A geneticist discovers a male mouse with greatly enlarged testes in his laboratory colony. He suspects that this trait results from a new mutation that is either Y linked or autosomal dominant. How could he determine whether the trait is autosomal dominant or Y linked?

Q: The following pedigree represents the inheritance of an autosomal recessive disease in a certain…

A: Introduction  Pedigree Analysis: this is the new approach to study the inheritance pattern in the…

Q: Familial Down syndrome is similar to primary Down syndrome in that it is caused by trisomy 21.…

A: Two normal copies of 14, two normal copies of 21: A.Two normal copies of 21, one normal copy of 14:…

Q: According to the pedigree below, what mode of inheritance is occurring? A)Autosomal dominant…

A: It is a chart or diagram that exhibits the presence or absence of a trait that can be related to the…

Q: As discussed in the text, almost 5% of Caucasians carry a recessive gene for cystic fibrosis. Until…

A: Cystic fibrosis is an inherited disease which is characterized by formation of thick, sticky mucus…

Q: Phenylketonuria (PKU) is an autosomal recessive disease that results from a defect in an enzyme that…

A: Phenylketonuria is an inborn error of metabolism which happened due to decreased or low metabolism…

Q: Lauren reports that she had a maternal male cousin (through a maternal aunt) and a maternal great…

A: The X-linked disease is the disease inherited from any lethal mutation in genes present on…

Q: Campomelic dysplasia (CMD1) is a congenital humansyndrome featuring malformation of bone and…

A: Campomelic dysplasia is a rare genetic disorder characterized by bowing of the long bones and many…

Q: Circle all inheritance patterns that you cannot rule out to explain this pedigree. individuals…

A: A pedigree chart illustrates a family's genetic history in graphical form by demonstrating the…

Q: Amelogenesis imperfecta (AI) is a disorder of faulty tooth enamel formation. It is inherited in an…

A: The trait shown is inherited both autosomal dominant and X-linked; the presence of the dominant gene…

Q: completely dominant to the allele for straight tail for an X-linked maternal effe A) A male with a…

A: X-linked could be a attribute wherever a cistron is found on the X chromosome. Humans and…

Q: Below is a pedigree from one family (two parents and eight children). Four of the children…

A: Pedigree chart It is a diagram that represents the occurrence of phenotypes of a particular gene in…

Q: In a sample of 1000 patients with Down syndrome, a geneticist discovers that 95% of them are…

A: Trisomy is a kind of polysomy in which three instances of a particular chromosome occurs. Generally…

Q: Many genetic disorders exhibit locus heterogeneity. Define andgive two examples of locus…

A: Locus heterogeneity is a phenomenon in which a particular disease is caused by mutations in…

Q: A possible explanation for the increased incidence of Tay-Sachs disease among Ashkenazi Jews is

A: Tay Sachs is a rare autosomal recessive disorder that causes mental and physical disabilities…

Q: A pedigree lists a father as the proband for a genetic disorder that he inherited from his mother.…

A: Inherited disorders are genetic conditions that are passed down from parents to their offspring…

Q: The Klinefelter syndrome (disomy of the X chromosome in males) is a genetic disease caused by…

A: The normal humans contain 46 chromosomes. Between these 46 chromosomes, 44 are autosomes and 2 are…

Q: During the pathoanatomic inspection of a baby-boy's dead body the following abnormalities:…

A: Chromosomal disorder are the abnormalities that arises due to alterations in chromosome arrangement…

Q: Two related forms of muscular dystrophy—Duchenne muscular dystrophy (DMD) and Becker muscular…

A: Muscular dystrophies cause muscle weakness and atrophy in the skeletal muscles exclusively in males.…

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: Group of answer choices Statement 1 is correct. Statement 2 is incorrect

A: Neurofibromatosis (NF) is a neurodegenerative disease that affects the brain, spinal cord, nerves,…

Q: Pancreatic cancer is clearly inherited as an autosomal dominant trait in the family illustrated in…

A: Cancer is an uncontrolled division of cell that has a defunct apoptosis mechanism. Usually, when…

Q: Could the trait indicated in the pedigree above be caused by an autosomal gene? Hint: consider each…

A: Each gene that codes for a specific protein exists as two variants known as alleles. Alleles can…

Q: 10 cM separates two hypothetical autosomal human genes. The  dominant alleles are have complete…

A: 10 cM separates two hypothetical autosomal human genes. The dominant alleles are have complete…

Q: A genetics counselor, Nashaly Montez, notices an odd pattern in Devin’s pedigree, a propensity for…

A: Translation is a biological process that occurs in cells, during which the genetic information…

Q: man and a woman have a child with cystic fibrosis. Neither parent has cystic fibrosis. How could…

A: Cystic fibrosis is an inherited life-threatening disorder that affects the lungs and digestive…

Q: three children. What is the probability that one their children will be normal (unaffected) and two…

A: Autosomal recessive mutation leads to autosomal recessive disorder. This will occur when you…

Q: Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type…

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

Q: 22. State how many children or percent that can be normal pigmented with dwarfism (A_D_). 23. State…

A: Autosomal inheritance means the inheritance or passing of the genetic trait from parents to…

Q: An STR on chromosome 9 is immediately adjacent to a gene involved in a dominant blood disorder (only…

A: Short Tandem repeats (STR): This are short repeated DNA sequences in a human body. This accounts for…

Q: In mammals, sex-chromosome aneuploids are more common than autosomal aneuploids, but, in fishes,…

A: The abnormal number of sex chromosomes in an organism is called sex chromosome aneuploidies (SCA).…

Q: Prader-Willi Syndrome (PWS) is caused by a mutation in an autosomal gene that is maternally…

A: Given information Prader-Willi Syndrome occurs by the mutated autosomal gene that is maternally…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.