In silkmoths (Bombyx mori), red eyes (re) and white-banded wings (wb) are encoded by two mutant alleles that are recessive to those that produce wild-type traits (re* and wb*); these two genes are on the same chromosome. A moth homozygous for red eyes and white-banded wings is crossed with a moth homozygous for the wild-type traits. The F, have wild-type eyes and wild-type wings. The F, are crossed with moths that have red eyes and white-banded wings in a testcross. The progeny of this testcross are wild-type eyes, wild-type wings red eyes, wild-type wings wild-type eyes, white-banded wings red eyes, white-banded wings

Q: In the fruit fly, vestigial wings and hairy body are produced by two recessive genes located on…

A: note: since you have posted multiple questions we have answered the first questions for you. if you…

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: In drosophila , There are three genes :- Black body b , waxy wings wx and cinnabar eyes cn .While ,…

Q: There are some members of the genus Datura that are trisomic for the chromosome set, which carries…

A: The cross between P+P+P X P+P is done in step 2

Q: n Drosophila, vermilion eye color is due to a recessive allele (v) located on the X chromosome.…

A: assuming that  : The wild type = allele+ / allele+ Heterozygote = allele+ / allele Mutants = allele…

Q: A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow…

A: In Drosophila melanogaster , there as three types of genes :  A ) White eye ( w )  B ) Yellow body (…

Q: In Drosophila, the genes A, B, and C are linked and in the order given. The distances are A-B = 5…

A: Linked genes are genes that are located on the same chromosome. Unless they are separated by…

Q: a Punnett square for a cross between a homozygous red-eyed female (XR XR ) and a white-eyed male (Xr…

A: In Drosophila, white eye colour is recessive X-linked trait while red eye colour is dominant.…

Q: In a species of bird, feather colour is determined by a single, non-autosomal gene that shows…

A: Given  Feather colour is non autosomal means it is sex based charecter. Parent phenotype  Female -…

Q: In a species of bird, feather colour is determined by a single, non-autosomal gene that shows…

A: Introduction Gregor Mendel focused on patterns of inheritance and the genetic basis for variation.…

Q: Bar (B) is a dominant sex-linked mutant of D. melanogaster. Held-out wings and ebony body are…

A: Bar eye character (B) is a sex dominant character.

Q: In Drosophila melanogaster, forked bristles are caused by an allele (Xf) that is X linked and…

A: The forked bristles in Drosophila menalogaster is due to the presence of Xf alleles in homozygous…

Q: You have been given a virgin Drosophila female. You notice that the bristles on her thorax are much…

A:

Q: In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is…

A: Genetic inheritance is the process in which the characters are transferred from parent to offspring.…

Q: autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Hi! Since you posted many questions, we will be answering the first for you. Please post the other…

Q: Thorn apples produce either purple (P) or white (p) flowers, and their fruits are either spiny (S)…

A: Purple (P) flowers = dominant White (p) flowers= recessive Spiny (S) = dominant Smooth (s)=…

Q: In Drosophila fruit flies, the genes for warped wings (dwp), rumpled bristles (rmp), and pallid…

A: Three point test cross data is given in the question. The three genes are involved in this cross.

Q: dominance effect of alleles at the R locus. a) How many different gametes are possible in the…

A: Trihybrid cross  The cross involve 3 pairs of contrasting traits of three characters is called…

Q: In mice, albinism (g) is recessive to grey coat colour (G). A grey mouse mated with an albino mouse.…

A: Answer:- Dihybrid cross:-   G (Grey coat color) g (albino coat color) G (Grey coat color) GG…

Q: The mutant genes for vestigial wings and singed bristles are approximately 30 map units apart on…

A: Each gene has two alleles, one is a dominant allele and another is a recessive allele. If the mutant…

Q: Two recessive traits in mice—droopy ears and flaky tail—arecaused by genes that are located 6 mu…

A: According to the question, recessive traits in the mice are - Droopy ears (de) and Flaky tail (ft).…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Autotetraploids are organisms that carry four copies of the same genome for example a homozygous…

Q: phenotypic ratio

A: The linkage of genes in a chromosomes is represented in the form of genetic map or linkage map."…

Q: In an insect species, the genes for white eyes (w) and smooth legs (s) are linked and are located 16…

A: In genetics, genes forms the hereditary units of life. The genes contains two alternative forms…

Q: A) Calculate the map distance separating the three genes B) Which gene is in the middle?

