In a drosophila , the allele for normal wing length is dominant over the allele for short wings. In a population of 1000 individuals, 360 show the recessive phenotype. How many individuals would you expect to be homozygous dominant for the trait.
Q: In Mexican hairless dogs, a double dose of a dominant allele may be lethal. What phenotype should…
A: The condition where two identical genes are present in an individual for a particular character, Is…
Q: In guinea pig, rough coat is daminant (R) to smooth coat () and black coat (B) is dominant to white…
A: The full genetic knowledge of an organism is known as its genotype. The observed properties of an…
Q: In birds there are two genes that both influence beak
A: Beak colour - Black = BB, Bb Grey = bb Beak shape - Sharp = SS, Ss Rounded = ss Genotype of male =…
Q: A scientist predicts that the kittens born with a congenital birth defect will be 25% based on the…
A: The hypothesis is null as there is no statistical difference between the expected result and the…
Q: In Drosophilia, the allele for normal length wings is dominant over the allele for vestigial wings…
A: Answer: HARDY WEINBERG PRINCIPLE = It is the principle stating that the genetic variation in a…
Q: In some cats, the gene for tail length shows incomplete dominance. When a cat with a long tall is…
A: Answer. The given gene for tail length shows incomplete Dominance. In incomplete Dominance, none of…
Q: In an alien species, blue hair (B) is dominant over red (b) and curly hair (C) is dominant over…
A: Thank you for the question Answer :-The fraction of the offspring will be homozygous for both…
Q: In mice, gene A is epistatic to gene B. Dominant allele "A" allows for pigment to be transported to…
A: Epistasis is the type of gene interaction in which a gene masks or interferes in the expression of…
Q: How many mice would you expect to be homozygous dominant and heterozygous for
A: Dominant and recessive alleles alleles that can be expressed only when present in homozygous…
Q: There is genre in chickens that controls whether their eggs will be brown or white .Assuming that…
A: Genetics is the branch of science that deals with the study of gene and their inheritance from one…
Q: In four-o'-clock plants, the allele for red flowers is incompletely dominant to the allele for white…
A: Incomplete dominance means when one allele is not completely showing it's own character when present…
Q: In a population of 50 flies in HWE, 18 flies have a recessive trait that causes small wings. How…
A: Hardy Weinberg Equilibrium (HWE) or the Hardy Weinberg principle explains the state of a population…
Q: In a population of 3000 fruit flies, 270 of them contain white eyes. White eye color is a recessive…
A: Hardy Weinberg equilibrium will br used to calculate the allelic frequency of the various phenotypes…
Q: Imagine that hair color in cats is controlled by one gene with two alleles: "T" and "t". "T" codes…
A: Dominant allele is represented by a capital letter. Dominant allele masks the expression of…
Q: Give an example of a family tree that shows the F^1 generation and F^2 generations of your mother…
A: The family tree is used to identify the genetic disorders which are inherited from one generation to…
Q: In Drosophila, an allele causing vestigial wings is 12.5 mu awayfrom another allele that causes…
A: In genetic mapping, the recombination frequency is considered as a measure of distance between the…
Q: In a group of cheetahs, some individuals have a spotted coat and others have a king coat. In this…
A: A gene is a unit of hereditary present in thousands on the strands of DNA(deoxyribonucleic acid).…
Q: Two brown bears have cubs in late spring. The mother bear has the phenotype for long front claws.…
A: Genotype is mentioned to the genetic makeup of an individual and phenotype refers to the physical…
Q: In a group of cats, some individuals have short fur and others have long fur. In this group, the…
A: A phenotype is observable traits of an individual, such as height, eye colour, and blood type. The…
Q: n guinea pigs, an allele for rough fur (R) is dominant over an allele for smooth fur (r), and an…
A: Phenotype of RRBB/ RrBb will have Rough and black coat Whereas Phenotype of rrbb will have smoth…
Q: A rare recessive mutation causes rabbits that are normally white to be pink. If one in a hundred…
A: Given: A rare recessive mutation causes rabbits that are normally white to be pink . White -…
Q: ack coat is dominant over white coat in guinea pigs. A homozygous black pig is ated with another…
A: Heterozygous genotypes are when both the alleles are different and homozygous is the condition when…
Q: In domestic cats, the dominant allele A encodes pigmented fur and the recessive allele a encodes…
A: There are certain traits in animals that follow the Mendelian pattern of inheritance. These animals…
Q: In a group of Labrador retrievers, some individuals have black fur and others have brown fur. In…
A: A genotype is a collection of individual's genes. This term can also refer to the two alleles…
Q: In this family tree, individuals with the trait are shown in black. Circles represent biological…
A: Pedigree represents the familial representation of individual for a particular trait.
