The A and B genes are 10 cM apart on a chromosome. If an A B/a b heterozygote is testcrossed to a b/a b, how many of each progeny class would you expect out of 100 total progeny? a. 25 A B, 25 a b, 25 A b, 25 a B b. 10 A B, 10 a b b. 45 A B, 45 a b d. 45 A B, 45 a b, 5 A b, 5 a B
Q: A purebred plant that produces yellow seeds (YY) is crossed with a purebred plant that produces…
A: Alleles are of two types: dominant allele and recessive allele. Dominant allele prevents the…
Q: You calculate an interference value of 0.59. What does this number tell you? a. You will not observe…
A: Answer: (C) you will observe 41% of double crossover.
Q: You now take an F1 female and cross her to a true-breeding black, wingless male. What is his…
A: Given DataB for Brownb for BlackW for normal wingsw for wingless.I am takingB = Ab = a W =Ww =…
Q: after crossing two tall pea plants, a scientist notes that approximately3/4 are tall, while…
A: The genotype is the genetic composition of an organism that governs its phenotype. The height of the…
Q: Calculate the recombination frequency from the following data collected from a breeding experiment…
A: The dihybrid test cross is done in this case. The parent is crossed with homozygous recessive parent…
Q: The pedigree below shows a family of whom several members exhibit a genetic disorder. All the shaded…
A: Pedigree is the diagrammatic representation of family members for a particular trait.
Q: In pigs, the dominant C allele produces a curly tail. c/c homozygotes have straight tails. The…
A: In this question, we are given two genes, C and W which are present on the same chromosome. C gene…
Q: Gene A (alleles A & a) is 26 map units from Gene B (alleles B & b) and, on another chromosome, Gene…
A: Linked genes and recombination A recombination is an event in cell division in which the swapping of…
Q: A gardener finds that some bean plants have pubescent leaves and others have glabrous leaves. a)…
A: Mendel selected pea plants to investigate genetics because they had clearly recognizable…
Q: The recombinant frequency of two genes, A and B, located on the same chromosome is 38%. Parents…
A: It’s not at all like the customary punett square where in the event that you consolidate two…
Q: A tall pea plant with purple flowers (both determined by dominant alleles) is crossed with a short…
A: A dihybrid cross-refers to the Mendelian cross which is performed when two traits are studied…
Q: The genes A B C occur in that order in fruit flies. A is 10 map units from B, and B is 20 map units…
A: There are 3 genes. These are A, B and C. The genetic distance between A and B is 10 map units. The…
Q: In corn, the genes for tassel length (alleles T and t) andrust resistance (alleles R and r) are…
A: a. What key features of the data are different from the expected results? Data infer close linkage…
Q: A long-haired cat is crossed to a short-haired cat, both from purebreeding lines. All of the…
A: Given information: A long-haired cat is crossed to a short-haired cat, both from purebreeding lines.…
Q: As a biologist, you complete a test cross between fly offspring to gain information about how two…
A: Looking at the data given majority are recombinant types. Recombination of genes occurs because of…
Q: In corn, a colored aleurone is due to the presence of an R allele; r/r is colorless. Another gene…
A: Test cross is the cross between a parent with the homozygous recessive parent. This is generally…
Q: A) Two linked genes, (A) and (B), are separated by 18 cM. A XY individual with genotype Aa Bb…
A: If the genes are located on the same chromosome then they are classified as linked genes. In this…
Q: A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of…
A: Gene mapping was discovered by Alfred H. Sturtevant. He discovered this in order to identify the…
Q: you do a di-hybrid cross and end up with 160 plants, how many would you expect to have both dominant…
A: Dihybrid cross is usually a cross between two individuals which differ in two traits which are…
Q: The second-generation offspring of a cross between individuals who are homozygous for different…
A: A cross that involves the study of the inheritance of only one trait is known as a monohybrid cross.…
Q: Two genes called TE and X1 were studied in a lab. 45 out of 500 offspring from crosses involving…
A: A gene is a unit of hereditary present in thousands of numbers on the helical strands of…
Q: A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is…
A: Alleles can be described as the different forms associated with particular gene. The formation of…
Q: |-1 I-11 II II-1 II-2 II-3 II-4 II III-1 III-2 III-3 a) In humans, brown eyes are dominant and blue…
A: The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is…
Q: Mendelian Genetics Fill in the Punnett squares for each cross given to determine the genotypic…
A: INTRODUCTION Answer of question 1&2 is given below.
