination of microevolutionary mechanisms other than mutation/se- lection. How do you…
A: Microevolution is characterized as the adjustment of the allele frequencies over the long haul in a…
Q: 1)Flower colour in snapdragon plants is a single gene trait controlled by two alleles. In a…
A: The dominant allele can be defined as the type of allele which masks the expression of other alleles…
Q: Explain why you cannot always apply this statement in genetics: “What you see is what you get.”
A: Genetics is a discipline of biology that studies genes, genetic diversity, and heredity in living…
Q: 3) Eye color in chimpanzees is coded for by one gene with two alleles, “A" and “a". “A" is dominant…
A: A person displaying a dominant phenotype might have two copies of the dominant allele or one copy of…
Q: advantageous for an organism to have two copies of every gene?
A: Diploid organisms have two copies of every gene, one they inherit from the father and another one…
Q: 5. The Flemish breed of rabbits have an average weight of 3600 grams. The Himalayan breed has a mean…
A: Genes store genetic information in the form of DNA, which may be converted into functional proteins…
Q: Step Example Perform a cross between a fly that is known to be heterozygous for both traits and a…
A: Recombination frequency measures the genetic linkage between a set of alleles/genes and is used to…
Q: It’s very rare for someone with two X chromosomes to have DMD. Explain how a person with two X…
A: Duchenne muscular dystrophy is inherited in an X-linked recessive pattern. Males have only one copy…
Q: 3. Based on the following data which of the following would be considered: a. Recessive? b.…
A: Usually in a diploid (2n) organisms every chromosomes have two copies. So, every genes have also two…
Q: If you were at risk of a fatal disease such as Huntington’s disease and only the 95% accurate…
A: To describe Whether or not to take the genetic test, if you were at risk of a fatal disease such…
Q: 4. When the F1 bees were backcrossed to the inbred resistant line produced 4 types of offspring in…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: 6: After hundreds or even thousands of generations both alleles are still common in those of African…
A: There are few important point which are as follows : Each genes exist in alternative forms known as…
Q: 3. In humans, hemophilia is a sex-linked recessive trait. If a female who is a carrier for…
A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…
Q: 2. In a population of fruit flies, 250 are homozygous dominant for red eyes and 500 are heterozygous…
A: Organisms that are under constant environmental pressure tend to evolve. Genetic equilibrium occurs…
Q: 4.Eyelash length is an inherited trait. In the human population, there is an eyelash length gene.…
A: Alleles are already form of a gene that that are located on the same locus of a homologous…
Q: 2. Consider the problem of finding the shortest route through several cities, such that each city is…
A: Genes are the basic units of heredity in living organisms and are sequences of nucleotides in an…
Q: 1. What is an allele? 2. What is a point mutation? 3. How are point mutations related to alleles?
A: A mutation is a sudden heritable change in DNA sequence which corresponds to an altered amino acid…
Q: 5. In cats the allele for short hair is dominant over the allele for long hair. A short haired male…
A: Mendelian inheritance: This refers to the inheritance of those traits that are controlled mainly by…
Q: 1. The alternate form of a gene is A. Alternate type B. Recessive character C. Dominant…
A: Genes are DNA sequences of nucleotides that code for RNA, which in turn codes for a protein. In the…
Q: There has been research which proved there is NO gene type for
A: The question above mentioned are related to genetics .
Q: 9. (a) A child has a rare recessive disease due to a mutation in Gene X; both his parents are…
A: Humans have two types of chromosomes, autosomes and allosomes or sex chromosomes. There are 22 pairs…
Q: 4. In goats, a recessive gene causes the goats to "faint" when they are startled. A farmer has a…
A: A dominant gene will express even when one copy of the gene is present. A recessive gene on the…
Q: 15) A company provides genetic analysis to people who want to learn more about their ancestors. One…
A: The offsprings are produced as a result of sexual reproduction in case of human because there are…
Q: 1. Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly…
A: Introduction The relationship between two versions of a gene is referred to as dominant. Individuals…
Q: 3. In humans, hemophilia is a sex-linked recessive trait. If a female who is a carrier for…
A: Genetics is the study of how traits are passed from one generation to another. This includes but is…
Q: 4. Some genes with recognition sites only have two alleles. How useful would a gene like this be for…
A: DNA fingerprinting is a chemical test that shows the genetic makeup of a person or other living…
Q: 2) We hear of a mother with 10 natural children, 8 of whom have blue eyes while the other two (one…
A: Genetics is a field of study that deals with heredity and genetic factors. Eye color is a genetic…
Q: 5. In humans, the alleles for blood type are designated IA (A-type blood), I" (B-type blood) and i…
A: The ABO blood group is based on the presence of specific antigen on the plasma membrane of RBC and…
Q: 3. Fruit flies are small flies attracted to the smell of fermenting fruit. Red eyes are dominant in…
A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…
Q: 2. Fill in the blanks below using these choices: dominant, genes, genetics, heterozygous, pure,…
A: The alleles are generally of dominant and recessive type and some other forms like codominant are…
Q: But when you cross a "Texas Beauty" yellow with the yellow variety "Jealousy," you get a 9:7 ratio…
A: Dominant allele is an allele which shows its expression even in the heterozygous condition ;along…
Q: 1A. Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly…
A: Note- Since you have asked multiple question, we will solve the first question for you. If youwant…
Q: 2. The outward appearance (picture/gene expression) of a particular trait in an organism is referred…
A: Gene expression is defined as the process where the instructions that are present in the DNA are…
Q: 5. In cattle, the RR genotype calls for a red cow: the WW for a white cowç and the RW calls for roan…
A: Phenotype is an organism's observable traits while genotype is it's genetic content.
