Gargoyles are tetraploid. A single gene determines whether they have wings or not. This gene has a completely dominant winged allele (W) and a recessive wingless allele(w). Now cross two winged gargoyles with genotypes WWWw  X  WWWw. so what will be the possible distribution of the progeny ?

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: cross between two heterozygotes fruit flies with purple eyes and white bodies (EeBb) results in 4…

A: Parent 1: EeBbParent 2: EeBbEye color : EeHomozygous dominant (EE): Purple eyesHeterozygous (Ee):…

Q: 11. In cockroaches, red exoskeletons (bodies) are recessive to black exoskeletons. A red male…

A: Allele and Phenotype letter Phenotype C Back exoskeleton c red exoskeleton All Genotype…

Q: affected daughters dominant Because all sons This trait shows a vertical inheritance pattern, which…

A: Pedigree charts analyze the inheritance of a trait or disorder down the family tree. It also shows…

Q: (A) Which of the above offspring are recombinant? (B) What is the map distance between the genes?

A: ANSWER1. Recombinants: These are those offspring that have traits different from their parents.…

Q: The male I-2 in the pedigree below has “hairy ears,” a trait thought to be due to a gene or genes in…

A: Y-linked inheritance also known as holandric inheritance is the inheritance of genes that are…

Q: Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To…

A: Recombination frequency is defined as the proportion of recombinant offspring produced in a genetic…

Q: Draw a three-generation pedigree of an Autosomal Dominant family, with three children for every…

A: Pedigree analysis is a useful approach for understanding hereditary disorders in humans. Pedigree…

Q: In fruit flies, an X-linked recessive mutation called vermillion (v) results in vermilion (bright…

A: Sexual dimorphism in male and female drosophila facilitates the study of sex-linked inheritance…

Q: Let’s suppose that a gene affecting pigmentation is found on the Xchromosome (in mammals or insects)…

A: Introduction  The total chromosomes in the body are divided into two groups: Autosomes…

Q: A species of flower has red as the dominant flower color. Which of the following shows an example of…

A: Test cross tells us about the genotype of organism.In a testcross, the individual with the unknown…

Q: Sex-reversed females with XY were found to be missing SRY gene on their Y chromosomes, while…

A: Sex determination in humans is a complex process impacted by the combination of sex chromosomes and…

Q: Harbour seals are an aquatic mammal found in many oceans. In seals the gene E is X-linked and F,G,…

A: Mammals have XY sex determination system. Aquatic mammals would also have the same sex determination…

Q: Wild type fruit flies have grey bodies and straight wings. Yellow bodies and curly wings are both…

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

Q: 3. Flip the coins 100 times and record your results in the chart below. Class results Your results…

A: 1- Here each person has one coin. And each coin can be considered as parent with the genotype Aa of…

Q: Imagine a germ cell for an animal that is 2n=4. Gene A and B are found on chromosome one, and the…

A: Meiosis is the cell division process that is responsible for the production of four haploid (n)…

Q: We know that the most common form of color blindness results from an X linked recessive gene. A…

A: Colour blindness is an X linked recessive disorder.

Q: In Figure 2-11, assume (as in corn plants) that allele Aencodes an allele that produces starch in…

A: Gregor Mendel performed the experiments on Pea plants in order to understand how the traits are…

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 the following pedigree, is the disorder’s mode of inheritanceautosomal dominant, autosomal…

A: In this pedigree, affected individuals appear in every generation. There are no carriers shown in…

Q: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

A: A chromosome is a highly condensed form of DNA and It wrapped into Nucleosomes. Humans have 22…

Q: Table 8.1 shows that Turner syndrome occurs when an individual inherits one X chromosome but lacks a…

A: Chromosomal deletion syndrome occurs when whole or part of chromosomes are missing. Turner Syndrome…

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: The above pedigree shows inheritance of a human disease caused by a single gene.  Which modes of…

A: Pedigree analysis helps us to understand the mode of inheritance of a particular disease by…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: In Drosophila, the recessive mutations hairy (h) causes a hairy body and curled (cu) causes curled…

A: h causes a Hairy body and cu causes curled wings.Recombination causes the exchange of genetic…

Q: In the following pedigree of an X-linked recessive trait, what is the likelihood a child will be…

A: X linked recessive inheritance is a type of inheritance in which mutation occurs in both the X…

Q: Consult Figure 3. This pedigree illustrates the inheritance of Charcot Marie Tooth disease, which is…

A: Charcot Marie Tooth is a sex-linked dominant disorder. It is a neuromuscular disorder that damages…

Q: The pedigree below shows a family where several members (filled boxes) are affected with a genetic…

A: Pedigree : Pedigree analysis is a graph that depicts a family tree and shows which family members…

Q: What is the genotype of the male l-1, and which of the offspring in generation IIl must be attached…

A: To answer this, we need to take in facts and work with them Since the trait is recessive, only…

Q: How come the conclusion came to be as half of the son and none of the daughter have precorious…

A: It is a condition in which a child's body changes in an adult too soon before pubery.

Q: A woman with type A blood and a man with type B blood have a child with type O blood. Can this man…

A: Blood group is the type of blood we have depends on its genotype. There are 4 main blood groups –…

Q: In this family tree, individuals with the trait are shown in black.  Circles represent biological…

A: Pedigree represents the familial representation of individual for a particular trait.

Q: n mice, the Ay allele of the agouti gene is recessive lethal, but it is dominant to wild type for…

A: Introduction  In genetics, dominance and recessiveness refer to the relationship between two or more…

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: The following pedigree tracks how cystic fibrosis (a recessive disorder) has passed in a family.…

A: Pedigree analysis helps us to understand the mode of inheritance of a particular disease by…

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: In humans, webbed fingers is dominant (W-); non webbed fingers is recessive, ww. A man with webbed…

A: We have,  Allele representing webbed fingers - W Allele representing non-webbed fingers - w Since…

Q: Please explain You are interested in the inheritance of two autosomal genes in a type of beetle.…

A: Introduction :-  There are two types of chromosomes, on the basis inheritance of same ( equally…

Q: You are an allele on a single uncondensed chromosome in a Yellowfever-carrying mosquito (Aedes…

A: The fundamental and active process by which a parent cell after replication of its components,…

Q: Think about the same two genes that were mentioned in Question 23—R and T, present in the…

A: Mendel's law of biological inheritance includes the law of dominance and uniformity, the law of…

Q: In C. elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X…

A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…

Q: The pedigree above shows inheritance of inability to taste PTC (shaded individuals cannot taste it),…

A: The given pedigree shows presence of affected child (III-5) from unaffected parents (II-5 and II-6).…

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.