You are following segregation of four genes in a cross – A, B, C, and D Dominant alleles are capital letters and recessive alleles are small case. You take the cross - aa Bb cc Dd x Aa Bb CC Dd. What is the frequency expected among the progeny for the heterozygous genotype: Aa Bb Cc Dd? Group of answer choices a. 1/4 b. 1/32 c. 0 d. 1/16 e. 1/8
Q: Which of the following statements is false?a. Mendelian inheritance patterns obey the law of…
A: The Mendelian inheritance pattern is the pioneer and the earliest genetic information that explained…
Q: What type of trait is displayed in the pedigree above? Use the methodology discussed in the lecture…
A: It is a autosomal recessive disorder because first of all the generations are skipped so, it is…
Q: If an organism has two different alleles (call the alleles a andb) of a gene,a. its phenotype will…
A: Gene is the key to heredity that is transported from a parent to their offspring and is held to…
Q: A couple both with blue eyes have a kid with brown eyes. In this case, the eye color is determined…
A:
Q: A cross is carried out between genotypes AaBBCcddEe and AaBbccDdEE. How many phenotypes are possible…
A: Phenotype is the external appearance of an organism.
Q: a. Given the result of a crosses below: Tall plant and short plant and Tall plant and Purple flower…
A: A dihybrid cross is a cross in which two traits are involved. As per the data , two traits are :-…
Q: most people with the dominant mutant polydactyly allele have extra digits, but at least 25% have the…
A: Polydactyly in humans is an example of penetrance in which the dominant allele does not always…
Q: The fur colour of Labrador dogs is determined by three alleles: black (FB), chocolate (F), and…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
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: Genes that are located close together on the same chromosomes violate A. Mendel's lab of segregation…
A: A gene is a basic unit of heredity in biology, consisting of a sequence of nucleotides in DNA that…
Q: Suppose we have a true breeding parental cross for a disease with an autosomal dominant mode of…
A: Given information The cross is a true-breeding parental cross. The cross is between the parent…
Q: In an organism of genotype Aa, half the the gametes carry the A allele and half the a allele. this…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: chondroplasia is a form of dwarfism caused by a mutation in a single gene. Two individuals with…
A: Ans- d. achondroplasia is produced by a dominant allele
Q: A scientist takes a frog with green skin and mates it to a frog with brown skin. All the frogs in…
A: F1 generation - It is the first generation produced on crossing the parental type. It is called…
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: If a Mendel's dihybrid cross between two double heterogotes (AaBb x AaBb), assuming that the…
A: Dihybrid cross portrays a mating test between two life forms that are identically hybrid breed for…
Q: A person is heterozygous for the Freckles phenotype (Ff) and also heterozygous for the PTC-tasting…
A:
Q: While working in his garden at the abbey where he lived, Mendel used pea plants to demonstrate how…
A: Mendel performed hybridization experiments on the garden pea.
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: In mating between two individuals that are heterozygous for a recessive allele, what genotypic ratio…
A: When the alleles are expressed by suppressing or masking the effects of the another alleles, then…
Q: Individuals of genotype AaBb were crossed with aabb individuals. Approximately equal numbers of the…
A: Mendel's theory of segregation states that when haploid gametes are formed each contains only one…
Q: A. What is the genotype of the F1 offspring? . B. If this trait exhibits simple (Mendelian)…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: In fruit flies, yellow body is a sex linked recessive allele. The dominant allele is dark bodied. If…
A: This is the chart showing genotype as well as phenotype of the parent fruit flies. Q1. Now with…
Q: A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in…
A: Mendel observed that hybridising true breeding (P generation) plants brought about a F1 age that…
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: A. For the pedigrees below: a. give the probable mode of inheritance b. justify your answer c.…
A: Pedigree is a representation in the form of a diagram or family tree of inheritance of genetic…
Q: Match column A to Column B 1. Gene 2. Allele 3. Character 4. Dominant Allele 5. Trait 6. Recessive…
A: 5.Trait- b. A variant for a character 6.Recessive allele- a. Has no effect on Phenotype in a…
Q: One of the autosomal loci controlling eye color in fruit flies has two alleles: one for brown eyes…
A: The fruit fly's color of the eye is further controlled by the autosomal locus. The given fly…
Q: Read the following statements (A-D) : (A) Autosomal recessive trait can't be transmitted from normal…
A: Dominant traits are the traits which are expressed fully while stop up or repress the expression of…
Q: Which of the following is false? a. the pollen grain shape was studied by Mendel. b. Mendel…
A: Gregor Mendel is known as the Father of Genetics. He conducted experiments on the garden pea plants.…
Q: The following question refers to the pedigree chart in the figure for a family, some of whose…
A: It's given that the trait W is dominant which means this trait can express in homozygous condition…
Q: An organism of the genotype JJKKLI was testerossed to an organism of genotype jkkll. The genotypes…
A: Independent assortment is the process in which alleles of different genes segregate independently of…
Q: Two Mendelian traits in pea plants that are controlled by single genes are the color of the pods and…
A: Given: Green pod - Dominant - G Yellow pod - recessive - g Inflated pods - Dominant - I Constricted…
Q: а. a chart that shows the combinations (results) for a cross b. a picture (diagram) that shows…
A: Answer: GENETICS is the study of genes , hereditary and variations from generation to generation.
