Genes A and B are 20 map units apart on the X chromosome. In the following cross, what is the probability that the child indicated by the question mark will express both recessive phenotypes? ҲАВҲАВ Xab 어ㅁ XAB 어ㅁ ?

Q: In Drosophila, the sepia mutation (se, chromosome 3, position 26) results in dark brown eyes, while…

A: Introduction :- D. melanogaster is an ideal model organism due to a variety of characteristics. The…

Q: In sweet peas, gene C or P alone produces white flowers, the purple colour being due to the presence…

A: Dominance is a physiological influence on the same gene locus by an allele over its partner allele.…

Q: This pedigree consist of cystic fibrosis that is an inherited disease caused by f a recessive…

A: Cystic fibrosis is a genetic disorder in which the gene that produces the cystic fibrosis…

Q: Explain why dead females are never found in the F1 generation no matter which parents are crossed.

A: Sex- linked traits: In an XY chromosomal system of sex determination ,both X and Y chromosomes are…

Q: An allele in Drosophila produces a “star-eye” trait in the heterozygousindividual. (It is not…

A: In the important genes, when mutations happens the resultant progeny will produce lethal phenotypes.…

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

A: Alleles are the alternative forms of a gene. Allele can be dominant or recessive.

Q: represent autosomal genes and X and X' represent X-linked alleles in an organism with XY sex…

A: This cross is a polyhybrid cross involving at least 4 genes with 8 alleles. The genes are placed on…

Q: ear shape in dogs

A: It is defined as the process where the genetic information is passed down from parents to their…

Q: In a two factor cross, the longest possible map distance is 50 map units.  Explain why this is…

A: By finding the recombination frequencies of many gene pairs, we can make genetic or linkage maps. By…

Q: In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were…

A: When a cross takes place between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the…

Q: In corn, the genes v (virescent seedlings), pr (red aleurone), and bm (brown midrib) are all on…

A: The diagrammatic graphical representation of relative distance between linked genes of a chromosome…

Q: In a cross between AaBbCcDDee x aaBbCcddEe, what is the probability of  obtaining the following?…

A: Product rule is used in this case. The product of probability of each gene is done to find the…

Q: In the pedigree below, male II-1 has Klinefelter syndrome, which is the result of an XXY karyotype.…

A: Klinefelters syndrome occurs when an abnormal XY sperm fertilizes a normal X egg, or a normal Y…

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: Fruit flies can have straight wings (S) or curly wings (s), and they can have be female XX or male…

A: S denoting for straight wings is a Dominant or wild type trait. And s denotes recessive trait for…

Q: The recessive alleles k (kidney-shaped eyes instead ofwild-type round), c (cardinal-colored eyes…

A: Inheritance or heredity is passing-on one trait from the parents to the progeny by either asexual or…

Q: In corn, purple kernels (P) are dominant over yellow kernels (p) and starchy kernels (Su) are…

A: A chi-squared test, also written as χ2 test, is a statistical hypothesis test that is valid to…

Q: Draw a Punnett square for the dihybrid cross described below (it is the same story as given for…

A: X linked characters are those where the the gene in question is located on the X chromosome. Females…

Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…

A: Law of independent assortment is Mendel's dihybrid cross . It states that During the time of…

Q: In the classic "X" figure of the chromosome, is the whole X from one parent, or is one side of the X…

A: Need to find whether the X of the chromosome is from whole chromosome or both from mother and…

Q: In Drosophila, ebony body colour is produced by a recessive gene a and wild-type (gray) body colour…

A: Answer: DIHYBRID CROSS : It is the cross made between two traits of an individual.

Q: A normal female Drosophila produces abnormal eggs that contain all (a complete diploid set) of her…

A: Although the two mammals and fruit flies produce XX females and XY male, their chromosomes…

Q: In some plants, a true-breeding, red-flowered variety gives all pink flowers when crossed with a…

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

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…

Q: d The pedigree above shows inheritance of an X-linked recessive disorder. Use this pedigree to…

A: Introduction : In X- linked recessive disorder male and female both are affected but not…

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A: Crossing over is an interaction between homologous chromosomes that results in a lot of genetic…

Q: A PORTION OF THE LINKAGE MAP OF CHROMOSOME 2 IN THE TOMATO IS ILLUSTRATED HERE. o (oblate) ci…

A: Linkage map or genetic map is the representation of the linkage of genes in a chromosome. It used to…

Q: Vermilion eye color in Drosophila is sex-linked and recessive. What would be the phenotypes of male…

A: The sex-linked disease means the gene for the disease is present on X-chromosomes and is recessive…

Q: c) What are the possible parental and recombinant children from this marriage (10) O aff. (6) (6)

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

Q: Cystic fibrosis in humans is caused by mutations in a single gene and is inherited as an autosomal…

A: The genetic disorder Cystic Fibrosis (CF) affects the respiratory, digestive, and reproductive…

Q: In dogs, dark coat color is dominant over albino, andshort hair is dominant over long hair. Assume…

A: Hereditary qualities is the study of genes and heredity of how certain characteristics or attributes…

Q: Which of the Pedigree diagrams below is most likely to show a family with Sickle Cell Anaemia?

A: Sickle Cell anaemia is a genetic disorder. The sickle cell trait is inherited as autosomal recessive…

Q: In the following cross, imagine that you have a female fly that has two Xs and one Y due to a…

A: A punnett square is used to determine the genotypes and phenotypes of progenies for a couple.

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…

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.