Wild type fruit flies have red eyes and normal wings. You crossed a male from a pure-breeding, purple-eyed, broken-winged line of fruit flies to a female from a pure-breeding, red-eyed, normal-winged line of fruit flies. All the F1 progeny were wild type. The reciprocal cross gave the same result. The F1 flies from the first cross were mated to produce an F2 population. If there were 528 flies in the F2 population how many would be purple-eyed and normal winged? 396 264 297 99 352

Q: A wild-type fruit fly (heterozygous for gray body color and wings) mated with a black fruit fly with…

A: Need to find the recombination frequency between the two genes.

Q: BLACK VESTIGIAL DIHYBRID TESTCROSS In the parental generation, you mate a pure-breeding wild-type…

A: If the genes are located on the same chromosome then they are classified as linked genes. In this…

Q: Why is the answer 200? Is there an equation I need to use for this problem?

A: There will be 200 ab gametes among the 1000 offspring in the self-cross of plants with the Ab/aB…

Q: A new species of gerbil is “domesticated” for the pet trade. Wild gerbils have a greyish coat…

A: The genotypes to different phenotypes: Pure breeding black gerbil = BB Pure breeding albino gerbil =…

Q: A cross is made between BbCc and bbcc plants and the offspring occur in the following numbers: 98…

A: When the two genes are linked, they are present on the same chromosome. Because recombination, i.e…

Q: After analyzing data from a three-point cross she has lost her lab manual. The only thing she can…

A: * Given that *Interference is 0.68 * Three double cross over progeny * And distance between genes is…

Q: Two pure-breeding strains of flies are mated, and the F1 are intercrossed.  The first strain has…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Table 1:  F1 ebony flies - 0  F1 non-ebony flies - 560  F1 stubble flies - 560  F1 non-stubble…

A: In genetics, the genes forms the basic inheritance units with its alternative forms called alleles.…

Q: Cross #1: P: Homozygous scarlet-eyed males F₁ Fs Homozygous brown-eyed females X 1072 Wild-type…

A: Answer :- a) Phenotypic ratio of F2 generation is 9 :3: 3: 1, for wild type eye, scarled eye,brown…

Q: "Gametes produced form the F1 generation offspring having genotype a+ b+ / a b = 40 % a+ b+, 40 % a…

A: F1 generation cross between a+b+/a+b+ and ab/ab  Allele ab ab a+b+ a+b+ /ab a+b+ /ab a+b+…

Q: What would be the genotype(s) of F2 offspring that carry recombinant chromosomes? (Note: recombinant…

A:

Q: In a study of several characters, it was found that when di-hybrid crosses were made, several genes…

A: A genetic map is a chromosome map that depicts the relative positions of genes and other significant…

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

A: Test Cross: A test cross is a breeding experiment that is used to determine the genotype of an…

Q: You set up a cross between a male fruit fly with lobe eyes and a true breeding female fruit fly with…

A: Introduction:- A set of an organism's observable qualities or characteristics is known as its…

Q: In wild sunflowers, populations occurs that are either yellow or white. one variety of true breeding…

A: It is given that, in wild sunflowers, populations occur that are either yellow or white. one variety…

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 true-breeding plant expressing a dominant phenotype is crossed with a true-breeding plant…

A: A true-breeding organism is homozygous for the gene under study and carries two copies of the same…

Q: Red foxes are a species that has genetic sex determination similar to humans, where females are XX…

A: Dominant genes has quality  that they doesn't need the presence of a comparable gene in the gene…

Q: Two unlinked genes control flower color in snapdragons. You cross a true-breeding yellow flowered…

A: This is a case of recessive epistasis. The rr genotype for R gene is showing epistasis to the W…

Q: You are attempting to map the chromosome of a silk moth. You know that red eyes and white banded…

A: Linkage is a phenomenon which determines how genes are present in close proximity to the body, but…

Q: Cross #1: P: F1 Fs Homozygous scarlet-eyed males Homozygous brown-eyed females X 1072 Wild-type…

A:

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: recessive phenotype. There were 36 offspring produced. Two of those offspring were crossed with each…

A: To obtain this kind of cross 3 alleles will be taken. Parent 1- TTPPQQ gametes from parent 1- TPQ,…

Q: You are a biologist studying the local butterfly population. You've discovered 4 white (albino)…

A: Complementation Group - A group of mutant genes which do not complement each other equivalent to a…

Q: Vith three COlors: Red, Yellow, and Green. You cross a true-breeding Red line and a true- breeding…

A: The solution of this question can be applied by using basic principles of genetics given by the…

Q: A cross is made between two plants with five independently assorting genes. SHOW YOUR WORK AA Bb Dd…

A: Given- A cross is made between AA Bb Dd Ee hh     X      Aa Bb Dd ee Hh. They are independently…

Q: We have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se.…

A: In a genetic experiment involving true-breeding flies, we have crossed individuals with wild-type…

Q: Two unlinked genes control flower color in snapdragons. You cross a true-breeding yellow flowered…

A: Epistasis is a phenomenon in which one allele hides up the expression of another allele.  Epistasis…

Q: the gene order for three linked genes being studied is A B C. The number of recombinants resulting…

A: Recombination frequency is used to construct genetic linkage maps and it is measure of how close two…

Q: In watermelons, bitter fruit (B) is dominant over sweet fruit (b), andyellow spots (S) are dominant…

A: Genetic cross devised by Mendel helps to understand the manner, in which the genes combine and…

Q: Cross #1: P: F1 Fs Homozygous scarlet-eyed males Homozygous brown-eyed females X 1072 Wild-type…

A: 1. F2 generation phenotypic ratio is the chance of getting scarlet eyes, and  brown eyes is Half…

Q: genes interest with the dominant alleles being T-tall, H=hairy leaves and P=purple flowers. The…

A: In a trihybrid cross three characters are involve. In the above trihybrid cross the three characters…

Q: Vinca (the periwinkle family) have a height determined by polygenes. The shortest Vinca grow to a…

A: The number of progeny in a particular gene interaction are found bybusing formula: 4n Here, n is…

Q: The image shows a pair of homologous chromosomes from a single parent before gamete production. M1…

A: Genetic linkage is a study which shows us the  genes or alleles which are close to each other on a…

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.