In the garden pea, several different genes affect pod characteristics.A gene affecting pod color (green is dominant to yellow) is approximately7 mu away from a gene affecting pod width (wide is dominantto narrow). Both genes are located on chromosome 5. A thirdgene, located on chromosome 4, affects pod length (long is dominantto short). A true-breeding wild-type plant (green, wide, longpods) was crossed to a plant with yellow, narrow, short pods. TheF1 offspring were then testcrossed to plants with yellow, narrow,short pods. If the testcross produced 800 offspring, what are theexpected numbers of the eight possible phenotypic combinations?

Q: In Drosophila, a fully heterozygous female with the X-linked recessive genes a, b, and c (not…

A: A fully heterozygous female with x linked gene a, b, c was mated with male a, b, c. Parental cross -…

Q: Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7…

A: Genetic mapping is a method which considers the recombination frequency as a measure of distance…

Q: n a certain plant, the dominant form of gene P codes for purple flowers while the recessive form…

A: Gregor Mendel discovered the fundamental doctrines of inheritance through his study of pea plants.…

Q: In Drosophila, a heterozygous female for the X-linkedrecessive traits a, b, and c was crossed to a…

A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…

Q: Inversions are known to affect crossing-over. The following homologs have the indicated order (the…

A: Insertion, deletion, substitution, and inversion are the four types of mutations. Insertion is a…

Q: In fruit flies, the autosomal recessive mutation pr causes brown eyes whereas the cn mutation causes…

A: A genetic characteristic or disease can be handed down from one parent to the next through autosomal…

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: In the fruit fly, recessive mutations in either of two independently assorting genes, brown and…

A: In Drosophila, as well as in many other plants and animals, pigmentation is highly variable both…

Q: n pea plants, tall (T) is dominant to dwarf (t) and yellow (Y) is dominant to green (y).  In a cross…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: The phenotype of vestigial (short) wings (vg) in Drosophila melanogaster is caused by a recessive…

A: It is given that the vestigial wing and hairy body are caused by recessive wings. These are encoded…

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

A: Blue colored flowers is because of the A alleles and slate colored flowers result from a alleles; G…

Q: During one of the genetics lab, you notice a few Drosophila fruit fly that has a rainbow body. You…

A: Few important terms should be kept in mind: Drosophila fruit fly have XX females and XY males.…

Q: Red body in flies are dominant to yellow body, and long wings are dominant to short wings. A test…

A: This means the parent fly with red, short-wings is heterozygous for the body color and also the…

Q: Coat color in cats is determined by genes at several different loci. At one locus on the X…

A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…

Q: In an autotetraploid organism, the gene controlling coat color is very near the centromere of the…

A: Autotetraploid Organisms --- Autotetraploidy -- It is defined as individual or strain whose…

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: In Drosophila the genes forked bristles (f and f+) and vermilion eyes (v and v+) are ~24 m.u.  apart…

A: During meiosis, genes between homologous chromosomes are transferred in genetic recombination, which…

Q: You are studying tail length in a species of mice, where some mice have long tails and some have…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

Q: three recessive genes a, b, and c in the model plant Arabidopsis are found to be linked on…

A:

Q: The gene that controls the Duffy blood type is D (affected D is dominant to d) and the gene that…

A: D allele encodes duffy blood type and it is dominant over d allele. dd encodes wild type.  L allele…

Q: In mice, a dominant allele that causes a short tail is located on chromosome 2. On chromosome 3, a…

A: A dominant trait is the one which expresses itself in heterozygous condition while recessive…

Q: In cucumbers, heart-shaped leaves (hl) are recessive to normal leaves (Hl), and having numerous…

A: Given-  1. Heart shaped leaves in cucumber is recessive and is designated as hl 2. Normal leaves are…

Q: Two different genes control the expression of kernel colour in Mexican black corn: black pigment…

A: Introduction :  Genetic traits are passed down through inheritance from parents to their offspring,…

Q: Deduce the phenotypic proportions in the progeny of thefollowing crosses of autotetraploids in which…

A: Phenotypic proportion shows the ratio of offspring's combination genes and these are similar in the…

Q: In the fruit fly, Drosophila melanogaster, eye color is affected by an X-linked gene with two…

A: The objective of this question is to predict the phenotypes of the F1 and F2 generations in a cross…

Q: In Drosophila, a cross was made between females and wild-type males. The female parents expressed…

A: In Drosophila , there are three types of trait :-  A ) Trait for wing  B ) Trait for body colour  C…

Q: Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7…

A: Gene mapping is used to calculate the distance between the two genes, which is also helpful in the…

Q: In Drosophila, a female with three recessive traits, miniature wings, (m), ebony body (e) and rough…

A: This question is about a genetic problem involving the inheritance of traits in Drosophila flies.…

Q: A Drosophila fly heterozygous for alleles for black body, dumpy wings, and purple eyes but…

A: In drosophila we use +++ to indicate wild type, Black body is represented by 'b' ,drosophila with…

Q: You design Drosophila crosses to provide recombinationdata for gene a, which is located on the…

A: The drosophila is commonly called fruit fly, and it is commonly used for the study of genetics. The…

Q: Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type…

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

Q: Waxy endosperm (wx), virescent seedling (v), and shrunken endosperm (sh) are all recessive mutants…

A: Introduction: Endosperm is a tissue present inside the seeds of most of the angiosperms which…

Q: In Drosophila, two genes w and s are X-linked and are 25 map units apal. heterozygous female fly…

A:

Q: In corn, pigmented aleurone (R) is dominant to colorless aleurone (r), and green plant color (G) is…

A: Given  Green (G) is dominant over yellow (g)  Pigment (R) is dominant colourless (r)  Plant one…

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

A: The allele for miniature wings is represented with w And the allele for long wings with + The allele…

Q: In Drosophila, an X-linked recessive mutation, Xm causes miniature wings. List the F2 phenotypic…

A: Inheritance patterns are broadly of two types :- autosomal and sex-linked. They are further of two…

Q: The loci of the two pair of genes concerned are on the same pair of chromosomes (assuming no…

A: Crossing over is the exchange of chromosome segments during cell division such that many new…

Q: In cucumbers, heart-shaped leaves (hl) are recessive to normal leaves (Hl) and having numerous fruit…

A: “Dominant and recessive” traits are the two different forms of the gene. The trait which is…

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.