What is the chance the parents would have a color-blind boy? A color-blind girl? What about a girl or boy with normal vision? Redo the Punnett square for a carrier mother (XBXb) and a color-blind father (XbY). Do the chances of having color-blind children change? How?

Q: A mother who is heterozygous for Huntington’s disease (child from mother in #8) and a father who is…

A: Huntington’s disease is an autosomal dominant diseases which means that single copy of a defective…

Q: A man and both his parents are affected with a disease. His older brother is unaffected. This man…

A: The genes are the primary unit of life. The nucleotide sequence of the genes are responsible for…

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

A: Pedigree analysis involves the representation of a chart which shows the inheritance pattern of a…

Q: If a man with dark skin whose genotype is AaBB reproduces with a woman who has light skin (aaBb),…

A: Skin colour in human beings is an example of polygenic inheritance as it is controlled by multiple…

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: Recessive alleles may be expressed in a child if they are inherited ... (Choose all that apply)…

A: X-linked Recessive diseases are those genetic diseases that are caused by the mutation of genes on…

Q: Both red/green color blindness (R=normal, r=colorblind) and Duchenne-type muscular dystrophy…

A: X-linked recessive inheritance is the genetic condition that can be passed from parent to child…

Q: If a trait is X-linked dominant, who would express the trait? A) females homozygous for the dominant…

A: X-linked dominant inheritance is a mode of genetic inheritance by which a dominant gene is carried…

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

A: Homozygous is the condition in which an offspring inherits the same alleles for a specific gene from…

Q: A woman is heterozygous for the gene that causes cystic fibrosis, an autosomal recessive disorder.…

A: A series of event that occurs in a cell to make it ready for the division is the cell cycle.  There…

Q: In humans, the ABO blood type is under the control of autosomal multiple alleles. Color blindness is…

A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…

Q: The bald phenotype which is due to a dominant autosomal gene the expression of which is sex…

A: Sex influenced trait are the traits that are controlled by sex chromosome but are exhibited on the…

Q: We know that the most common form of color blindness results from an X linked recessive gene. A…

A: Colour blindness is an X linked recessive disorder.

Q: Colorblindness is inherited as an X-linked recessive trait while pattern baldness is controlled by…

A: Colourblindness is X linked recessive condition in which recessive allele h is present on X…

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

A: 50 percent chances.

Q: Which of the following genotype(s) must a female child have in order to be color blind?  XNXN…

A: Colorblindness is a X-linked recessive disorder which doesn't allow the individual to differentiate…

Q: Two parents who do not have color blindness have a daughter who has only one X chromosome and is…

A: The event of nondisjunction occurs when the chromosomes fail to separate during the process of…

Q: Consider the following phenotype for hemophilia, a recessive X-linked blood clotting disorder, in…

A: A gene is a unit of genetic material present within the DNA (deoxyribonucleic acid). Each gene…

Q: A type of red-green colorblindness is inherited recessively on the X chromosome. A woman   who is…

A: Color blindness is sex-linked recessive disorder. A person is said to be color blind if he is not…

Q: In a testcross, the parent that is homozygous recessive for the genes being studied is called the…

A: ANSWER;-c)option C is correct. Explain;- A test cross is to test the genotype of an unknown sample…

Q: In the human pedigree shown below, black filled symbols indicate individuals suffering from a rare…

A: The pedigree is a family tree diagram that depicts the inheritance pattern in a family. The female…

Q: An X-linked gene in man is for the disorder haemophilia. This is a recessive trait. Given that a…

A: Haemophilia is an X-linked inherited disease. Haemophilia gene is recessive and expressed only when…

Q: In X-Linked Dominant disorder, a gene responsible for a genetic disorder is located on the X…

A: X-linked dominant inheritance is the genetic conditions associated with mutations in genes on the X…

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

A: Red-green color blindness is an X-linked recessive trait it can be depicted as X^c. Polydactyly is…

Q: Albinism is a recessive disorder where there is a lack of melanin. Andrea and her husband Claude…

A: Given information Albinism is a recessive disorder.  Andrea and Claude both have normal skin…