Q: In dihybrid crosses of heterozygous parents, the ratio 9:3:3:1 indicates ___. a. codominance…
A: Punnet squares are used to predict the frequency of the genotype of the individuals being born to…
Q: In some chickens, the gene for feather color is controlled by codiminance. The allele for black i B…
A: The chicken is a subspecies of the red jungle fowl. It is a type of domesticated fowl. Rooster or…
Q: The fur color gene in rabbits has a dominant allele B with a black phenotype and a recessive allele…
A: According to the mendelian inheritance the genes (that are not linked) shows independent assortment…
Q: The picture shown here is pedigree chart for a family, some of whose members exhibit the dominant…
A: Widow’s peak is a term given to the type of hairline that contains a V-shape point in the middle of…
Q: A 1:2:1 genotype ratio underlies the 3:1 phenotype ratio in the F2. The purple allele is designated…
A: Inheritance is a phenomenon which determines how the characters are transferred from one generation…
Q: Wheat kernel color is an additive trait controlled by two genes, gene A and gene B. The A1 and B1…
A: The cross between two individuals when performed by making 2 pair of character (alleles) is known as…
Q: Which of the following statements correctly describes the Law of Independent Assortment? a. A…
A:
Q: Albinism is homozygous recessive (aa). A sister with normal coloration has a sister that has…
A: Albinism is a disorder of autosomal recessive inheritance. Albinism inhibits melanin production,…
Q: In African clawed toads, albino skin (a) is recessive to green skin (A). Two toads are mated. One of…
A: The resulted ratio of offsprings from the cross, which includes albinos and greens is given 20:18,…
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: In fruit flies, yellow body is a sex linked recessive allele. The dominant allele is dark bodied. If…
A: A bleeding ailment called haemophilia causes blood to not clot normally. Blood contains a variety of…
Q: In a cross of AABbccddEe x AaBbCcDdee, what proportion of the offspring will show dominant…
A: I gave you the answers in steps 2. Thank you.
Q: The American Curl is a breed of cat that has curly ears. The allele for the curly ears is dominant…
A: Sir Gregor Johann Mendel performed his famous experiments on pea plants and laid the foundation of…
Q: A researcher crosses mice with brown eyes and long tails, and the F1 progeny were recovered in the…
A: Null hypothesis - The two traits given follow Mendelian pattern of inheritance.
Q: This problem will explore a concept called epistasis. Epistasis occurs when one set of alleles can…
A: The alleles for the traits are: Normal pigmentation- A albino - aa Black hair - B blonde hair - b…
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…
You are following segregation of four genes in a cross – A, B, C, and D Dominant alleles are capital letters and recessive alleles are small case.
