Your friend tell you that he has a calico cat that is male even though you have learned that calico cats can only be female. What is the explanation for this?     the calico cat is not really male, your friend is confused.     the calico male is the result of non-disjunction and will have one Barr body     the cat is female and has 3 X chromosomes, hence it looks male     the cat must be colorblind

Q: Your friend is convinced his calico cat is male. He takes the cat to the vet. Sure enough the cat is…

A: Calico cats have tricolour coat. Their colouring is related to X chromosome that's why they are…

Q: Your friend is convinced his calico cat is male. He takes the cat to the vet. Sure enough the cat is…

A: A calico cat is a homegrown cat of any variety with a tri-variety coat. The calico cat is generally…

Q: Color blindness is a recessive X-linked trait. A normal couple has a color-blind child. At least one…

A: Introduction When Compared To The Standard For Normal Human Colour Vision, Colour Blindness Is…

Q: In dogs, albino white coat color is an autosomal recessive trait, while black coat is a dominant…

A: Autosomal recessive trait Autosomal traits are those that are controlled by somatic cells (not the…

Q: Haemophilia is a genetic disorder caused by a recessive allele on the X chromosome. A haemophilia…

A: Hemophilia is a disorder in which the normal clotting of blood does not take place. It occurs due to…

Q: Rett's syndrome is an x-linked dominant trait. Sally's father has Rett's syndrome. She has the…

A: Rett's syndrome is an x-linked dominant trait. It is given that Sally's father has Retts syndrome…

Q: A colorblind woman marries a man with normal vision. What is the chance that if they have a son he…

A: Color blindness is a sex-linked recessive gene regulated disease which is determined by the alleles…

Q: In dogs, albino white coat color is an autosomal recessive trait, while black coat is a dominant…

A: Autosomal recessive trait Autosomal traits are those that are controlled by somatic cells (not the…

Q: One gene for an eye color in dogs is sex linked (X chromosome). The dominant allele (G) produces…

A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…

Q: In the lab, a red flower and a yellow flower are crossed. The results are all orange flowers. Which…

A: Parental phenotypes of flower is given to be as red flower and yellow flower.  When these are…

Q: Color blindness is a recessive sex-linked trait on the X chromosome. A non-color blind heterozygous…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: The gene for eye color uses the symbol B for brown eyes (dominant) and b for blue eyes (recessive).…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: Steph Curry is really into his garden plants lately. He wants to have the best plants of any…

A: The plant which Steph bred was of dark green color with two different genotypes, one has a dark…

Q: Parakeets can have white, blue, green or yellow feathers. Feather color in parakeets is determined…

A: The color of feathers in parakeets is determined by genes B and Y. The different feather color…

Q: The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the…

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

Q: man who is a dwarf due to achondroplasia and has normal vision marries a color-blind woman of normal…

A: Achondroplasia is autosomal dominant trait ,it means only one dominant allele is enough to cause the…

Q: A class of students mated fruit flies to study the inheritance of traits. The crosses and their…

A: When the single cell divides two times and produces four cells which contains half of the original…

Q: John Legend and Chrissy Teigen are looking to have another child. However, they’re wondering how…

A: When only one single traits are compared in a punnet square, it is said to be a monohybrid cross.…

Q: The genotype of a green pea is unknown. It is crossed with a recessive yellow pea. The results are…

A: Introduction  A monohybrid cross is a genetic collaboration of two different alleles which has…

Q: In MONSTERS having TEETH (T) is DOMINANT and NO TEETH (t) is RECESSIVE You have a monster with teeth…

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

Q: A couple enters your genetic counseling clinic for some family planning advice. The woman’s father…

A: Pedigree is the theoretical study of the inheritance patterns of a particular trait in a family. It…

Q: What are the genotypes of the male and female parnets? What is the allele makeup of the male that…

A: Deuteranopia or color blindness is the type of color deficiency in relation to the vision where the…

Q: Duchenne muscular dystrophy is caused by a recessive X-linked allele. A man with this disorder _____…

A: Ans- 5. can pass it along to only his sons.

Q: What is the probability that they will have 3 normal girls?

