A cross was made between two strains of plants that are agriculturallyimportant. One strain was disease-resistant but herbicide-sensitive;the other strain was disease-sensitive but herbicide-resistant. Aplant breeder crossed the two plants and then allowed the F1 generation to self-fertilize. The following data were obtained:F1 generation: All offspring are disease-sensitive andherbicide-resistantF2 generation: 157 disease-sensitive, herbicide-resistant57 disease-sensitive, herbicide-sensitive54 disease-resistant, herbicide-resistant20 disease-resistant, herbicide-sensitiveTotal: 288Formulate a hypothesis that you think is consistent with the observeddata. Test the goodness of fit between the data and your hypothesisusing a chi square test. Explain what the chi square results mean

Q: A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a…

A: The objective of the question is to understand the genetic inheritance pattern of plant height in…

Q: The table below shows the progeny of a test cross of a heterozygote (HhFfGg). Each row shows the…

A: Alleles Type Count H G F Parental 124 h g f Parental 119 H g F Double cross over 15 h G f…

Q: If an incompletely dominant red-flowered plant is crossed with an incompletely dominant…

A: Incomplete DominanceIn snapdragons, red flower color (R) is incompletely dominant over white flower…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: The character shown in an individual organism depends on the genetic makeup of parents. The…

Q: You make a test cross between an F1 plant that is heterozygous for two dominant resistance genes (R1…

A: Linkage is the relation between the two genes on the same chromosome. Their relationship with each…

Q: Two corn plants are studied. One is resistant (R) and the other is susceptible (S) to a certain…

A: Maize, often known as corn in North American and Australian English, is a cereal grain that was…

Q: Stem length in plants is controlled by two CODOMINANT alleles of one autosomal - one allele, B, adds…

A: 1-If the breeder starts crossing with two heterozygotes (Bb), then their initial lenghts would be…

Q: The fungus Melampsora lini causes a disease known as flax rust.Different strains of M. lini cause…

A: The inheritance pattern is a manner in which a gene is inherited by an offspring from its parents.…

Q: A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a…

A: The above problem mentions one plant of twelve cm and another plant of thirty-six cm. Therefore an…

Q: . A doubly-homozygous red-flowered plant is crossed with a doubly-homozygous white-flowered plant.…

A: Phenotype refers to the traits that can be observed physically such as height or color. So…

Q: In the garden pea, orange pods (o) are recessive to green pods (+), and sensitivity to pea mosaic…

A: To determine the gamete frequencies of the recombinants and non-recombinants, we need to first…

Q: F1 Phenotype of the Testcross phenotypic Phenotypic ratio in the F2 phenotype tester ratio 12/16…

A: Test cross is a test to find out the the genotype of a dominant phenotype. So it is the cross…

Q: n a fox ranch in Scandinavia, a mutation arose that yielded a “platinum” coat color. The platinum…

A: A breeders are not able to produce a pure- breeding platinum foxes even when they tried to cross two…

Q: A research team genotyped hundreds of families affected by haemophilia. Among those families, they…

A: RFLP is found on X chromosome and it is a sex-linked recessive disorder. The daughter who inherited…

Q: A variety of pea plant known as Blue Pamlico produces a tall plant with blue seeds. A second variety…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: True breed plants are defined as having identical alleles, which constitute their genotype and give…

Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

Q: A cross in plants is done between the parents CCDD and ccdd to create a dihybrid F1 plant. This F1…

A: Introduction: Genetic variation refers to the differences in genetic material that exist among…

Q: A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a…

A: The objective of the question is to determine the number of gene pairs involved in the height…

Q: Two linked loci have a recombination frequency of 5%. A series of crosses is performed. The P…

A: Given information The recombination frequency is 5%. The P generation involves an individual that…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: Genes are the units of heredity that carry coded genetic information in the form of nucleotide…

Q: A plant geneticist is examining the mode of inheritance of flower color in two closely related…

A: The objective of the question is to determine the mode of inheritance of flower color in two species…

Q: You have already localized the genes to the same chromosome by deletion mapping, and now decide that…

A: A test cross is one that involves cross between an individual (with unknown genotype) with a…

Q: In corn, the cross WW ee FF × ww EE ff is made. The three loci are linked as follows:Assume no…

A: The field of science associated with the study of genetic material or hereditary material of a…

Q: You successfully isolate an hsf2/hsf2; hsf3/hsf3 double mutant stock. You cross this plant to an…

A: 40 plants

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: one of the first flowers seen in the spring in some regions of the United States. The flower is…

A: Epistasis is a mechanism where an effect of a gene mutation is dependent on the presence or absence…

Q: An otto hemp variety with the genotype RRbb is crossed with a Kush hemp  variety rrBb (Given that RR…

A: When two hemp varieties with specific genetic traits are crossed, the resulting offspring inherit a…

Q: When allowed to self-fertilize, a corn plant od DdRr genotype produces 850 offspring that exhibit…

A: To conduct a chi-square test for independent assortment, you need to compare the observed phenotypic…

Q: In tomatoes, spherical fruit shape is dominant to oblate, and tall is dominant to dwarf. o = oblate,…

A: In tomatoes, spherical fruit shape(O) is dominant to oblate(o), and tall(D) is dominant to dwarf(d).…

Q: The fly with vestigial wings is crossed with the fly with normal wings shown in the upper-right…

A: The length of wings in Drosophila is determined by the wing length gene. There are two distinct…

Q: A cross was made between a Red and Long flowered (RRLL) plant and a blue and dwarf flowered (rrll)…

A: Answer: The cross between RRLL (red and long flower) plant and rrll (blue and dwarf plant) could…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: In a true-breeding variety of maize, 11cm height represent the dominant character having genotype,…

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: True breeding species are those who can pass to all their offspring specific characteristics. True…

Q: You have two true-breeding strains of coneflower. One strain has purple flowers and purple stems.…

A: Genetics helps us understand how traits are inherited. Genetics can help us understand how traits,…

Q: Using the Chi Square formula and table, determine if your results support the hypothesis of…

A: The hypothesis of independent assortment refers to the law of independent assortment that is one…

Q: A horticulturist runs a test cross with an offspring (F1 generation) purple plant from Question 8.…

A: Note: We don't know what the question 8 is. I am answering the question in assumption that the…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.