Q: 9
A: Calico cats are any cats which have tricolor coats. The coat color for the cats is present on the X…
Q: A cross between two individuals with different phenotypes that resulted in approximately 50% of each…
A: Mendel was the pioneer of genetic crosses. He performed his experiments on pea plants. He gave the…
Q: 2) Coat color in cats is determined by genes at several different loci. At one locus on the X…
A: Here, the female is tortoiseshell. Genotype of tortoiseshell is given here as- x+xo. Off springs(…
Q: 13. In humans, red-green color blindness is recessive to normal sight. The gene for this trait is…
A: Colour blindness is a genetic condition where individuals have difficulty distinguishing certain…
Q: 18 The genes dumpy(dp) and clot(cl) are linked on chromosome II of Drosophila. A heterozygous female…
A: Test cross, in genetics, plays a major role in determining the genotype(dominant or recessive) of an…
Q: The gene for curly/straight hair in guinea pigs is located on the X chromosome. The dominant "R"…
A: Given Hair trait is X linked phenotype. Curly hair (R) is dominant over straight hair (r)
Q: 5. In humans, one type of color-blindness, an inability to distinguish between red and green, is…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 11. In cats, the fur color allele is located on the X chromosome. Cats can have alleles for black…
A: In case of cats , gene that code for coat colour is present on the X chromosome. Two fur colour are…
Q: You find two different notch-winged fruit flies in your normally smooth-winged collections. After…
A: Notched wing trait is recessive homozygous. Suppose that it is denoted by nn Smooth winged…
Q: 5.Suppose that the same recessive daf-d mutation in the N2 strain landed 20m.u. from the SNP367…
A: Option d is the answer. All the F1 individuals are in heterozygous condition. Given genetic map…
Q: 10. Examine the pedigree from a family with a genetic disease and answer the questions below: 1:1…
A: Pedigree analysis is a graph that depicts a family tree and shows which family members are…
Q: 8. contrast the inheritance of linked genes with unlinked genes
A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…
Q: 5. Why is it possible for a trait that is not present in the present generation to appear in the…
A: How does new trait appear in next generation that is not present in existing generation.
Q: Albinism, lack of pigmentation in humans, results from an autosomal recessive gene Two parents with…
A:
Q: Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower…
A: In the given context, there are two independent genes, denoted as A and B, which play a role in the…
Q: 16. If at a bi-allelic genomic locus, there are two alleles A, and C, such that A can mutate into C…
A: A bi-allelic genomic locus is a region of a chromosome where there may be two distinct alleles, or…
Q: Albinism in humans is controlled by a recessive gene (c). From marriages between two normally…
A: Albinism is the genetic disease occured due to abnormal melanin production. Melanin produced is…
Q: 1. 4. 6. Which mode(s) of inheritance could be RULED OUT for this smaller version of the previous…
A: The genes can de be differentiated into autosomal and sex-linked depending on their location. The…
Q: 4. In fruit flies, opaque wing color is due to an X-linked dominant version of a gene. A female with…
A: The exchange of genetic material between two non sister chromatids is called crossing over..Crossing…
Q: 5. In Drosophila flies, the allele b gives a black body, and the allele b* gives brown, the…
A: Introduction The term allele refers to a variant of a gene. It is normal in genetics for genes to…
Q: You are making a genetic map and use a cross to measure the distance between genes H and J as…
A: A physical genetic map shows relative distance between genes on a chromosome.
Q: 6. The famous geneticist, T.H. Morgan, carried out a series of experiments on linkage mapping in…
A: Disclaimer: "Since, you have multiple questions, only first question to be answered according to the…
Q: . Why is the relationship P=p2 used for homozygous loci?
A: Introduction :- Homozygous for a given locus refers to diploid and polyploid cells that have the…
Q: 3. The genes for the human blood types MN and Ss are closely linked genes on chromosome 4. A sample…
A: A. To estimate the gametic and allele frequencies, we first need to calculate the total number of…
Q: Which male was the father of Ling-Ling's baby? Explain how you know.