Q: What is complete dominance A) When one Allele produces the phenotypic expression. B) When two…
A: Hi, Thanks For Your Question. Answer : Correct Option Is A Explanation : Complete Dominance Is…
Q: Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB…
A: A particular trait having four or more phenotypes then more than two alleles for that trait must…
Q: A gardener received a pea plant from her neighbor, and she wants to know its genotype. The neighbor…
A: homozygous dominant trait =round peas (RR) homozygous recessive trait=wrinkled peas (rr)…
Q: Brown fur vs white fur. Say that the alleles for fur color (brown or white) are written using the…
A: Introduction Mono-Hybrid cross deals with the one contrasting trait at a time which are governed by…
Q: Suppose you do a cross between two parents who are both heterozygous for two traits, such as petal…
A: Dihybrid cross A cross is made between similar species having different or same phenotype but only…
Q: A green bird that has a white off spring A yellow bird that has a green parent A blue bird that has…
A: Allele Allele are the different form of a single gene located on same position on sister…
Q: In guinea pigs, rough coat (R) is dominant to smooth (r). A rough coat is crossed with a. smooth…
A: We can perform a dihybrid cross between the rough coated and smooth coated parents to find out the…
Q: In Labrador dogs, coat color is controlled by the genotypes of two genes. In one gene, the dominant…
A: The interaction between multiple genes occurs in different cases and it determine the specific…
Q: In a population of 50 flies in HWE, 12 flies have a recessive trait that causes blue wings. How many…
A: Hardy-Weinberg principle states that in a population, the allelic frequency of all the gene pool is…
Q: Imagine that feather color in parrots is controlled by one gene with two alleles: "P" and "p" 'P" is…
A: The genotype of Green parrot can be PP or Pp as it is dominant The genotype is blue parrot is only…
Q: What percent of offspring will be homozygous recessive if the genotypic ratio is 4:0:0. (For your…
A: Let's take an example:- This is a question that requires a punnet square:- Consider gene 'G' coding…
Q: What is incomplete dominance? A) When one Allele produces the phenotypic expression. B) When two…
A: Allele is an alternative form of genes occupying corresponding position on homologous chromosome.A…
Q: Length of fur in guinea pigs is due to a dominant trait, while short-haired guinea pigs are due to a…
A: Dominant traits are the traits that are expressed in subsequent generations. Recessive traits skip…
Q: Brown fur vs white fur. Say that the alleles for fur color (brown or white) are written using the…
A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…
Q: In a herd of deer, 98 out of the 200 deer exhibit a white-hair, recessive phenotype. The domianant…
A: Parentage of recessive phenotype (white hair) is 98200x100 =49% So, the frequency of recessive…
Q: What is the difference between incomplete dominance and codominance? The dominant allele completely…
A: Incomplete dominance : Condition where both alleles in heterozygous condition MIX to form a 3rd…
Q: In a certain breed of dogs, a gene (L) codes for hair length. The dominant trait is short hair and…
A: In breeds of dog , gene for hair length is represented as L . Here , Short hair is a dominant trait…
Q: In guinea pigs, the allele for short hair (G) is dominant and the allele for long hair (g) is…
A:
Q: Eye color in chimpanzees is coded for by one gene with two alleles, "A" and "a". "A" is dominant and…
A: In chimpanzee , eye colour is determined by gene with two alleles represented as A and a . I ) A is…
Q: The term polymorphism can refer to both genes and traits. Explain what is meant by a polymorphic…
A: Need to explain the meaning of the polymorphic gene and a polymorphic trait. Explain the trait that…
Q: ) Both parents in generation I have orange-brown fur. However in generation II, only one cub has…
A: orange brown fur is coded by dominant allele say the genotype can be CC or Cc. where C is dominant…
Q: In some bizarre-feathered chickens, F is the trait for frizzled feathers while S is the trait for…
A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…
