Red–green color blindness in humans is due to an X-linked recessive gene. A woman whose father is color blind possesses one eye with normal color vision and one eye with color blindness. (a) Propose an explanation for this woman’s vision pattern. (b) Would it be possible for a man to have one eye with normal color vision and one eye with color blindness?.

Q: Let’s suppose that two different X-linked genes exist in mice,designated with the letters N and L.…

A: The distance between the two genes N and L  can be surveyed by making crosses and by examining the…

Q: In humans, baldness (Xᵇ) is a recessive sex-linked trait. Two people with normal hair (Xᴮ) have a…

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

Q: Maleness and Male Fertility Are the OnlyKnown Y-Linked Traits in Humans Explain?

A: Humans have an XX-XY type of chromosomal determination of sex. Females possess two homomorphic or…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal…

A: Achondroplastic dwarfism is an autosomal dominant inherited disorder which causes a type of…

Q: A human disease known as vitamin D–resistant rickets isinherited as an X-linked dominant trait. If a…

A: Sex determination is the process by which an individual develops into a female or a male. The…

Q: What are twins?Genetically what are the twotypes of twins that can begenerated?

A: Pregnancy is also termed as gestation during which one or more offspring develop in the uterus of a…

Q: Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color…

A: The red green color blindness trait is encoded by the gene present on X chromosome.

Q: In cats, orange coat color is determined by the b allele, and blackcoat color is determined by the B…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: What sex ratio would you expect among the offspring of a cross between a normal mape mouse and a…

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

Q: Why is the gene for eye color in drosophila present on the X chromosome ?

A: Gene is the basic unit of heredity for all life forms. It is transferable from one generation to its…

Q: For an X-linked recessive allele, what proportion of female offspring will be carriers in the cross…

A: X - linked recessive allele -  This type of allele is caused due to genetic mutation in the gene. In…

Q: In humans, one of the genes determining color vision islocated on the X chromosome. The dominant…

A: Sex-linked disorders generally have genes associated with the X chromosome. It is studied under the…

Q: A cat is born with two X chromosomes and one Y chromosome. One of the X chromosomes carries the…

A: The fur color of the cats are generally controlled by genes present on the X-chromosome. One form of…

Q: Figure 5.1 presented abbreviated pedigrees looking at the inheritance of X-linked human conditions.…

A: Double heterozygote = Individual 1 in generation II, if the mother in generation I is homozygous…

Q: Which sex chromosome (X or Y) carries the gene for eye color in Drosophila?

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Q: Two short-haired cats mate and produce six shorthaired and two long-haired kittens. What does this…

A: Each character has traits that could be either dominant or recessive. The dominant trait can express…

Q: A purebred, red-eyed female fruit fly is mated with a white-eyed, male fruit fly. White eyes are…

A: All mammalian organisms exhibit sexual dimorphism. It means that there is the presence of a male and…

Q: Red-green color blindness is inherited as an X-linked recessive (Xc).  If a color-blind man marries…

A: Heterozygous means an individual having two different alleles of a gene. (In this case, the woman is…

Q: Which of the following is not a characteristic of X-linked recessive traits in humans?   a.…

A: X linked recessive is a condition caused due to recessive mutant genes located in X chromosomes. In…

Q: What evidence indicates that a trait is coded by a dominant allele on an autosome?

A: Answer: AUTOSOMAL DOMINANT =  It is the condition when the trait is expressed by the 22 chromosomes…

Q: If children obtain half of their genes from one parent and half from the other parent, why aren't…

A: Genes  Genes are the hereditary units of DNA which transfer from parents to their offsprings. Genes…

Q: How many Barr bodies in a person with genotype XXXXX? How is the structure of a Barr body different…

A: The mammalian males contain XY chromosome and females contain XX chromosome. So, the number of…

Q: How can we solve for a X-linked trait gene problem? . If a heterozygous parent (AB/ab) is…

A: In living organisms, the differences in the specific traits are due to the presence of two versions…

Q: What is the difference between X-linked dominant and X-linked recessive traits?

A: The sex chromosomes are present in pairs in the humans and several other organisms. These…

Q: Why is it that so many of the sex-linked traits we talk about in humans are carried on X chromosomes…

A: Traits can be dominant, recessive, sex linked recessive or sex linked dominant. Dominance is the…

Q: The inheritance in short wings in Drosophila fruit flies is an x-linked trait, recessive. Which…

A: X-linked recessive inheritance is caused when a mutation occurs in the X-chromosome therefore a male…

Q: What is the approximate percentage chance that individual V.2, shown in the pedigree diagrams above…

A: A recessive attribute is one that may be detected within the relationship between 2 variants of a…

Q: In fruit flies, eye color is carried on the X chromosome. The allele for red eyes is dominant over…

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

Q: You cross a fly with straight wings with a fly with curved wings to produce the F1 generation, all…

A: In genetics, dominance refers to the phenomenon of one gene variant (allele) on one copy of a…

Q: What are twins? Genetically, what are the two types of twins that can occur?

A: Introduction In this question we have to define twins and have to discuss about the types of twins,…

Q: A) Calculate the map distance separating the three genes B) Which gene is in the middle?

A: Symbol  white eyes = r short wings = l  ebony bodies = g    red eyes = R long wings = L  Gray bodies…

Q: In humans, the mic2 gene (involved in antibody production) is found on sex chromosomes and has…

A: The pseudoautosomal inheritance is observed for the allele in the identical regions of X and Y…

Q: The introduction to this chapter described the search for genes that determine pattern baldness in…

A: For the alleles to be inherited in a Mendelian pattern they must follow the laws of inheritance…

Q: Refer to the pedigree shown in Question 1. What are some examples of parent-child trios that allow…

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: The initial step is to decide the request for the three genes.This should be possible by assessing…

Q: In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal…

A: According to the given question, In mice, dwarfism is caused by an X-linked recessive allele, and…

Q: Cat breeders are aware that kittens expressing the X-linked calico coat pattern and tortoiseshell…

A: Gene is the unit of heredity that is transferable from the parent to the offsprings. The function of…

Q: A certain type of congenital deafness in humans is caused by a rare autosomal (not X-linked)…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: In a species of dog, a mutant gene that causes deafness is found on the Y chromosome. What type of…

A: The sex chromosome of dog is XY (Male) and XX (Female). The mutant gene of Y-chromosome is…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

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

Q: In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

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

Q: Red-green colorblindness is inherited in an X-linked recessive pattern in humans.  A colorblind man…

A: X linked recessive inheritance is a mode of inheritance in which mutation in a gene is found on the…

Q: Clark Kent and Lois Lane Kent are about to have a (Super) baby. As Superman, Clark possesses amazing…

A: In humans, the 23rd pair of chromosome is called the allosome or the sex chromosome. In males, the…

Q: en colorblindness in humans is recessive and x-linked. if a woman,  heterozygous for colorblindness…

A: An Individuals receive two variant of each gene from each parent are known as alleles. These allele…

Q: In fruit flies, Cinnabar eyes are encoded by a recessive allele located on the X chromosome. If a…

A: An allele may be defined as different forms of the same gene. The dominant allele is the one that…

Q: For an X-linked recessive allele, what proportion of female offspring will be carriers in the cross…

A: The X-linked recessive disease is caused by the presence of one X-linked recessive allele. It is an…

Q: The following X-linked recessive traits are found in fruit flies:vermilion eyes are recessive to red…

A: To calculate The map distance separating two genes

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.