Q: In a parental cross of a ADHL disease trait, where the father is affected and the mother is…
A: Attention deficit hyperactivity disorder (ADHL) is an autosomal dominant neurodevelopmental…
Q: A researcher crosses mice with brown eyes and short tails, and the F1 progeny were recovered in the…
A: Introduction The Term "phenotype" Refers To An Organism's Observable Physical Properties, Such As…
Q: You have isolated a true-breeding fish strain that has blue scales. Then you isolate another true-…
A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction:…
Q: A, B, and C genes are linked with B in the middle. AB are 8 cM and BC are 14 cM apart. If ABc/abC is…
A: If the genes are located on the same chromosome then they are considered as linked genes. In this…
Q: Continuing his experiments, in Miles Morales' genome, the Goblin found similar genes, including one…
A: In the given case, let the allele associated with invisibility be “I” and allele associated with…
Q: 1 2 Y 亚 Marker 1 Marker 2 Marker 3 1 Marker 4 1 K® KB 1 2 3 Marker 1 Marker 2 Marker 3 Marker 4 2 3…
A: 1. Determine if the trait of interest is dominant or recessive. 2. If the trait of interest is…
Q: In Figure 4-8, some meiotic products are labeledparental. Which parent is being referred to in…
A: The final product of meiosis comes when there is splitting in the cytokinesis. The products that are…
Q: . A geneticist mapping the genes A, B, C, D, and E makestwo 3-point testcrosses. The first cross of…
A: The trihybrid cross is another name for the three-point testcross. Three traits are crossed together…
Q: You are working with a new species of spider in the lab. Wild type spiders have black legs and long…
A: DNA is one of the genetic material. The genes are present on DNA for regulating activities of cells.…
Q: In humans, there are three alleles for blood type: A, B, and O. A and B are codominant over O. A…
A: Blood group inheritance is multiple allelic in nature. Type A blood group can have IA IA/ IA i…
Q: 1. Three genes (P, S & T) are arranged on a chromosome with distances as shown in the figure P 8.0 S…
A: Double crossovers are rare events that happen relatively rarer than single crossover as it requires…
Q: B. B BB Bb b Bb bb Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. If…
A: Genotype refers to an individual's collection of genes where it can be a single gene or set of genes…
Q: Given that the recombination frequency between the Q and R loci above is 32%, how many progeny with…
A: ANSWER;- 16
Q: You cross individuals with genotypes AABb and AaBb. What is the probability of producing an…
A: Answer. Phenotype: Phenotype is the external characteristics or appearance of a character. Genotype:…
Q: In a species of the cat family, eye color can be gray, blue, green, or brown, and each trait is true…
A: A monohybrid cross includes the inheritance of a single gene and gives 3:1 ratio in the F2…
Q: Using a Punnett Square predict what the Genotypes are for the persons II-3 & II-4.(* C/C or C/A mean…
A: Observing the pedigree chart, the inheritance of the trait is observed as Autosomal recessive…
Q: If two offspring result from the cross between a heterozygous hen and a heterozygous rooster, what…
A: Genetics is a branch of biology that is concerned with the study of Nucleic acids ( Ribonucleic…
Q: A trihybrid cross is made between two plants with genotypes A/a B/b C/c how many offsprings of such…
A: Trihybrid cross is a cross in which three pairs of contrasting alleles are taken into consideration…
Q: You do a testcross to map three genes, Ph, T, and Qc. In the table below, you will find the number…
A: Chromosomal maps / genetic maps are the map which determines the distance between the two genes .…
Q: In mice, black fur (B) is dominant over brown fur (b). Two black mice had only black offspring.…
A: Given , Black fur mice - Dominant (B) Brown fur mice - Recessive (b) Two black mice had only black…
Q: A purebreeding horse with a long tail and a black mane is mated to a purebreeding horse with a short…
A: The correct answer to this question is Option A. 1/16
Q: You have a pure breeding line of tall corn and a purebreeding line of short corn. When you cross…
A: Mandellion genetics state that each trait is controlled by at least two alleles of a single gene…
Q: In humans, the allele for colorblindness is found on the X chromosome and is recessive. If a woman…
A: Colorblindness is decreased ability to differentiate or identify colors. As stated, the allele for…
Q: Red-green color blindness is controlled by a recessive allele on the X chromosome. A colorblind…
A: Let the X- chromosome having color blindness gene be X c/b Father's Genotype Determination The…
