In barley, a self-fertilizing species that can be cross-fertilized, two true-breeding strains with virescent leaves occur. In strain A, the trait is caused by a cytoplasmic gene while in strain B it is by a recessive chromosomal gene. Illustrate the crossing of each F1 in (a) to each of the paternal strains What phenotypes would you expect among the progeny, and in what proportions in each of the following? Illustrate your crosses below, indicate and the female and male parent for each cross, and write the phenotype of all the parents and offspring(s).

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: 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 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: Multiple crosses were made between true-breeding lines of black and yellow Labrador retrievers. All…

A: Black ×Yellow →All Yellow (F1) F1×F2→121 Yellow +9 Black +30  Chocolate Total offspring in F2…

Q: The alleles his-5 and lys-1, found in yeast, result in cells that require histidine and lysine for…

A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…

Q: A female of genotype a b c + + + produces 100 meiotic tetrads. Of these, 68 show no crossover…

A: A four-part structure that forms during the prophase of meiosis and consists of two homologous…

Q: . If the G locus were 50 or more map units from the centromere, what types and proportions of…

A: Tetraploid means the the species has 4 copies of the genes present ie two diploid gametes would meet…

Q: Based on the information you discovered in the previous problem, answer the following:a. A female…

A: Genes are the basic unit of inheritance and are responsible for all the observable and genotypic…

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: In garden peas, long stems are dominant to short stems, and yellow seeds are dominant to green…

A: Genes that are found on the different chromosomes or far apart on the same chromosome and when they…

Q: If 3 completely dominant gene pairs A a, B b, C c are assorting independently, how many progeny…

A: a. Progeny genotypes means the trait in daughter cell should contain all the alleles which are…

Q: When Calvin Bridges observed a large number of offspring from a cross of white-eyed female…

A: Failure in the segregation of daughter chromosomes during the gametogenesis in meiosis-I and…

Q: ley, a self-fertilizing species that can be crossed fertilized, two true-breeding strains with…

A:

Q: Suppose you have an AAaa tetraploid plant and it undergoes self-fertilization. At least two copies…

A: The tetraploid plant is the plant having somatic cells with four chromosomes. Here the tetraploid…

Q: In tomatoes, dwarf (d) is recessive to tall (D), and opaque (light-green) leaves (op) are recessive…

A: The parents given are, D opd Op×D opd op The distance distance between the genes is given as 7 m.u.…

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: 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 the haploid yeast Saccharomyces cerevisiae, the twomating types are known as MATa and MATα. You…

A: Saccharomyces cerevisiae refers to a species of yeast used in brewing, baking, and winemaking…

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

A:

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 garden peas, long stems are dominant to short stems, and yellow seeds are dominant to green…

A: According to the question give that :  Long stems are dominant to short stems, So, dominant allele…

Q: In Neurospora, his2 mutants require the amino acidhistidine for growth, and lys4 mutants require…

A: Neurospora is a type of a fungus that has axon like striations on its spores. The spores of the…

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 Drosophila, a cross was made between a yellowbodied male with vestigial (not fully…

A: Genes can be defined as an important unit of inheritance. A pair of genes is called allele. These…

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: Radishes may be round, oval and lomg. Aside from this, they may be red, purple or white in color.…

A: The Result of various crosses are:-

Q: In Drosophila, males from a true-breeding stock withraspberry-colored eyes were mated to females…

A: Recombination frequency (RF) is the rate of occurrence of recombination between a pair of linked…

Q: If the G locus were 50 or more map units from the centromere, what types and proportions of gametes…

A: Recombination in terms of genetics describes the process that explains the exchange of genetic…

Q: Pigment in mouse fur is only produced when the C allele is present. Individuals of the cc genotype…

A: The alleles for the MC1R gene that a mouse inherits determine the color of its fur. Mice with two…

Q: . The pedigree below was obtained for a rare kidney disease.a. Deduce the inheritance of this…

A: Diseases have been researched extensively in the recent times. It is observed that diseases are not…

Q: a. Among the progeny of a self-fertilized semisterilecorn plant heterozygous for a reciprocal…

A: Reciprocal translocation is the event when parts of non-homologous chromosomes are exchanged. This…

Q: Suppose that you are tending a mouse colony at a genetic research institute, and one day you…

A: Sex-linked: These are the traits that are associated with sex chromosomes X and Y. The inheritance…

Q: In garden peas, long stems are dominant to short stems, and yellow seeds are dominant to green…

A: Long stems (L_) are dominant to short stems (ll) Yellow seeds (Y_) are dominant to green seeds (yy)…

Q: In the accompanying pedigree, the vertical lines stand for protan color blindness, and the…

A: Answer :  As seen in the inheritance pattern, both the conditions show presence only in males. This…

Q: If genes a and b are 30 m.u. apart, what percentage of the gametes produced by an AaBb individual…

A: In a allele the distance between two gene a and b is 30 map unit. That's mean the recombinant…

Q: Three fruit shapes are recognized in the summer squash (Cucurbita pepo): disk-shaped, elongated, and…

A: Genes are the hereditary units of life. The inheritance pattern was introduced by Gregor Mendel,…

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: A rooster with a particular comb morphology calledwalnut was crossed to a hen with a type of comb…

A: Hello there! As you have posted multiple questions, we are answering only the first question. If you…

Q: . Male house cats are either black or orange; females areblack, orange, or calico.a. If these…

A: Part A. As per the date, these traits are X-linked. As we know that cats have X linked orange locus…

Q: In barley, a self-fertilizing species that can be crossed fertilized, two true-breeding strains with…

A: Option(B) is correct answer. Reciprocal cross is done where different parental types are used both…

Q: Parts a-c of this question address the crossing of parents with the following genotypes: A/a; B/b;…

A: In the given question, a cross is made between parents- A/a; B/b; C/c; D/d; E/e; F/f…

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

A:

Q: . In a particular kind of ornamental flower, the wildtype flower color is deep purple, and the…

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

Q: Summer squash exist in long, spherical, or disk shapes. When atrue-breeding long-shaped strain was…

A: A single gene can exist in various forms in the same locus and code for different proteins and hence…

Q: This is a pedigree for a dominant trait caused by gene A in humans. Shaded symbols show individuals…

A: The trait is a dominant trait.  Thus, genotype of people having the trait - AA or Aa.  Genotype of…

Q: In Drosophila, males from a true-breeding stock with raspberry-colored eyes (instead of normal…

A: True breeding is a sort of mating in which the parents generate kids with the same phenotype as the…

Q: Explain the following

A: Gametogenesis is the method leading to the formation of the female and male germs cells. The…

Q: Females of wild-type Strain A and males of mutant Strain B, as well as females of mutant Strain B…

A: Reciprocal crosses are done by taking both genotype (once a male and once a female).

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: 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 .

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.