The human male never passes on the gene for haemophilia to his son. Why is it so?

Q: A woman who is type O gives birth to a baby who is also type O. In a paternity case, a man claims…

A: There are four major blood teams (blood types): A, B, AB, and O. The genes you inherit from your…

Q: A parent has type O blood what blood types would his/ her children have and are there any blood…

A: ABO Blood group system was identified by Karl Landsteiner in the year 1900.

Q: If a parent is type O blood will all their childre and or granchildren be type O why or why not?

A: ABO blood group is a type of multiple allelism. In ABO blood grouping, A and B show co- dominance.

Q: Explain why a woman carrying the gene forhemophilia can produce two hemophiliac sonswhen she is…

A: A disorder in which blood doesn't clot normally because of a lack of sufficient blood-clotting…

Q: A woman has type O blood.  Her child has type O blood.  Could a man with B blood type be the father?

A: Blood is a fluid that circulates continuously and gives the body nutrients, oxygen, and waste…

Q: How could a child inherit a disease that neither parent has?

A: In Mendel experiment F1 heterozygote Tt to be exactly like the parent in appearance. Because one…

Q: Hemophilia is an X - linked , recessive trait . If a man who is normal , mates with a woman who is a…

A: Inheritance pattern is a type of pattern which determines how traits are transmitted from parent…

Q: A type B individual may have the genotype___________ or the genotype ___________.

A: A blood test is used to determine whether the A and/or B characteristics are present in a blood…

Q: If you cross a female carrier of hemophilia with a normal, healthy male, what are the chances of…

A: Hemophilia is the genetic disorder inherited in X-linked recessive pattern. It is a bleeding…

Q: Mary has type O blood type . Frank has homozygous type B blood type. Mary had a child with type O…

A: Mary genotype is OO while the male has genotype BB so when we cross these we get BO,BO,BO,BO blood…

Q: Why are children less likely to develop carcinomas?

A: Numerous body organs work in a coordinated manner. An abnormal condition that hinders optimum body…

Q: Explain why it is not possible for two parents, one with type AB blood and the other with type O…

A: Blood group is classified based on the presence and absence of antibodies and inherited antigenic…

Q: Peter is a 28-year-old man whose father died of Huntington’s disease. Peter’s mother shows no signs…

A: The defect in the gene results in various disorders and this genetic disorder can be inherited from…

Q: Given this history only, what are the chances that their child will have cystic fibrosis? Is there…

A: Question - Given this history only , what are the chances that their child will have cystic fibrosis…

Q: A mother with blood type A has a child with blood type B. What blood type(s) would a man have to…

A: Humans follow ABO blood group system in which three genes are responsible for determining the blood…

Q: What cells produce hCG and why is it important?

A: hCG (Human Chorionic Gonadotropin) is a glycoprotein hormone and is also known as the pregnancy…

Q: A phenotypically normal man, who has a hemophiliac brother, marries a normal woman, who is not a…

A: Hemophilia is an X-linked recessive disorder so, an individual inherits this disease from his mother…

Q: How is it possible for a baby to have type O blood if neither parent is type O?

A: Human genetics cannot be studied like plants and animals. This is mainly because of the absence of…

Q: Which one of the following disease is Inheritable?   A.  LeukaemiaB.  Colour blindnessC.…

A: The transmission of sex traits from parents to offsprings is called sex-linked inheritance. In…

Q: Hereditary hemochromatosis is an autosomal recessive genetic disorder that causes the body to absorb…

A: Mutations are alterations in the DNA sequence of an organism. Small changes, such as adding or…

Q: The likelihood that a son of a patient with severe hemophilia A will have hemophilia is

A: Hemophilia There are three types of hemophilia. Hemophilia A: It is caused by clotting factor VIII…

Q: What is G1 (first gap) phase.

A: The cell division process is required in the body for a wide variety of purposes like Growth,…

Q: A man with type B blood starts a family with a woman  having type A blood. The woman's parents both…

A: Blood group of an individual is represented by presence or absence of antigen and Antibody on RBC…

Q: If Zoe who has type B blood marries Steve who has type AB blood, what percent of their children…

A: Human blood grouping is genetically co dominant in nature , determines by three genes I A ,IB ,Io .…

Q: A man inherits Duchenne muscular dystrophy, which is a recessive X-linked allele.

