Ibinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal pigmentation and have one child ut of three who is albino (without melanin pigmentation). What are the genotypes of the albino's parents? One parent must be homozygous for the recessive allele; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. Both parents must be homozygous dominant. One parent must be heterozygous; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. Both parents must be heterozygous. One parent must be homozygous dominant; the other parent must be heterozygous.

Q: X‑linked, recessive diseases, such as hemophilia, are extremely rare in the population. However,…

A: X-linked recessive disorders refers to the conditions where the defective gene that causes the…

Q: Please explain why sex linked recessive traits are inherited by the son from his mother. If a mother…

A: Sex Linked Recessive Traits   The disease appears almost always in males whose mothers are…

Q: A woman homozygous dominant for albinism marries a man who is homozygous recessive for albinism.…

A: Albinism is an autosomal recessive disease. In albinism, deficiency of tyrosinase enzyme occurs due…

Q: Almond-shaped (E) eyes is dominant over round eyes. Presence of freckles (F) is also a dominant…

A: Dominant character is always expressed in heterozygous or homozygous condition where as recessive…

Q: John has unattached earlobes (dominant) like his father, but his mother has attached earlobes…

A: Let’s denoted the allele for unattached earlobes as A and allele for attached earlobes as aThe…

Q: Almond-shaped (E) eyes is dominant over round eyes. Presence of freckles (F) is also a dominant…

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

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: The allele for hitchhiker’s thumb (h) is recessive to straight thumb (H). If a man and his wife are…

A: Hitchhiker’s thumb is known to be one of the mysteries in genetics, other than it is a very rare…

Q: Blood type is an autosomal trait that shows co-dominance. A man of type AB (IAIB) blood is married…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: arts a) through c) below. ays written with the dominant gene first. Therefore, there a nd the father…

A: Sickel cell anaemia is an autosomal recessive. Nomal allele=S Sickle cell anaemia =s

Q: A boy has dimples (dominant trait of autosomal gene D) and is left-handed (recessive trait of…

A: Traits like skin,hair,eye color are determined through genes. Every gene is composed of two alleles:…

Q: Which genotype indicates a carrier of an autosomal recessive trait?   bb   BB   Bb

A: The dominant allele (represented by capital letter  'B' )  can show its character in the phenotype…

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: There are several possible modes of inheritance through which traits can be inherited. The following…

A: Pedigree is defined as the family representation for a particular trait.

Q: A blue-eyed man, whose parents were brown-eyed, marries a brown-eyed woman whose father was…

A: Autosomal dominant is a condition found specifically in heterozygotes where the mutant gene is…

Q: Mr. and Mrs. Jones have six children. Three of them have attached earlobes (recessive) like their…

A: An allele is a variant form of a given gene. Phenotype is the observed physical traits of an…

Q: Two affected daughters and two normal sons are born to an affected male and a normal female. Each of…

A: The pedigree analysis helps us identifying the mode of inheritance of a particular disease and it…

Q: A male dog is a carrier for the autosomal recessive disorders centronuclear myopathy (Y/y) and von…

A: Centronuclear myopathy and von Willebrand disease is an autosomal dominant disease and is a single…

Q: In humans, the ability to roll your tongue is an autosomal dominant trait (T); the inability to rol…

A: Law of Dominance: Out of a pair of contrasting characters present together, only one is able to…

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: Albinism is a recessive trait. Two individuals who both have normal pigmentation have one child out…

A:

Q: A form of deafness is passed on in a large family in an autosomal recessive pattern. A woman in the…

A: There is 75% probability that woman have deafness allele.

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: Color-blindness is an X-linked recessive disorder. Under what circumstances will this condition…

A:

Q: Tay-Sachs disease is a recessive genetic disease. Two individuals, both of whom are heterozygous for…

A: Inheritance is the process of transmitting genes that encode a particular trait from parents to…

Q: dominant that is 80% penetrant. Clara inherited her polydactyly from her mother, her father had no…

A: 80% penetrant means that in spite of the presence of the dominant allele still 20% people would not…

Q: Hemophilia is a recessive sex-linked trait in humans.  Sickle-cell anemia is a recessive trait on an…

A: Hemophilia is X linked recessive disorder in which blood continuously flows because of absence of…

Q: Albinism is an autosomal (not sex-linked) recessive trait. What is the probability that, out of 3…

A: Albinism is an autosomal recessive trait. Most often, the parents of an individual with an autosomal…

Q: My father is homozygous dominant (T) for tall and (B) black hair. My mother is heterozygous…

A: A trait is said to be dominant when it is present in large number of individuals of a population. A…

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: Achondroplasia, is characterized by difficulty converting cartilage to bone and thus results in…

A: Color blind is X linked recessive trait.  C = color blind c = normal XCXC = normal female  XCXc =…

Q: A man has six digits on each hand and foot (an autosomal dominant trait).  His wife and first…

A: A condition in which an individual has more than 5 digits is known as polydactyly. Polydactyly is an…

Q: Hemophilia is a recessive sex-linked disorder (Xh). A man with hemophilia and a female carrier are…

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

Q: Albinism is an autosomal recessive disorder. If a non-carrier normal male mates with an albino…

A: Given: Albinism is an autosomal recessive disorder. Let, Normal person (not having albino) - AA…

Q: People with  recessive disorders are usually born to normal parents who are both heterozygotes which…

A: The recessive disorder occurs when two mutated genes are inherited from each parent to their child.

Q: Albinism is inherited through a recessive allele (a). Juan has normal skin color. His Mom and Dad…

A: Genotype means the alleles constituting the genetic composition and responsible for the expressing…

Q: Assume for a moment that a child has a autosomal recessive disorder, but both parents appear normal.…

A: The autosomal recessive is one of the ways to pass down the trait into generations or families. 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…

Q: Piebaldism is a skin condition that causes an infant to be born with white birthmarks due to a…

A: It is an autosomal dominant genetic disorder. It is mainly due to the absence of melanocytes of the…

Q: What is the relationship between individual I-1 and individual III-2? Incidence of Hemophilia…

A: Introduction Haemophilia Is A Hereditary Condition That Affects The Body's Capacity To Form Blood…

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.