Q: 4. In goats, a recessive gene causes the goats to "faint" when they are startled. A farmer has a…
A: A monohybrid cross is a genetic cross between two individuals who possess homozygous genotypes, or…
Q: 3. In fruit flies, the gene for wing shape has an unusual allele called 'curly (designated cy). The…
A: Given details are as below, cycy = Normal straight wings (homozygous) Cycy = wings curl up…
Q: 1. If traditional breeding methods already allow an individual plant or animal to have the desired…
A: Traditional breeding involves combining traits from different populations inside a species and…
Q: 10. A cat with broad pigmented bands and whorls mates with a tabby cat heterozygous for the tabby…
A: Albinism is a rare genetic disorder where you aren't born with the usual amount of melanin pigment.…
Q: 1. Honeybee workers undergo a resistant behavioral pattern called hygienic behavior. Susceptible…
A: The organism that carries an individual action in response to the stimulus or the environment that…
Q: 7. You've completed several two gene mapping experiments and found the followingt results in cM. a-b…
A: Gene mapping Gene mapping is the method to describe the locus and distance between genes.
Q: 9.) In humans, when a dark-skinned person reproduces with a very light-skinned person, their…
A: When a cross is made between two sets of genes that results in different observed traits, this is…
Q: 1. The first genetic test used a short DNA sequence that was closely linked to the Huntington’s…
A: Genetic tests for Huntington's disease can be performed at any age of an individual, even at the…
Q: Explain how you would design an experiment to answer this question. • Predict what types of…
A: Drosophila melanogaster is often used as a model organism for genetics research. Several different…
Q: 4. The flowers of 4 o'clock plants may be red, pink or white. Reds crossed to whites only produced…
A: Mendel uncovered the fundamental laws of heredity. His experiments demonstrated that the inheritance…
Q: How might you use your knowledge of linkage to select a German shepherd population that has all the…
A: To understand How to you use your knowledge of linkage to select a German shepherd population that…
Q: 15. Hair color in trolls is controlled by a single gene. Assume blue hair (B) is dominant to green…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 4. If a certain type of trait in a family or clan is considered by most people to be “better” or…
A: Inherited traits are those traits which are which can be passed from parent to offspring as per…
Q: Set up a simple cross that falsify the idea of the 3 colors of Labrador dogs being due to a simple…
A: Labrador are of three coat colours, black, brown and yellow. Genetically most dominant colour is…
Step by step
Solved in 2 steps
- 1. Describe what you think would happen if a male mouse acquired a mutation that gave it tan or a sandy colored belly AND female mice wanted to mate with this more about 1 % more than a male mouse with a white belly? 2. Now, suppose that the females were really wild about the sandy colored belly of this male mouse. The females wanted to mate with this lucky mouse about 10% more than males with a white belly? What would happen to the frequency of sandy colored bellies in this population over time? 3. What is the selective pressure at work in questions 1 & 3? 4. Describe what this statement means: "The division of humans into races by using skin color is an arbitrary social construct." 5. What are melanosomes? Name the cell type that produces melanosomes. 6. What happens to melanosomes after they are released into keratinocytes? 7. List the three factors that work together to create the range of skin colors we see today. 8. Describe the main function of keratinocytes and of…1. A new species of animal called the rekamriliob has been found in the wild. The lab you work in has been tasked with studying its genetics. So far, there have been 2 main phenotypes found in the wild. Through selective breeding, your lab has determined that the gene for purple color (P) is dominant to the gene for golden color (p). Another lab has determined that the thick limb trait is dominant to the thin limb variety. If you breed a purebred purple thick limbed rekamreliob male with a golden thin limbed female, you get 100% thick limed offspring that are purple in color. If you take two of these organisms and breed them together, please predict the following. Assume that rekameliobs lay an average of 32 eggs. The gametes produced if the genes are unlinked b. genes The expected numbers of the possible phenotype in the offspring with unlinked The gametes produced if the genes are linked (list all possibilities, and show which ones are the result of crossing over) d. List the…4.Eyelash length is an inherited trait. In the human population, there is an eyelash length gene. There are two possible variants of this gene—an allele for long eyelashes (> 1cm) and an allele for short eyelashes (1 cm or less). The allele for long eyelashes is dominant (L) and the allele for short eyelashes is recessive (l). An individual who is heterozygous for eyelash length would have which of the following genotypes? A.Short eyelashes B.Ll C.LL D.Long eyelashes