A: The cross between two individuals (male and female) leads to the production of a progeny with a…
Q: The Drosophila fruit fly genes ebony (e) and claret (ca) are linked on chromosome 3. In Drosophila,…
A: Given that, the genes of the Drosophila fruit fly ebony and claret are linked on chromosome 3. The…
Q: 1. The dpy-5 gene is on Chromosome I, rol-6 on Chr II, and him-5 on Chr V. We know that the mutation…
A: Given:The dpy-5 gene is on Chromosome I.The rol-6 gene is on Chromosome II.The him-5 gene is on…
Q: Picture a scenario where the maternal and paternal chromosomes randomly align all on the same side…
A: ChromosomesThese are thread-like structures that are present in the nucleus of cells. They…
Q: 5. A horse breeder finds that one of the stallions has a genetic defect that affects the motility of…
A: Probability means the chance of occurrence of a certain event when expressed quantitatively. It is a…
Q: The following is a linkage map of chromosome 5 for three genes in tomato: Lf W Lf (normal) vs. If…
A: Crossing over is the process by which non-sister chromatids of homologous chromosomes share genetic…
Q: What is the most likely order of the linked genes R, S, and T if the distance between R and S is 22…
A: A linkage map, also known as a genetic chromosome map, is a linear graphic representation of the…
Q: 13 - Assume that you have a garden and some pea plants have solid leaves and others have striped…
A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…
Q: Normal color vision (XM) is dominant over color blindness (X"). Suppose a color-blind man fathers…
A: Following Mendelian inheritance, the daughters receive one of their X chromosomes from the mother…
Q: same basic method. Procedure Make up your own genotype example and work out the crosses. 1 Traits: 2…
A: The Punnett Square is a simple method of predicting the probable outcome of genetic crosses. If your…
Q: What is the processes of mitosis and meiosis indicating where the similarities lie and in which…
A: Hello, thank you for your questions, according to our policy I am answering only the first question.
Q: 10. A population geneticist collected 400 deer mice from the wild. All have normal ears. She raised…
A: Answer - The laboratory mouse, also known as a lab mouse, is a tiny rodent from the order Rodentia…
Q: 6. What is the most likely order of the linked genes R, S, and T if the distance between R and S is…
A: Linked genes are the genes that are present very closely to one another on a chromosome. Due to this…
Q: 9. differentiate between linkage and recombination
A: Introduction:- Linkage refers to the close proximity of genes or other DNA sequences on the same…
Q: The discovery of chromosome banding in eukaryotes has greatly improved our ability to distinguish…
A: Polymorphism is usually known as the discontinuous genetic diversity that occurs among members of a…
Q: .Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The…
A: Hemophilia is a genetic bleeding disorder that happened by change or mutation in genes. In this…
12. what A wild type allele that supports wild-type function in heterozygous organisms?
Allele
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome.
Human are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Heterozygous
The presence of 2 different alleles at a particular gene locus.
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- 7. In rats, the allele for kinky hair (h) is recessive to the allele for normal hair (H), and the allele for short tail (t) is recessive to the allele for long tail (T). The genes for hair kinkiness and tail length are found close together on the same chromosome (i.e., they are linked). "Backalley Bob" is a rat who is heterozygous for both hair type and tail length. Bobs father had kinky hair and a long tail, and was homozygous for both traits. Bob met and married "Riverboat Rita," a kinky-haired, short-tailed rat. a. Give the genotype of cach of the following: Backalley Bob:_ Backalley Bob's father: Riverboat Rita: b. Draw a Punnett square to illustrate the cross between Backalley Bob and Riverboat Rita. Remember-the genes are linked. Assume that there is no crossing over. c. Give the predicted genotypic ratio of the offspring of this cross, if there is no crossing over. d. Draw a chromosome diagram to show Backalley Bob's cell in prometaphase I of meiosis. Assume no crossovers have…21)Item 10 10 of 15 > A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow body (y), and cut wings (c). A wild-type tri-hybrid female was crossed with wild-type males and only the male offspring were tallied. On the basis of the results shown below, which of the choices shown best represents the genetic map of the three loci on the X-chromosome? Phenotype Male Offspring +у ct 63 W + + 60 w y ct 16 + + + 11 + + ct 4 w y + + у + 247 w + ct 197 5.5 mu 21.5 mu >< ct 5.5 mu 21.5 mu y ct 21.5 mu 5.5 mu ct 4.5 mu 20.5 mu y ct 20.5 mu 4.5 mu ct Submit Request Answer