A: X-linked recessive traits are caused by the mutations in gene present on the X chromosomes. Males…

Q: On the basis of the information provided, is the inheritance of haemophilia:   autosomal or…

A: Hemophilia is a form of clotting deficiency due to lack of clotting factor 8 and 9. Most affected…

Q: A man with type A blood has children with a women with type B blood. Their first child has type O…

A: The external appearance of an individual for any trait is called the phenotype. The genotype is the…

Q: A child has a blood type O. His mother has blood type O, and his father has blood type AB. Provide…

A: There are four types of blood group found in humans viz. O, A, B and AB.

Q: A woman with blood type B gives birth to a child with blood type B. Could a man with type A blood be…

A: The man with blood type A could be father of the child in case he is heterozygous for the blood type…

Q: Why is haemophilia will always be passed on to males

A: Haemophilia is an X linked genetic disorder where a mutation in the blood-clotting gene results in…

Q: Colour blindness is a sex linked disorder caused by a recessive allele carried on the X chromosome.…

A: color blindness is inherited as a recessive trait on the X chromosome. This is known in genetics as…

Q: Can a child have blood group O if his parents have 'A' and 'B'.explain.

A: Introduction: Blood type or blood group is a classification system defining the presence or absence…

Q: What is the chance that a man with type AB blood and a woman with type A blood whose mother is type…

A: The human blood type is determined by co-dominant alleles. An allele is one of several different…

Q: If Brittany is blood type O− and her husband is blood type AB−, what effect can the Rh factor have…

A: A protein located on the surface of red blood cells is known as the Rh factor. It is the coats the…

Q: A father has Type AB blood and the mother has Type O. What percentage of their offspring would you…

A: 50% of the offspring can have Type A blood and 50% can have Type B blood. None will have blood group…

Q: A recently married man and woman discover that eachhad an uncle with alkaptonuria (black urine…

A: Alkaptonuria also termed as black urine disease is a genetic disorder which happens rarely and is…

Q: What are the Carcinogenic effects of smoking?

A: Smoking is listed as a health degrading activity by the health organizations that puts life at a…

Q: What offspring will result from the mating of a non-carrier female and hemophilic male? O Half of…

A: Females contain two X chromosomes and males have only one X chromosome. The extra X chromosome of…

Q: Could a man with an O blood type be the father of an AB child? and why?

A: The man with blood type O cannot have a child with AB blood type.In blood types, the allele Io is…

Q: Is it possible for any sonof a couple formed by ahemophilic man (XhY) and anonhemophilic…

A: Hemophilia is an inherited genetic disorder, which impairs the ability of the body to stop bleeding…

Q: Two people with type O blood have three children. How many of those three children also have type O…

A: People with type O blood group have genotype ioio so, these both individual will have ioio genotype.…

Q: A woman with type B blood has a child with type O blood. Whatare the possible genotypes and blood…

A: According to the question, a woman is blood type B and has a child with blood type O but her…

Q: A mother with blood type B gives birth to a child with blood type B. What could not be the blood…

A: Blood types are the result of the presence or absence of and on the surface of the Individuals  red…

Q: in humans the condition for normal blood clotting dominates hemophilia these genes are x linked if a…

A: "ANSWER The sex chromosomes of the father are designated XY, with the X chromosome bearing the…

Q: If a man with type AB blood marries a woman with type O,what blood types would you expect in their…

A: Answer: Introduction: In order to determine the blood type of child, we can make assumptions about…

Q: Why do you think many women crave salt during pregnancy?

A: so many changes occur before and during and after pregnancy

Q: A man type ab blood marries a woman with type b blood whose father has type o blood. What are the…

A: Blood is a body fluid that carries necessary nutrients and oxygen to the cells and transports…

Q: Why is folic acid important during pregnancy

A: Folic acid is a manufactured form of the B vitamin folate. Folic acid could be a vitamin that's…

Q: Familial hypercholesterolemia is a genetic condition that prevents the tissues from removing…

A: Familial hypercholesterolemia is the main example for incomplete dominance. There is a generation of…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.