A healthy couple had their first child affected by cystic fibrosis. Their next three sons were not affected by this disorder. The couple is expecting another child and wishes to know the probability (odds) that this child will be: Not affected if the three brothers are homozygous dominant. Not affected if three unaffected brothers were determined by DNA typing to be carriers. Not affected if she (he) has one affected and five unaffected sisters. Draw pedigree of the family described in c.

Q: Red-green colour blindness is a sex-linked trait. Red-green colour blindness (Xrg) is the inability…

A: Color blindness occurs when you are unable to see colors in a normal way. It is also known as color…

Q: Hemophilia affects men much more than women. However, some women can be affected. The hemophilia…

A: Haemophilia is X linked recessive disease.  It is abnormal bleeding  disorder in which blood doesn't…

Q: Jessie and Joe are both carriers of the sickle cell trait which causes sickle cell disease when…

A: Sickle cell anemia is one of the genetic disorders known as sickle cell disease. It affects the…

Q: A couple is both heterozygous for the autosomal recessive disease cystic fibrosis (CF). What is the…

A: Autosomal recessive inheritance pattern is a type of inheritance pattern in which the disease is…

Q: Please use instructions from above Hemophilia is an x-linked disease of the blood. What is the…

A: Hemophilia is a genetic bleeding disorder in which blood doesn't clot normally. It runs in the…

Q: Red-green color blindness is an X-linked recessive disorder.  If Allison is heterozygous (a…

A: Introduction: Color blindness is an inherited sex-linked disorder that affects the  ability of…

Q: Dimples (D) are a dominant trait genetic trait.  Complete a Punnett  Square to determine the…

A: Answer: HOMOZYGOUS = when same alleles are present. HETEROZYGOUS = When two different alleles are…

Q: A child is heterozygous for blood type A whose father is homozygous dominant for the same blood…

A: Introduction  Genotype for Blood group A -  Either lAlA (homogygous)  or,  lAlo  (heterozygous)…

Q: An unaffected woman for a human disorder marries and unaffected man and they have children. This…

A: Square: MaleCircle: FemaleShaded: Affected with the disorderUnshaded: UnaffectedBoth parents in the…

Q: Inigo Montoya is healthy but his mother had the recessive condition, cystic fibrosis, which is…

A: Cystic fibrosis is a disease that is inherited in an autosomal recessive manner. An affected…

Q: Red-green colour blindness is a sex-linked trait. Red-green colour blindness (Xrg) is the inability…

A: Answer: X-LINKED RECESSIVE DISORDER : These are the disorders which are transferred from affected…

Q: What is the probability that Mike is carrier? 1/6 1/4 1/3

A: A change in the DNA sequence of an organism leads to a genetic disorder. Many factors are…

Q: Mary and Dai both have freckles (a dominant trait). Their first child, Mariko, does not have…

A: Genetics is the study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: In humans, hemophilia is a sex-linked recessive disease, and the gene is located on the X…

A: Answer: HEMOPHILIA = It is the chromosomal disorder , which sex-linked recessive disease, men are…

Q: The male is heterozygous for Huntington’s disease and homozygous dominant for Tay-Sachs. The female…

A: Male = Hh TT Female = hh Tt

Q: A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal…

A: 50 percent chances.

Q: Given the situation: both parents are heterozygous for cystic fibrosis, what is the probability of…

A: Cystic fibrosis is an autosomal recessive disease. This means if both the recessive copies of the…

Q: Considering a common autosomal recessive trait: (Read each statement carefully. Select all of the…

A: Autosomal recessive: In this type the gene or condition is recessive type which means expressed in…

Q: a normal male marries a female that is a carrier for color blindness. they have five children - a…

A:

Q: A woman who is a carrier for red-green colorblindness marries a man who is colorblind. If they have…

A:

Q: Identify the specific mode of inheritance. Gene C codes for colored feathers in chickens. A cross…

A: Inheritance parents can be categorized into four main types, autosomal dominant, autosomal…

Q: Mark has an autosomal recessive condition called sickle cell anemia, a serious blood disorder that…

A: Sickle cell anemia is an autosomal recessive disorder which ne it can only expression if present in…

Q: Bryan has albinism, an autosomal recessive trait, which means he is homozygous recessive for…

A: Ans: Albainism is an autosomal recessive disorder. For this disease to develop two copies of an…

Q: There is a couple, the blood type of a male is A+ and the female is o+. What are all the possible…

A: Blood group A contains the alleles IAIA or IAi ,i.e. male will have these alleles Female having O…

Q: A man is heterozygous for dimples (Dd) and a carrier for PKU( Pp )disease. He marries a woman who is…

A: Introduction :-  Genotype refers to the genetic makeup of an organism. Genotype describes an…

Q: A couple each with blood type AB and normal pigmentation have a child with AB blood type and…

A: Given: A couple each with blood type AB and normal pigmentation have a child with AB blood type and…

Q: Albinism is an autosomal recessive condition characterized by absence of melanin pigment from the…

A: Albinism is a group of genetic disorders characterized by a lack of melanin, the pigment that gives…

Q: Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele…

A: Hemophilia It is an X-linked recessive disorder. XH - allele for normal blood clotting is dominant.…

Q: Red-green colour blindness is a sex-linked trait. Red-green colour blindness (Xrg) is the inability…

A: A structure of colorblindness in which red and green are saw as indistinguishable. This is the most…

Q: A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal…

A: The father is a haemophiliac given by recessive genotype Xh Y , The daughter of this person is…

Q: type B woman is the daughter of a type O father and type B mother. If she has children with a type O…

A: The four main blood types (groups) are A, B, AB, and O. The genes you inherited from your parents…

Q: Tightly curled hair is caused by a dominant autosomal gene in humans. If a heterozygous curly-haired…

A: The major traits of Autosomal inheritance is : trait should not skip generations as well as the…

Q: Red-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier),…

A: The X-linked genes show a different pattern of inheritance in males and females. The male progeny…

Q: Draw the following pedigree and identify the mode of inheritance (only identify by shading…

A: Pedigree is a diagrammatic representation of individual in a family for a particular trait.

Q: Red-green colour blindness is a sex-linked trait. Red-green colour blindness (Xrg) is the inability…

A: Given: Red-green color blindness is a sex-linked trait. Red-green colour blindness (Xrg) is the…

Q: Cystic Fibrosis is an autosomal recessive disorder. A couple are both carriers of the recessive…

A: Cystic fibrosis is an inherited illness which affects the lungs and digestive system. The body…

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.