- 4. The ruffed chicken has an under-chin wattle. A smooth wattle (S) is dominant over a wrinkled wattle (s). A red wattle (HR) is incompletely dominant with a white wattle (HW) so that an individual with HRHW will have a pink wattle. A chicken with a wrinkled red wattle is mated to a homozygous chicken with a smooth white wattle. What is the genotype and phenotype of the chicks?6. A 12 year old girl has mental retardation, ataxia, and a history of seizures. She does not speak but engages in frequent and excessive laughter. Cytogenetic analysis shows a deletion involving 15[del(15)(q11;q13). Genetic analysis in this patients family and in several other families with same syndrome shows that affected family members uniformly inherit the chromosome 15 with deletion from their mothers(rather than from their fathers). Tjis phenomenon is best explained by which of the following mechanisms? (A) codominance (B) Fragile sites (C) Genomic imprinting (D) Mitochondrial inheritance (E) X-linked inheritance7. In gene therapy an attempt is made to transfer a "normal" gene into the cells of a person who lacks copies of the "normal" gene. Why would scientists and the government be more receptive to somatic gene therapy than to germline gene therapy? 8. Answer the following questions for the two following pedigrees In Pedigree A, is the red highlighted trait dominant or recessive? Why? а. b. What is the genotype of individual C? In Pedigree B, is the red highlighted trait dominant or recessive? Why? а. d. What is the genotype of individual D? Pedigree A Pedigree B :mele =foncle I fenole toffected effected 9. Make a pedigree for each of the following situations. For each individual, write the individual's genotype (when possible) next to the individual's symbol (e.g. O x*Y, Gg): a. Two parents do not have cystic fibrosis and they have a daughter with cystic fibrosis and a son who does not have cystic fibrosis. The daughter grows up and she mates with a male who does not have cystic fibrosis.…
- 4. In cattle, polled (absence of horns) is dominant over horned and roan is the result of the heterozygous condition of the genes for red and white coat color. (Neither red nor white is dominant so in the heterozygote, both are expressed.) Assume both traits are on separate pairs of autosomes. What proportion of the offspring of a roan heterozygous polled bull and a roan horned cow would be expected to be roan and horned?12.By what mechanism does aneuploidy arise? 13.What is a Barr body? How does the fur pattern of a tortoiseshell cat arise? 14.What kind of inheritance does the pedigree show? 15. Under what conditions should a genetic counselor be consulted? AKA F4 F5 F6 F7 PrtScr F8 F9 E1020. The following pedigree shows a family with an unusually high incidence of skin cancer. Examination of karyotypes from healthy, noncancerous cells in affected individuals reveals that they are heterozygous for a deletion in chromosome 12p. On the other hand, cancerous cells from the same individuals are homozygous for a deletion in chromosome 12p. What can you conclude about this form of skin cancer? a. Parents are likely transmitting a deletion of a proto-oncogene to their children b. Parents are likely transmitting a deletion of a tumor suppressor gene to their children c. Loss of heterozygosity is likely to have occurred in affected individuals d. a and b e. ba
- 1. If a particular species of plant is made up of cells that each have 30 separate chromosomes, 15 of which appear to be paired in terms of size and shape, what is the “ploidy” of this plant? What is the term for these similar chromosomes? What is the ploidy of a different plant species in which the cells also have 30 separate chromosomes, but there seem to be 10 triplets of similar size and shape? How many different alleles can the same gene of a tetraploid plant have?6). To investigate the genetic control of locomotive behavior in the diploid nematode, Caenorhabditis elegans, eight "wiggly" mutants were isolated, which wiggle in an uncoordinated way rather than smoothly gliding. These eight mutants were crossed together in all possible pairwise combinations, yielding the results summarized in the table above (+ means that all the progeny were wild type, and m means that all the progeny showed the wiggly mutant phenotype). Organize the eight mutations into con lementation groups, each consisting of a group of mutations affecting the same gene. 1 2 3 4 5 6 7 8 1 E N+E 2 3+1 m + m 4 5 + m m E+ + + EE 6 ++E E+ +EE m m + + + + + + + + + m 7 8 ++4 ∞+E +E m m ++ E1.Tay-Sachs disease is caused by loss of function mutation in a gene on chromosome 15 that codes for an enzyme. The disease is an inherited autosomal recessive condition which is found amongst Ashkenazi Jews of Central European origin. In this population, 2 in 4,900 children are born with the disease. What proportion of the population are carriers (heterozygotes) for this disease? 2.Skin colour in dolphins is determined by a single gene showing incomplete dominance giving rise to 3 phenotypes Brown, Pink & White. A survey of a large population of dolphins was carried out and the phenotypes recorded. However, a student who had some of the data stored on their phone fell overboard and unfortunately the data was lost. The only data saved was that the brown homozygous dominants (BB) were 64% of the population . a) What would be the percentage of pink heterozygotes and white homozygotes? b) What percentage of the gametes that give rise to the next generation of dolphins in this…