A: Autosomal recessiveness is a condition when two recessive genes are expressed in an individual to…

Q: Duchenne Muscular Dystrophy is an X-linked recessive disease. A couple is wanting to have a child.…

A: Duchenne muscular dystrophy is the most common childhood form of the disease; it occurs in one of…

Q: 11. Farmer Jorge is not very happy. His cows keep attacking him with their horns. He heard from his…

A: Let the genotype of horned cows/bull be represented by H. Since the cow is homozygous recessive and…

Q: A couple wants to have 6 children. The mother is heterozygous for the sex-linked recessive trait for…

A: Color blindness is a sex-linked recessive disorder. The gene accountable for this disorder is…

Q: Color blindness is inherited as a sex-linked recessive disease. An affected male (X Y) marries a…

A: XRXr .= Carrier female (heterozygous ) XrXr. = Color blind female XRY=  Normal male  XrY= Carrier…

Q: Red–green color blindness is an X-linked recessive disorder in humans. Your friend is the daughter…

A: Introduction Probability is a statistical tool in genetics that lets us anticipate the likelihood of…

Q: A female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that…

A: Sex linked recessive: 1. In case of sex linked recessive disease trait should skip generation. 2.…

Q: In dogs, coat color is an autosomal dominant trait. The allele for a black coat is B and the allele…

A: 1) There are two phenotypes black or brown. A dog can any of these two coat colour. So, if we look…

Q: A color blind (X linked recessive) female marries a normal male. What percent of her daughters will…

A: Color blind is defined as a condition where there is an inability to differentiate between shades of…

Q: The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the…

A: X-linked recessive traits are those inherited through sex chromosome X and expressed on homozygous…

Q: In smurfs, blue body (b+) is dominant to white body (b), round nose (r+) is dominant to pointy nose…

A: In Smurfs, The blue body is dominant to white body. So ‘b+’ is dominant and ‘b’ is recessive allele.…

Q: One form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has…

A: Color blindness is a deficiency of color vision and the individual with color blindness have…

Q: Chloe has a family history of colorblindness. Corry, her partner, is affected by colorblindness.…

A: Chloe has a family history of colorblindness. Mother affected which means she has genotype XbXb and…

Q: One couple has three children with following sex and ages: one son (40 y.o.) and two daughters (35…

A: Pedigree analysis and pedigree chart represent the interrelations between the individuals from…

Q: The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the…

A: The genotype is the genetic constituent of cell.

Q: Red–green color blindness is an X-linked recessive trait in humans. Polydactyly (extra fingers and…

A: The characters in the form of alleles are transferred from parents to offspring. The trait can…

Q: White color (W) in cattle is dominant and brown color (w) is recessive. A farmer had a white bull.…

A: Alleles are the variants of a gene. In diploid organisms, there are two copies of each gene.…

Q: Colorblindness is an X linked gene. Normal vision (XN ) is dominant over colorblind (Xn). Cross a…

A: Human inheritance is studied by the technique known as pedigree analysis. Pedigree analysis is used…

Q: A couple can both see red (a sex-linked trait). The allele responsible for red color-blindness is…

A: Color blindness is a trait related to X-linked disorder that is recessive. If one gene is affected…

Q: A man is homozygous dominant for fair skin and heterozygous for black-straight hair, his wife has…

A: A genotype is an organism's set of heritable genes that can be passed down from parents to…

Q: In humans, an X-linked disorder called coloboma iridia (a fissure in the iris_ is a recessive trait.…

A: X-linked recessive inheritance is the genetic condition that happens due to the mutations in genes…

Q: The an has normal vision and the woman is colorblind. What is the probability that their daughters…

A: Colour blindness is an x linked recessive trait. When a colour blind woman marries a normal man her…

Q: White eye cross White eye color is a recessive trait found on the X chromosome. Also called…

A: Sex linked traits are those traits whose genes are present on the sex chromosomes. These may be…

Q: Since the Titanic sank Jack and Rose never got the chance to have children together. Rose spent the…

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

Q: A mother and father have four children; two sons and two daughters. What is the probability that the…

A: We are diploid (2n) organism and contain total 23 pairs of chromosomes. Between 23 pairs 22 pairs…

Q: c. Like cats, ogres have X-linked fur colors. They can have either an X that is blue or an X that is…

A: Note: Since you have asked multiple questions, we will solve the first three subparts for you. If…

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.