A dominant gene R and the recessive a causes retinitis pigmentosa, a form of blindness in man.  Thus only rrA_ individuals are normal.  A couple, both afflicted, have five children: four afflicted and one normal. What are the genotypes of the parents?

Q: THE MOST COMMON FORM OF ALBINISM, A TOTAL LACK OF SKIN PIGMENT, IS DUE TO A RARE RECESSIVE GENE…

A: Albinism is a genetic condition that results in a lack of melanin the pigment responsible for…

Q: Explain why Y-linked traits are passed only from fathers tosons.

A: Y chromosome in male contains SRY gene that is responsible for the development of male genitalia and…

Q: 1. Different cell types are organized into tissues. In the table below, provide one example of how…

A: * In our body the tissues are formed from each cell. It means each tissue is a constituent of each…

Q: Red-green color blindness is X-linked recessive. A woman with normal color vision has a mother who…

A: Given: Red-green color blindness is X-linked recessive. Women, mother is color blind - XhXh Woman…

Q: A male has a particular X-linked recessive genetic disorder. His partner is normal, but her father…

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

Q: uestion 3 (1 point) Suppose that a grandfather, mother, and son all have the same homozygous…

A: Non Mendelian inheritance is a mode of inheritance in which there is no dominant or recessive…

Q: How is the inheritance of X-linked traits different from the inheritance of autosomal traits? How…

A: The observable characteristics of an organism are known as phenotypes or traits. The phenotype…

Q: what is the probability that he might be a carrier of the recessive gene?

A: Cystic fibrosis is associated with the CFTR gene that encodes a protein that helps thin the mucous…

Q: In a woman who is a carrier of a mutant OTC deficiency allele, her sons who receive the mutant…

A: An alteration in the ornithine transcarbamylase (OTC) gene results in the genetic disorder known as…

Q: Father has hemophilia XY Mother is not a carrier Father does not have hemophila XY e the hemophilia…

A: HEMOPHILIA *It is a inherited genetic disorder that makes blood not to clot. * It makes the blood…

Q: What is the genotype of the following? Place the dominant (A) or recessive (a) allele on the "X"…

A: Introduction :  In a living organism, passing on various traits from one generation to the next is…

Q: A 31 year old woman consults her physicain because she is concerned about developing breast cancer.…

A: Abnormal and uncontrolled growth and proliferation of cells with a capacity to invade other healthy…

Q: The mutant FMR-1 allele that causes fragile X syndrome is considered to be X-linked dominant…

A: Fragile X syndrome is a genetic disorder. It causes various developmental disorders that include…

Q: Why must the carrier of a genetic disease be heterozygous?

A: Homozygous means a person carries two identical pair of the gene whereas heterozygous means the…

Q: 1a) Explain one autosomal pattern of Mendelian inheritance. 1b) Describe one example of a disorder…

A: 1 a) Mendelian inheritance  Mendelian inheritance is defined as the inheritance pattern, which…

Q: Given these parents-note, they are NOT quite the same as each other!: mom = Aa Bb Cc Dd dad = Aa Bb…

A: The product rule is used in this case. The multiply of each gene is done in this case.  The A gene…

Q: An individual comes into your genetics clinic to be tested for any anomalies. When looking at their…

A: Given: An individual come to your genetics clinic to be tested for any anomalies.When looking at…

Q: 1)Explain the differences between the following terms: -Gene, allele, and locus -Genotype versus…

A: Genetics In biology, the study of organism genome is known as genetics.

Q: The gene causing Coffin-Lowry syndrome (OMIM 303600) was recently identified and mapped on the human…

A: Males and females of a species have separate sex chromosomes. The number of copies of seX-linked…

Q: "a" is a recessive allele of gene "A". Individuals with "aa" genotype suffer from a disease "D". If…

A: A disease is an abnormal condition that affects the structure or function of an organism and is…

Q: Why are there so few Y-linked traits in humans?

A: The study of genetic variations, heredity, and genes is called genetics.

Q: You possess two alleles for each of your genes. (One from the paternal side and one from the…

A:

Q: a. what would be the expected chance of a XY child being affected with the disease?

A: Amelogenesis imperfecta is a rare congenital disease, where the affected…

Q: Suppose a maternal effect gene exists as a functional dominantallele and a nonfunctional recessive…

A: A dominant allele is the one which expresses itself in its homozygous as well as in heterozygous…

Q: .Certain forms of human color blindness are inherited as X-linkedrecessive traits. Hemizygous males…

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

Q: 1. Red-green colorblindness is caused by a recessive allele (X) at an X-linked gene, and albinism is…

A: The most prevalent type is red-green colour blindness, followed by blue-yellow colour blindness and…

Q: Which of the following genetic diseases is/are inherited as an X-linked recessive trait: hemophilia…

A: Introduction The passing on of traits from parents to their offspring is known as heredity, also…

Q: A human child is born with hemophilia (a condition in which the blood does not clot).  Neither…

A: Given: A human child is born with hemophilia (a condition in which the blood does not clot). Neither…

Q: Give biological term for supressed allele.

A: The presence of two alternative forms/variations is one of the defining features of a single gene…

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.