A: Symbol  white eyes = r short wings = l  ebony bodies = g    red eyes = R long wings = L  Gray bodies…

Q: homozygous green autotetraploid strain is crossed with a homozygous red autotetraploid strain. a.…

A: Autotetraploid is a genetic condition that is characterized by the presence of four times the…

Q: In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is…

A: Hi, Thanks For Your Question.  Answer : The Complex Chromosome Formed By Four Copies Of A Single…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Autotetraploid: It consists of four copies of an individual genome. It consists of the doubling of…

Q: You have a Drosophila line that is homozygous for autosomal recessive alleles a, b, and c, linked in…

A: Recombination frequency measures the genetic linkage between a set of alleles/genes and is used to…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Distance between the two genes indicates the genetic linkage between the two genes. Distance between…

Q: In Drosophila melanogaster, cinnabar eye (cn) and vestigial wing (vg) are simple recessive traits. A…

A: Cinnabar eyes = cncnv+v+ Vestigial wings = cn+cn+vv Test cross parent = cncnvv (cinnabar and…

Q: In fruit flies, L = long wings and l = short wings. When a long-winged fly is crossed with a…

A: A Punnett square is defined as a graphical representation of all the possible offspring genotypes…

Q: The following is a linkage map of chromosome 5 for three genes in tomato: Lf (normal) vs. lf (leafy)…

A:

Q: Theoretically, what is the expected result from the parental cross of a grey mouse and an albino…

A: Dominant trait is grey coat( G) Recessive trait is albinism (g) The cross is between grey mouse and…

Q: In the fruit fly, dumpy wings (d) and purple eyes (p) are encoded by mutant alleles that are…

A: The two genes are involved in this case. The wings and eye encoding genes are involved here. The…

Q: In the fruit fly Drosophila, a rudimentary wing called vestigial and the dark body color called…

A: This species is used because of its small size,short generation time and ability of females to lay a…

Q: In onions, presence of gene C causes production of an enzyme which catalyzes the production of…

A: "Inheritance" is the process through which a child gets genetic information from his or her parents.…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Since you have asked multiple questions, as per our policy, we can only answer one question at a…

Q: In humans, the genes for coloblindedness and hemophilia re both located on the X chromosome with no…

A: Color blindness can be defined as the type of genetic disorder in which an individual cannot…

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: Genes are the hereditary units of life. The genes can be linked or may not be linked.  When two…

Q: Imagine you are performing a cross involving seed shape in garden pea plants. What F1 offsprings…

A:

Q: In Drosophila, a cross was made between females expressing thethree X-linked recessive traits, scute…

A: The genes that are in close proximity will have a very low chance of the occurrence of recombination…

Q: What are the F1 phenotypes expected from a cross between a heterozygous red-eyed female fruit fly…

A: The genotype of female parent fruit fly is given XWXw   The genotype of male parent fruit fly is…

Q: The genes for mahogany eyes and ebony body are approximately 18 map units apart on chromosome III in…

A: In Drosophila + indicates wild-type allele for any gene, m = mahogany  e = ebony.Female parents are…

Q: Suppose that unicorns have one gene that codes for color, where S is silver and s is white. The…

A: When two genes are involved, the cross between them is termed as a dihybrid cross. The genes can be…

Q: A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow…

A: The largest number are of parental type in three point test cross. The lowest number depicts double…

Q: Miniature wings in Drosophila result from an X-linked allele (Xm) that is recessive to the allele…

A: If the X chromosome is to autosome pair ratio in the Drosophila is 1, the fly would be female. If…

Q: n Drosophila, singed bristles (sn) and cut wings (ct) are both caused by recessive, X-linked…

A: Mapping deals with sequence, in which genes appear on a chromosome and their distance apart. Mapping…

Q: Another cross in Drosophila involved the recessive, X-linked genes yellow (y), white (w), and cut…

A: As per out honor code, we are allowed to answer only three subparts. You have posted multiple…

Q: In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very…

A: Autotetraploid are the complex chromosome that form of four copies of single genome .

Q: You cross a true breeding, yellow-bodied, male fruit fly to a true breeding, wild-type, female fly…

A: Introduction :- Reciprocal cross is a cross in which the phenotypes of each sex are reversed as…

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.