Q: Hemophilia is an X-linked recessive gene. A normal woman who is a carrier for hemophilia marries a…

A: Hemophilia is a disorder in which blood can’t clot properly, excessive bleeding (external and…

Q: In humans, brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and…

A: Brown eyes (B) = Dominant  Blue eye (b)= Recessive

Q: If body-color B is dominant to green body color b what would the genotype be for a heterozygous…

A: It is given that the body color blue is dominant and is represented by B whereas the body color…

Q: When looking at an X-linked recessive trait, if an affected mother and an unaffected father have a…

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

Q: A woman with blonde hair and blues eyes, which are recessive genes, marries a heterozygous man who…

A: Traits are characteristic features that are unique to particular individual . As per the question ,…

Q: brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and they have…

A: The organisms with two same alleles at a genetic locus is called as a homozygote. The organism with…

Q: Color-blindness is an X-linked, recessive trait. If a normal-sighted woman, whose father was…

A: These are the mode of inheritance in which a mutation in a gene X causes the phenotype to be always…

Q: Using just the information on this pedigree, is Huntington’s disease caused by a dominant allele or…

A: As per the honor code, we answer only three sub-parts at a time. So, we are answering the first…

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

A: The genotype is defined as a part of the genomic constitution of an organism that controls different…

Q: Anhidrotic ectodermal dysplasia is an X-linked recessive disorder in humans characterized by small…

A: Anhidrotic ectodermal dysplasia (AED) is a type of immune deficiency observed in the human body. The…

Q: The gene for black hair (B) is dominant over the recessive gene for blond hair (b). If the father is…

A: As given that the gene for black hair (B) is dominant over blonde hair recessive gene (b). It means…

Q: Hair or fur length in cats is controlled by a single, autosomal gene; the short hair-allele is…

A: Genetics is the branch of science that deals with the study of gene and their inheritance from one…

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

A: Pedigree analysis involves the representation of a chart which shows the inheritance pattern of a…

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

A: As achondroplsia is autosomal dominant disease so  AA - Disease  Aa - Disease  aa - Normal As…

Q: Which of the following statements about X-linked recessive patterns is true?   The X-linked trait…

A: An X-linked disorder is passed from a male to a female daughter. Since males have only one X…

Q: Colour blindness is caused by a sex-linked, recessive gene. If a woman, whose father was colour…

A:

Q: What are their genotypes of all of them? What is the type of inheritance observed?

A: A man being homozygous for a disease indicates having two of the same alleles for a disease. A woman…

Q: human disease known as cystic fibrosis is inherited as a recessive trait. Two unaffected individuals…

A: Cystic fibrosis  It is a autosomal recessive genetic disorder in which affected organism produce…

Q: Men have XY​ (or YX) chromosomes and women have XX chromosomes.​ X-linked recessive genetic…

A: The trait is X linked recessive in nature.  The X chromosome encodes normal phenotype. It is…

Q: In humans, as well as in many other animals and some plants, the sex of the individual is determined…

A: Haemophilia is X-linked recessive disorder. It is generally caused by a mutation in the genes which…

Q: Cystic fibrosis is a genetic disease that causes an abnormal production of mucus which in turn can…

A: Cystic fibrosis (CF) is a disease caused by a mutation in a protein in the body. Cystic fibrosis is…

Q: In humans, the gene for albinism (a) is recessive to the gene for normal skin pigmentation (A).…

A: An allele is a variant form a gene and is present in two forms: dominant and recessive. The dominant…

Q: In humans, brown eyes (B) are dominant over blue (b)*. A brown-eyed man marries a blue-eyed woman…

A: Punnet square isbgiven by Reginald C. Punnet. Here, the gametes and offpsrings are denoted in a…

Q: For the Y-linked gene, use T for hypertrichosis. For X-linked genes, use the letters H for blood…

A: Given: For the Y-linked gene, Hypertrichosis (T) For X-linked gene, Blood trait (H), and eye trait…

Q: Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal…

A: Syndactyly is an autosomal dominant condition.

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.