A couple can both see red (a sex-linked trait). The allele responsible for red color-blindness is recessive on the X-chromosome. The woman is a carrier for this condition. What are the likely genotypes of this couple? What is the probability of the couple having a daughter who is red colorblind

Q: Grandma Jade is affected with tuberous sclerosis, she grows benign tumors, and the trait is under…

A: A few people inherit the disorder from a parent with TSC, most cases happen as irregular cases…

Q: X-linked ichthyosis is an X-linked recessive trait that manifests in part as dry, scaly skin…

A: If one allele is missing it is hemizygous. Heterozygous is the presence of two different alleles at…

Q: normal woman (for colorblindness) and with straight hair but who has a father with curly hair and a…

A: Colour blindness is an excellent disease and straight hair are dominant to curly hair

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 man, Penoy, whose sister died in early childhood from a recessive lethal disease marries a woman…

A: In the given scenario, as the male survived beyond childhood but is a carrier of the disease, it…

Q: Red–green color blindness is an X-linked recessive trait. Susan has normal color vision, but her…

A: Color blindness is defined as the inability of the person to distinguish between colors, especially…

Q: For a recessive condition, two normal heterozygous individuals have children. What is the…

A: Suppose the allele affected in the condition is a.Normal:- AA Carrier:- Aa Diseased:- aa When Aa X…

Q: Julie (a female) has hemophilia. Based on this information, what can we say about the genotypes of…

A: Introduction X-linked diseases are those that occur due to the presence of abnormal/ diseased…

Q: Geneticists are concerned about three different genetic conditions present within their family.…

A: Autosomal dominant A = achondroplasia  a = average height  AA and Aa = affected aa = normal    X…

Q: A husband and wife have normal vision, although both of the couple's fathers are red-green…

A: Genes control the genetic characteristics of an organism.  Genotype is the genetic characteristics…

Q: Red-green color blindness in humans is due to an X- linked recessive gene. thin

A: Red-green color blindness is the most common variety of color deficiency in humans. It happens to…

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

A: Since, the disorder is sex linked recessive, we have,  Genotype of affected female - XDXD Genotype…

Q: A man with X-linked color blindness marries a woman with no history of color blindness in her…

A: Genetics is the branch of biology that deals with genetic material like DNA, RNA, inheritance.…

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

A:

Q: A WOMAN IS HETEROZYGOUS FOR TWO HARMFUL RECESSIVE ALLELES IN DIFFERENT CHROMOSOMES, ONE FOR…

A: Autosomal recessive traits refers to the pattern of inheritance in which both the mutated alleles of…

Q: In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. The…

A: Hemophilia is an inherited condition of bleeding. Children with haemophilia cannot stop bleeding…

Q: Albinism and sickle cell anemia are both autosomal recessive disorders that are expressed only in…

A: Albinism - genotype be A and a.  aa is diseased, Aa is the carrier and AA is not affected.  Sickle…

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

A: ANSWER;- The probability that she is heterozygous for both genesis 100%

Q: A woman and a man have a red-green colorblind daughter. What can you say about the genotypes of the…

A: Color blindness, particularly red-green color blindness, is a sex-linked recessive genetic trait.

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: Sickle cell anemia is inherited as an autosomal recessive condition. It also exhibits incomplete…

A: Sickle cell anemia (SCA) is a genetic disorder that occurs when an individual has two homozygous…

Q: A woman is color blind (an X-linked, recessive trait).  What are the chances that her sons will be…

A: Given that color blindness is a X linked recessive trait.  X-linked alleles require a specific…

Q: A woman is homozygous dominant for short fingers. She marries a man who is heterozygous for short…

A: A Punnett square is a graphical representation used to predict the possible genotypes of offspring…

Q: A man with hemophilia (a recessive, sex-linkedcondition) has a daughter without the condition.She…

A: An example of the sex-linked recessive disorder is Haemophilia. It is due to the abnormal X…

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

A: X-linked traits have a different way of inheritance than autosomal traits. In Heliodors, the XX…

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

A: Husband colorblind XcY Wife carrier XCXc Husnand and wife both are achondroplasia.   Father's…

Q: A healthy couple had their first child affected by cystic fibrosis. Their next three sons were not…

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

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.