| The A and B genes are 10 cM apart on a chromosome. If an A B/a b heterozygote is testcrossed to a b/a b, how many of each progeny class would you expect out of 100 total progeny? |
| a. 25 A B, 25 a b, 25 A b, 25 a B |
| b. 10 A B, 10 a b |
| b. 45 A B, 45 a b |
| d. 45 A B, 45 a b, 5 A b, 5 a B |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of the progeny gave the following results: + + + 450 + + C 10 a + c 70 + b c 210 + b + 65 a + + 200 a bc 460 ab + 15 What is the map distance between the a and c genes? O 25.12 map units O 27.71 map units O 29.39 map units O 32.53 map units O None of the above Next» • Previous PgUp End F10 PrtScn Home 23 F2 DII F3 F4 F5 FB F9 F1 @ %23 %24 1. 3. 4. 8. To W R. Y U S D G H. C M Bpage Two genes are 70 MU apart. How often would you expect to see recombinant progeny? Select one: O a. 50% O b. 30% O c. 25% O d. 70% O e. 100% Search or type URLA cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of the progeny gave the following results: 450 10 a + c 70 + b c 210 + b + 65 a + + 200 abc 460 ab+ 15 What is the map distance between the b and c genes? O9.12 map units O 10.81 map units O 12.14 map units O 13.95 map units ONone of the above PrtScn Home End %23 %24 & 7. 3. 4. 7 W R Y H. K C V この #:
- In a study of several characters, it was found that when di-hybrid crosses were made, several genes did not show independent behavior, so it was decided to develop the chromosomal map of five genes, and to know their position within the chromosome. According to the test crosses, the following results were obtained. a*b*d* 1250 b*d* e* 980 d* e* f* 835 ab d 1235 bd e 985 def 840 a*b d 645 b*d e 4 d'e f 195 a b* d* 640 b d* e* 2 d e*f* 200 a* b* d 320 b*d*e 320 d* e* f 3 a b d* 330 bd e* 325 de f* 1 a*b d* b* de* 250 d* e f* 410 a b+ d b d*e 255 d e* f 405 Mapping by determining the position and distance of genes within the chromosome 2.A tall pea plant with purple flowers (both determined by dominant alleles) is crossed with a short plant with white flowers. there is no linkage of genes. if the tall, purple-flowered plant is heterozygous for both traits, the offspring will be: A 1 purple tall:1 white short B 3 purple tall:1 white short C 9 purple tall:3 purple short:3 white tall:1 white short D 1 purple tall:1 purple short:1 white tall:1 white shortIf these two individuals with the following characteristics are crossed Parent 1: blood type AB; heterozygous for H gene Parent 2: heterozygous B blood type; hh genotype What is the phenotypic ratio (blood type) of the F, generation? A. 4 AB: 1 A: 1 B: 2 0 B. 2 AB: 2 A: 4 B: no O C. 1 AB: 1 A: 2 B: 4 0 D. 1 AB: 1 A: 1 B: 10
- A P cross of AAbb x aaBB is performed. An F1 offspring is crossed with an individual that is aabb. Determine which two of the following are the recombinant phenotypes. 1. Recessive a, recessive b 2. Dominant A, recessive b 3. Recessive a, dominant B 4. Dominant A, dominant BIn corn, a colored aleurone is due to the presence of an R allele; r/r is colorless. Another gene controls the color of the plant, with g/g being yellow and G_being green. These genes have a rate of recombination of 12%. What is the predicted frequency of colorless and yellow offspring when a Rg/rG is test-crossed? A. 0.88 B. 0.44 C. 0.04 D. 0.12 E. 0.06The following recombination frequencies are calculated for four linked genes in the image attached: What is the frequency of crossing-over between A and D? a. 8% b. 6% c. 15% d. 11%
- Red-flowering snapdragons are homozygous for allele R1. White-flowering snapdragons are homozygous for a different allele (R2). Heterozygous plants (R1R2) bear pink flowers. What phenotypes should appear among first-generation offspring of the crosses listed? What are the expected proportions for each phenotype? a. R1R1 × R1R2 c. R1R2 × R1R2 b. R1R1 × R2R2 d. R1R2 × R2RAn F1 of the parents AABBCC x aabbcc was testcrossed to a triply recessive organism (aabbcc). AaBb C 32 C 0 aabbC 42 AabbC 11 C 4 C aaBbc 12 AaBbc C aabbc C Aabbc C aaBbC C 36 340 14 122 100 Total 0 1. If these three genes were assorting independently, how many genotypic classes would result in the offspring? 2. If these three genes are so tightly linked that no crossovers were recovered, what proportion of each genotypic class would be observed in the offspring? 3. The genotypes of the progeny are in the following table. What can you conclude from the actual data about the location of the three genes in relation to one another (give the gene order and distances)?In letter B: If the map distance equals the number of recombinant/total of offspring, wouldn't it be 24/806 x 100? Wouldn't we add both recombinants? Can you explain letter C? I don't grasp that concept well. And since I'm using my question already, would you be able to answer D. Thank you!