This question relates to the inheritance of two linked genes, the ‘E gene’ and the ‘B gene’. Each gene has a dominant allele, shown with the upper-case letter (E and B, respectively) and a recessive allele, shown with the lower-case letter (e and b, respectively). Two pure line parents were crossed together to produce a dihybrid F1 individual. This F1 individual is crossed with a tester parent. The F2 test cross progeny are stated below. Use this information to answer the following questions. F2 Test cross progeny Genotype       Number eB/eb              75 Eb/eb              76 EB/eb             25 eb/eb              24 Which one of the following options most accurately states the genotype of the dihybrid F1 individual in this scenario? eB/eB Eb/eb EB/eb eB/Eb

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A: The normal eyes are red in Drosophila melanogaster. Normal red eyes are represented by W. Whereas,…

Q: The following pedigree shows the inheritance of a human disorder. Affected individuals are shown…

A: A pedigree helps us to determine the inheritance of a trait across generations in a family.

Q: This question deals with Mendelian Genetics. Read each part carefully before you answer it. In the…

A: Each gene may exists in alternative forms which codes for different version of a particular trait or…

Q: Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower…

A: In the given context, there are two independent genes, denoted as A and B, which are responsible for…

Q: In pigs, let’s assume that a straight tail (T) is dominant to a curly tail (t).  Let us also assume…

A: According to the Mendelian inheritance each gene has two alleles that determines the phenotype of an…

Q: Brachydactyly type D is human autosomal dominant condition in which the thumbs are abnormally short…

A: Brachydactyly type D is a genetic abnormality, which occurs due to a dominant gene mutation in the…

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

A: The Recombinant Frequency tells us about the percentage of or the proportion of recombinants present…

Q: The individuals with a certain disease are shown in this pedigree. The disease is caused by an…

A: By analyzing a pedigree, we can determine genotypes, identify phenotypes, and predict how a trait…

Q: n an F1 cross, Y/y x Y/y, 3/4 of the plants are yellow and 1/4 of the plants are green. Determine…

A: When two dominant parents produce a 3:1 phenotypic ratio in the offspring, it indicates that both…

Q: A man, Penoy, whose sister died in early childhood from a recessive lethal disease marries a woman…

A: In the given scenario, as the male survived beyond childhood but is a carrier of the disease, it…

Q: A cross was performed between a female curly winged fly and a normal (straight) winged male fly.…

A: As per the question, a cross was performed between a female curly winged fly and a male straight…

Q: In Drosophila, the gene for wing type is known to be autosomal with vestigial wings (vg) known to…

A: Vestigial wings are those which does not help in flying. They possess defected vestigial gene on the…

Q: || AB ||| AA 1 0₂ AA AB 2 BB 0₁ In this pedigree A and B represent alleles at a marker locus very…

A: Introduction : The study of a specific trait that is passed down from one generation to the next is…

Q: Earlobe attachment is controlled by a single gene.  The free (F) condition is dominant over the…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: The non-wild-type alleles are k (clipped wings), l (long tail), and m (magical powers). The parental…

A: Here the test cross that produced 1572 offspring was conducted between k/k+  l/l+  m/m+…

Q: this disorder? (Is it autosomal dominant? Autosomal recessive? X-linked dominant? X-linked…

A: Inheritance inheritance is described as a pattern of transfer of genes from the parental generation…

Q: ear shape in dogs

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

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: the same conditions we used in class). Write erring to the cross DdFfGgHhRrTT x DDffGgH w many…

A: The study of heredity in general and genes in particular is known as genetics. Genetics is one of…

Q: There are two traits not shown in the pedigree: albinism (autosomal recessive) and Marfan syndrome…

A: A pedigree chart is a graphic that depicts the incidence and emergence of phenotypes of a certain…

Q: A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of…

A: Gene mapping was discovered by Alfred H. Sturtevant. He discovered this in order to identify 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: A parental cross between homozygous wild-type red eyed females (X+ X+) were crossed with white eyed…

A: Chi-square (X2) analysis helps us to compare the observed data of an experiment to the expected…

Q: A recessive maternal effect mutant in zebrafish, called ichabod, results in embryos lacking heads…

A: Maternal effect in zebrafish is a situation where the phenotype of an organism is determined not…

Q: Both hemophilia (h) and favism (gd) are inherited as X-linked recessive traits. Hemophilia is an…

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

Q: In Drosophila melanogaster, white eyes (w) is an X-linked recessive mutation. Normal eyes are red…

A: Red eyes (XW) = dominant (normal)white eye (Xw) = recessive (affected)Normal wing shape(Vg) =…

Q: In a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring will be…

A: dihybrid organism is one that is heterozygous at two different genetic loci.

Q: The pedigree below represents the inheritance of a rare genetic disorder (members joining the…

A: The answer is written in explanation box below:Explanation:…

Q: Assume no Bombay allele for this entire question.) Consider a cross between someone with blood type…

A: The blood group determination is based on the presence or absence of antigens on the surface of red…

Q: Polydactyly is an autosomal dominant condition in which an individual is born with more than five…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: The genes responsible for albinism (A or a) and pink eyes (P or p) in mice are linked and wild-type…

A: The genes forms the hereditary units of the life. At the same time it consists of two alternative…

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: The fly with vestigial wings is crossed with the fly with normal wings shown in the upper-right…

A: The length of wings in Drosophila is determined by the wing length gene. There are two distinct…

Q: ewith a long tailed mouse. Multiple cresses of this short-tailed mouse to long-taled mice produces…

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

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.