1.Show diagrammatically a genetic cross between the two flies and the possible genotypes and phenotypes of F1. What ratio of offspring would you expect if the body-color and eye-color genes are on different chromosomes (unlinked)? 2. When mating is actually carried out, most of the offspring look like the parents, but 3% have a gray body and purple eyes, and 3% have a black body and red eyes. Compare and discuss the observation with your answer in part (a)

Q: In female mamals, X chromosome inactivation often leads to phenotypic mosaicism. Assume that black…

A: Coat color in animals is controlled by either autosomal or sex-linked genes. Coat color is a…

Q: 5. Design a mating between a female with these three traits: purple (eye color), black (body color),…

A: Linkage is a phenomenon in which genes are placed on the same chromosome in close proximity to each…

Q: 1. SCO between genes B and C of nonsister chromatids 2 & 3 2. DCO between nonsister chromatids 2 & 3…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Do not use chatgpt

A: Progeny phenotypes:Abc - 420aBC - 435abc - 55ABC - 60abC - 14ABc - 16 The double crossover progeny…

Q: THEME 2: The figure below shows the types and numbers of gametes produced by a trihybrid. Phenotype…

A: Genotypes are the genetic characteristics of a person or an organism in relation to a specific gene…

Q: After mating a sinistral female with a dextral male all of the F1 progeny had dextrally colled…

A: Genotype :  Genotype is  refer to a gene or set of genes that leads to a single trait .

Q: 1. How many types of twins do exist? 2. What are "semi-identical" twins, and why are they so rare?…

A: When two sperm fertilized a single egg that split into two, then the twins are called semi-identical…

Q: 1. In a cross between mice the genotypes AB/ab x ab/ab, what is the recombination frequency if the…

A: Recombination frequencies have traditionally been used to create linkage maps or chromosomal maps…

Q: 04: In mammals there is a species where yellow and brown hair are sex linked genes when these two…

A: Incomplete dominance is the condition in which the dominant alllele is incompletely dominant over…

Q: Crossing over means the same as:   a. incomplete dominance   b. the process by which pieces of…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: Fruit flies are unusual in that the male fruit flies do not undergo crossovers during meiosis. If…

A: Meiosis is a process of cell division that reduces the chromosome number by half. In almost all…

Q: Forgetting crossing-overs, how many different gametes can be produced by a human being ? Illustrate…

A: Introduction:- Forked line method used to predict the genotype of an offspring. The genotype is the…

Q: With crossing over as shown in the picture, how many possible gametes can be produced? Which are…

A: Meiosis is a specialized type of cell division that occurs in the germ cells. It results in the…

Q: 1. What are the different types of chromosomes? Draw and discuss each. 2. Discuss the following…

A: A biological process called the sex determination mechanism controls how an organism develops its…

Q: 4. In fruit flies, opaque wing color is due to an X-linked dominant version of a gene. A female with…

A: The exchange of genetic material between two non sister chromatids is called crossing over..Crossing…

Q: What are the haploid genotypes of the gametes and frequencies/proportions of those gametes that can…

A: Meiosis cell division is the process of generation of two daughter cells that are genetically…

Q: In German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu, and curved wings, cv, are…

A: The likelihood of more inheritance of genes present on the same chromosome than expected is called…

Q: In humans, hemophilia is a recessive trait carried on the X chromosome. Imagine that a couple, Mike…

A: In sexually reproducing organisms the gamete formation occurs by meiosis process that ultimately…

Q: An organism has alleles G1 and G2 on one pair of homologous chromosomes, and it has alleles S1 and…

A: During the time of cell division , parent cell undergo splitting and produce new cells . Cell…

Q: 1. If the allelic composition of a gene is Aa, the genotype is said to be (homozygous,…

A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve first three…

Q: Please explain question 4  4. Red color vision is determined by a gene on the X chromosome (a…

A: The genes that are responsible for causing red-green color blindness are passed down on the X…