- 10. A cat with broad pigmented bands and whorls mates with a tabby cat heterozygous for the tabby gene. Their first kitten is albino. What is the probability that their next kitten will also be albino? [Choose ] [Choose ] 0.375 What is the probability that their next kitten 0.75 will be mackerel-striped? 0.625 0.33 0.5 0.25 0.875 1.0 <19.Eyelash length is an inherited trait. In the human population, there is an eyelash length gene. There are two possible variants of this gene—an allele for long eyelashes (> 1cm) and an allele for short eyelashes (1 cm or less). The allele for long eyelashes is dominant (L) and the allele for short eyelashes is recessive (l). An individual who is heterozygous for eyelash length would produce which of the following gametes? A. None of the gametes would have the eyelash gene; gametes do not have eyelashes. B. The proportion of gametes receiving each allele would be random; the process of meiosis is very disorganized and chromosomes are not separated in an ordered fashion. C. All gametes would have the l allele. D. Half of the gametes would have the L allele and half of the gametes would have the l allele.25., Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). How many individuals are dd? 7636 13140 1600 20776
- 3. People who like certain purebred dog breeds, such as German shepherd dogs, are often saddened to learn that some individuals of these purebred breeds have specific genetic defects that might be due to single mutations that are present in the breed. For example, German shepherd dogs often suffer from hip dysplasia. Not all German shepherd individuals seem to have this mutant allele for hip dysplasia. How might you use your knowledge of linkage to select a German shepherd population that has all the phenotypic traits you want with this breed while no longer having a genetic predisposition to hip dysplasia?1. It's a very well known fact that most dragons do not breathe fire, and it's also well known that alleles that enable fire breathing are recessive to the wild-type Sweet Breath phenotype. However, it's unclear how many different genes when mutated cause the fire breathing phenotype. To answer this question you use four different strains of dragon and perform a series of crosses. Your strains are the Hungarian Horntail (Strain A), the Norwegian Ridgeback (Strain B), the Romanian Longhorn (Strain C), and the Swedish Shortsnout (Strain D). All strains are true breeding for a single homozygous recessive mutation that allows them to breathe fire. Cross #1 Hungarian Horntail (A) X Norwegian Ridgeback (B) = F1: All Sweet Breath Cross #2 Romanian Longhorn (C) X Swedish Shortsnout (D) = F1: All Sweet Breath Cross #3 Swedish Shortsnout (D) X Norwegian Ridgeback (B) = F1: All Firebreathing Cross #4 Romanian Longhorn (C) X Hungarian Horntail (A) = F1: All Firebreathing How many genes are…5. The table shows the combinations of alleles that result in human ABO blood types. A biology student explains that two parents with type AB blood can produce children with any one of the four possible human blood types. Is the student's explanation correct? Blood Type A B AB O Blood Types Combination of Alleles JAJA or Ai BIB or 15 JA/B ii * REQUIRED No, the parent's genotypes cannot be determined, so predictions about children's traits cannot be made. No, the parents cannot produce children with type O blood. No, the parents can produce children with only type AB blood. Yes, these parents have alleles that can produce combinations resulting in all blood types. E 7
- Step 1 The branch of Biological Sciences that deals with the study of genome is known as Genomics. The genome is the complete set of genetic information present in an organism. As per the guidelines, the answers for the first 3 questions are being provided here. The student is requested to upload the remaining questions separately. Step 2 Question 1: GWAS or Genome-wide Association Study is a method for identifying the genes that are responsible for giving an organism its phenotype. This method is very useful because - • It provides information on the SNPs that need our attention in order to know about the genetic risk for a particular condition in an organism. • The SNP identification makes it possible to understand the mechanisms that might cause the genetic risk and also might provide a scope to clarify the differences between the alleles. • This method can find genomic variants that cause a particular trait or disease in an individual. GWAS can solve problems such as - Finding out…You are a studying the genetic basis of horn color in unicorns. Gene C determines the color of pigment destined for the horn by converting a pink precursor into a purple pigment. C- individuals make purple pigment whereas cc individuals accumulate pink precursor. Gene D ensures the deposition of the pigment into the horn cells, such that D- individuals have a colored horn (purple or pink), whereas dd individuals have a white horn. You breed two purple horned unicorns to each other (CcDd). Assuming Gene C and Gene D are unlinked, what is the probability that the baby unicorn has a purple horn? Please express your answer to 2 decimal places (e.g. 0.69).1. Imagine a population of 100 snails in which the shell colour is controlled by two alleles: B (black) and b (yellow). (1) What is the total number of loci for shell colour gene in this population? (ii) In the snail population described above, 20 out of the snails are yellow (bb) and 80 are black (BB or Bb). Of the 80 black snails=, 30 are homozygous and 50 are heterozygous. How many loci for this gene are occupied by the B allele? (ii) What is the frequency of the B allele? (iv) Assuming that sexual reproduction takes place with random mating, no gene flow and no selection, what will be the frequency of yellow snails in next generation of the population described above? (v) What will be the frequency of the b allele in the next generation of the snail population described below