You take the cross - aa Bb cc Dd x Aa Bb CC Dd. What is the frequency expected among the progeny for the heterozygous genotype: Aa Bb Cc Dd?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- You decide to breed a pair of guinea pigs, one black and one white. In guinea pigs, black fur is caused by a dominant allele (B) and white is due to homozygosity for a recessive allele (b) at the same locus. Your guinea pigs have seven offspring, four black and three white. What are the genotypes of the parents? Why is there a 1:1 ratio in this cross?You are following segregation of four genes in a cross – A, B, C, and D Dominant alleles are capital letters and recessive alleles are small case. You take the cross - aa Bb cc Dd x Aa Bb CC Dd. What is the frequency expected among the progeny for the heterozygous genotype: aa bb Cc Dd? a.1/16 b.0 c.1/4 d.1/8 e.1/32Cystic fibrosis is a genetic disease caused by a recessive allele. Two parents without the disease have a child with the disease, indicating they are both heterozygotes. Assuming that the child did not have a mutation giving it the disease, what is the probability that a second child of the same parents would have the disease? Group of answer choices a. 1 b. 0.25 c. 0 d. 0.5
- Dimples (D) are a dominant trait genetic trait. Complete a Punnett Square to determine the possible phenotypes and genotypes of a cross between a man who is homozygous dominant and a heterozygous woman. Choose the percentages correctly below. Dimples: 0% 25% 50% 75% 100% No dimples: 0% 25% 50% 75% 100% DD: 0% 25% 50% 75% 100% Dd: 0% 25% 50% 75% 100% dd: 0% 25% 50% 75% 100%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 shortRed color (R) allele is dominant over blue color (r) for carnations (a type of flower). You will cross a heterozygous red carnation with a blue carnation. Show all your work filling out the required parts of the diagram. Then, select the correct statement below. (Please complete the Punnett Square correctly.)& (Picture below) 1. 75% red - 25% blue 75% heterozygous - 25% homozygous 2. 75% red - 25% blue 75% heterozygous - 25% homozygous 3. 50% red - 50% blue 50% heterozygous - 50% homozygous 4. 25% red - 75% blue 25% heterozygous - 75% homozygous Thank you!
- Sickle cell anemia is a recessive trait in humans. In a cross between a father who has sickle cell anemia and a mother who is heterozygous for the sickle cell allele, what is the probability that both of their first two children will be affected? A) none B) 1/16 C) 1/8 D) ¼ E) ½Sickle-cell disease is a recessive trait in humans. In a cross between a father who has sickle-cell disease and a mother who is heterozygous for the sickle-cell allele, what is the probability that all of their first three children will be unaffected? A) 1/4B) 1/2C) noneD) 1/8E) 1/16In man, there is gradation in eye color and resulting to 9 phenotypes. These are (in order of the number of additive alleles): light blue, medium blue, dark blue, gray, green, hazel, light brown, medium brown, dark brown. Mr. A (dark brown eyes) and Mrs. A’s (light blue eyes) daughter, marries a man whose genotype is the same as herself. What is the probability that they could have: Dark brown eyed child? Hazel-eyed? What eye color is most likely to occur and what is its probability?
- The table below shows the progeny of a test cross of a heterozygote (JjBbRr). Each row shows the number of progeny that inherited each combination of alleles from the heterozygous parent. You've already determined the gene order (B is in the middle) and labeled each type of progeny. Using this information, what is the recombination frequency between J and B? Alleles: Type: Count: J B R Parental 132 j b r Parental 135 J b R DCO 15 j B r DCO 11 J b r SCO (J-B) 59 j B R SCO (J-B) 55 J B r SCO (B-R) 38 j b R SCO (B-R) 40 Group of answer choices 0.214 0.235 0.289 the correct answer is not available. 0.503 0.14The American Curl is a breed of cat that has curly ears. The allele for the curly ears is dominant (E). Suppose a cat with the heterozygous genotype is bred to a female cat with the homozygous recessive genotype. Fill out a Punnett Square and answer the following questions. What is the phenotypic ratio of this punnett square? If this cross produces six kittens, how many of them will have curly ears? ________If a Mendel's dihybrid cross between two double heterogotes (AaBb x AaBb), assuming that the dominant allele is completely dominant over the recessive allele, what should be the phenotypic ratio of the progeny? A. 3:1 B. 9:3:3:1 C. 4:4:4:4 D. 9:3:4