Q: If a fruit fly that has long wings and a gray body (LIGG) mated with another fruit fly that has long…

A: The genotype is the representation of the genetic complement of an individual with respect to one or…

Q: Please explain question 5  5. In some cats, black color is due to a sex-linked (x-linked)…

A: The X and Y chromosomes are the two chromosomes that decide sex in mammals. "Sex-linked" genes are…

Q: Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring…

A: Nondisjunction of X chromosomes during meiosis I will result in four abnormal gametes. Two gametes…

Q: All of the following can be associated with human blood type except A. Multiple alleles B.…

A: Meiosis It is the type of cell division that results in 4 daughter cells, each with half the number…

Q: same basic method. Procedure Make up your own genotype example and work out the crosses. 1 Traits: 2…

A: The Punnett Square is a simple method of predicting the probable outcome of genetic crosses. If your…

Q: 2.) In fruit flies, L = long wings and 1 = short wings. When a long-winged fly is crossed with a…

A: In the given question, The dominant trait is Long wings which can be denoted by L. The recessive…

Q: Feather colour in parakeets is controlled by two genes. Blue colour (B) is dominant over absence of…

A: Feather color of parakeets is controlled by two genes.  Blue color , B is dominant over absence of…

Q: In the fruit fly, vestigial wings and h produced by two recessive genes le different chromosomes.…

A: Answer

Q: 4. What are some of the limitations of karyotyping? 5. Define trisomy. Define monosomy. 6. Define…

A: Genetics involves inheritance, characteristics, DNA, genes, proteins, and chromosomes. Everyone…

Q: .Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The…

A: Hemophilia is a genetic bleeding disorder that happened by change or mutation in genes. In this…

Q: 1. B is a dominant allele coding for black fur on rabbits and b is a recessive allele coding for…

A: Gametes BBbBbBbbBBBbGametes BbBBBBbbBbbb1)Bb ( all the F1 offsprings are black)2)so 3/4 of the…

Q: 19 21 22 1> This individual's sex is female [ Choose] trisomy 21 karyogram 2n 2 The genetic disorder…

A: A karyotype is a pictorial representation of chromosomes present in the somatic cell of an…

Q: Sex determination in birds is different from that in humans. The sex chromosomes in birds are called…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: Lólor blindness in humans is due to an X-linked recessive allele. Turner syndrome is a condition in…

A: Turner Syndrome is caused by abnormal absence of X chromosome in the child thus bringing a karyotype…

Q: 6. In Drosophila, Bar eyes (B) is dominant trait located on the X chromosome, apterous wings (ap)…

A: The product rule is used in this case. The overall probability is calculated by the product of…

Q: I. In the fruit fly Drosophila melanogaster, tan body color (B) is dominant to black (b), and dark…

A: A dihybrid cross is a mating method in which the parents have two separate, genetically determined…

Q: A wildtype fruit fly (heterozygous for gray body and normal wings) is mated 2 poin with a black fly…

A: * Recombinant frequency is the total number of recombinants  by total number of all individuals into…

Q: 1. If one parent is Tt, what alleles can they pass on to an offspring? (we're talking about a parent…

A: The cross between the two types of plants in the same species is called the monohybrid cross. The…

Q: In mice, the a mutation results in albino mice, while mice with at least one copy of the A allele…

A: This question is a genetics problem that involves understanding the inheritance of two traits in…

Q: Which of the following is/are (a) reason(s) why crossing over between two genes on the same…

A: Introduction:-  crossing over is the exchange of genetic material ( segments of chromosomes )…

Q: Discuss the genetic variability introduced by crossing-over and independent assortment. How is this…

A: Definition. (1) In a population, the tendency for individual genetic features to differ from one…

Q: Fruit flies with the genotypes XghXgh and Xg+h+Y are crossed. Note that two X-linked loci are being…

A: Genotype refers to the genetic constitution of living organisms. The physical traits that are…

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.