Q: fruit flies, long wings are dominant and vestigial wings are recessive. If a long-winged fruit fly…
A:
Q: t, but the white allele is recessive. If a test-cross is performed and 1000 plants are counted,…
A: In terms of purple peas, the plant is also dominated by white peas (pp genotype). The resulting…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- The shape of a pumpkin is determined by the action of two genes A and B. The recessive forms of these two alleles produces a flattened-shaped fruit, whereas the dominant forms of these two alleles produce the typical pumpkin with ridges. When both alleles are heterozygous a disc-shaped pumpkin is produced. If the genotype of the pumpkin plant is homozygous dominant at one allele and heterozygous at the other, the pumpkin will be ball-shaped. If the pumpkin plant is homozygous recessive at one allele and heterozygous at the other allele it produces an oblong-shaped fruit. Plants with genotypes other than the ones listed in this question do not produce pumpkins. Do the following cross: two pumpkin plants capable of making disc-shaped pumpkins are crossed with each other. Based on this cross, answer the following: (Show your work below.) How many of the progeny will make ball-shaped pumpkins?__________________________________________ How many of the progeny will make disc-shaped…In the fruit fly Drosophila, there is a dominant gen or gray body and its recessive allele for black body. At another gene locus, there is a dominant gene for normal wings and its recessive allele for vestigial wings. A female that is heterozygous at both gene loci was mated with a male that is homozygous for both recessive alleles, and the following results were observed among the offspring: black body and vestigial wings - 370 black body and normal wings - 130 gray body and vestigial wings - 120 gray body and normal wings -380 Knowing this, complete the sentences with the correct terms. 37% Based on the results of this cross, these two gene loci are probably located 25% The percentage of recombinant types observed among the offspring is on the same chromosome The percentage of parental types observed among the offspring is 75CM 75% The distance between these two gene loci is on different chromosomes 25 cM 13% 38%In Drosophila, an allele causing vestigial wings is 12.5 mu awayfrom another allele that causes purple eyes. A third gene that affectsbody color has an allele that causes black body color. Thisthird gene is 18.5 mu away from the vestigial wings allele and 6mu away from the allele causing purple eyes. The alleles causingvestigial wings, purple eyes, and black body are all recessive.The dominant (wild-type) traits are long wings, red eyes, and graybody. A researcher crossed wild-type flies to flies with vestigialwings, purple eyes, and black bodies. All F1 flies were wild type.F1 female flies were then crossed to male flies with vestigial wings,purple eyes, and black bodies. If 1000 offspring were observed,what are the expected numbers of the following types of flies? long wings, red eyes, gray bodylong wings, purple eyes, gray bodylong wings, red eyes, black bodylong wings, purple eyes, black bodyshort wings, red eyes, gray bodyshort wings, purple eyes, gray bodyshort wings, red eyes,…
- In Drosophila, raspberry eyes (ras) is a sex-linked and recessive trait. Polished eyes (pol) is autosomal and recessive. A raspberry, polished male is crossed with a homozygous wild-type female, producing an F1 in which both males and females are phenotypically wild-type. The F1 are inbred to form an F2. At what frequency would you expect to find a phenotypically raspberry polished female in the F2? 1. 1/16 2. 3/16 3. 6/16 4. 9/16 5. neverA pea plant is heterozygous for both pod shape and color. I is the allele for dominant, inflated pod; i is the allele for recessive, constricted pod. G is the allele for dominant, green pod; g is the allele for recessive, yellow color characteristic. Suppose this plant is crossed with a homozygous pea with inflated, green pod, what will be the possible genotype of the offspring? Construct the punnet square, then identify the following: 1. Parents’ genes?2. Parents’ traits?3. Genes (genotype)?4. Shape, color? (phenotype)?5. Genotypic ratio?6. Phenotypic ratio?In aliens, the genes A, B, C, D and E are dominant to their respective alleles a, b, c, d and e: A = one eye a = two eyes B = pointed ears b = round ears C = red skin c = green skin D = two antennae d = three antennae E = square head e = triangular head An alien with genotype AA bb Cc dd Ee marries an alien with genotype Aa Bb Cc Dd Ee. If the genes segregate independently, what is the probability that they will have a child with one eye, pointed ears, red skin, three antennae and a triangular head? A. 9/512 B. 9/128 C. 27/1024 D. 3/64
- Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB giving green phenotype in heterozygotes and yellow and blue in homozygotes. a) A population of butterflies showed 49% yellow, and 51% blue and green. What percentage of the gametes for the next generation would contain the DB allele? b) In another population only 1% of the butterflies are blue, what is the DY allele frequency? c) If the butterflies were subject to predation by birds that could easily detect blue & yellow individuals what effect would you expect this to have on the genotype and allele frequencies over time? Indicate possible percentages.In birds there are two genes that both influence feather phenotype. The first is an autosomal gene for feather shape with two alleles – a dominant allele for curly feathers and a recessive allele for straight feathers. The second is a sex-linked gene for feather colour with two alleles – a dominant allele for grey feathers and a recessive allele for white feathers. A cross between a male with straight, white feathers and a female with curly, grey feathers are expected to produce the following offspring:1 curly grey male : 1 curly white female : 1 straight grey male : 1 straight white female Based on this cross, answer the following questions:i) Please provide appropriate symbols for the two alleles for feather shape. ii) Please provide appropriate symbols for the two alleles for feather colour. iii) What is the probability that a chick born to these parents will have grey feathers? iv) What is the probability of a male chick having grey feathers? v) What is the probability that this…In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings?
- In Drosophila, the allele for long legs (sl*) is wild-type and the allele for short legs (sl) is mutant. The allele for gray body color (b*) is wild-type and the allele for black body color (b') is mutant. The loci for leg length and body color are linked. Flies with sl*sl* b*b* genotypes are mated with flies that have sl s bb genotypes. A testcross was then performed in which the F, offspring with sl*sl b*b genotypes were mated with flies with sl sl. b'b genotypes. The phenotypes of 1000 offspring were recorded. There were 470 flies with long legs and grey body, 30 flies with long legs and black body, 30 flies with short legs and grey body, and 470 flies with short legs and black body. Which of these phenotypes are parental phenotypes? VWhich of these phenotypes are recombinant phenotypes? What is the distance between these two gene loci in centiMorgans (map units)?In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant gene R is present at one locus and at least one dominant gene P is present at a second locus (genotype R_ P_). A rose comb is produced when at least one dominant gene is present at the first locus and two recessive genes are present at the second locus (genotype R_ pp). A pea comb is produced when two recessive genes are present at the first locus and at least one dominant gene is present at the second (genotype rr P_). If two recessive genes are present at the first and the second locus (rr pp), a single comb is produced. Give genotypes for comb shape of the parents in the following cross: Rose crossed with pea produces 20 walnut offspring. O A. Rr pp x Rr Pp B. Rr pp x rr PP C. Rr pp x rr Pp D. RR pp x rr PP O E. RR pp x rr Pp Reset Selection Mark for DouiouuPhenotypically wild-type female Drosophila, whose mothers had spineless bristles (ss) and fathers had ebony bodies (e), produced the following offspring when crossed to homozygous males with ebony bodies and spineless bristles: 43 ebony bodies and spineless bristles 49 wild type 336 ebony bodies, wild type bristles 328 spineless bristles and wild type body color What is the map distance between the ebony body and spineless bristles loci?