ultrasound of a pregnant woman detects a fetus and a similarly sized and shaped structure that has disorganized remnants of facial features at one end. Amniocentesis reveals that the fetus is 46,XX, but cells of the other structure are 47,XX,trisomy 2. No cases of trisomy 2 infants have ever

Q: Trisomy 21, or Down syndrome, occurs when there is a normal diploid chromosomal complement but one…

A: Down's syndrome occurs due to an error at the time of gamete formation. As a result the gametes may…

Q: Number of chromosomes in the individual's body cells Cell division error that resulted in trisomy 18…

A: INTRODUCTION A karyotype is a collection of a species' or an individual organism's full set of…

Q: What is chromosomal theory of inheritance? List the ways in which genes and chromosomes behave…

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

Q: Explain the causes of familial Down syndrome.  How does it differ from Down syndrome due to…

A: Down syndrome is a disorder in which individuals have an extra copy of chromosome 21 instead of two…

Q: An unaffected man and an unaffected woman mate and have a son affected with Kakamania. Which of the…

A: Answer: Chromosomal Inheritance is the process of transferring the genetic information from parents…

Q: In a diploid organism of genotype A/a; B/b: D/d, the allele pairs are all on different chromosome…

A: Anaphase comes after the process of metaphase. In this stage of cell division, chromosomes which are…

Q: which genetic disorder matches below descriptions. extra 21st chromosome attaches to chromosome 14.…

A: Genetic disorder is defined as the disease caused by the abnormality in the genome of an organism.…

Q: 1. How many types of twins do exist? 2. What are "semi-identical" twins, and why are they so rare?…

A: When two sperm fertilized a single egg that split into two, then the twins are called semi-identical…

Q: Give the phenotypic effects and chromosomal aberrations of the following syndromes/disorders: Down…

A: DOWN SYNDROME. Down syndrome is the most common chromosomal disorder due to the autosomal trisomy of…

Q: age Individuals who carry stable pericentric inversions are typically phenotypically normal, but…

A: A pericentric inversion is a kind of chromosomal rearrangement in which a portion of a chromosome is…

Q: A dominant allele, XE, carried on the X chromosome causes the formation of faulty tooth enamel,…

A: The genotype of a child is dependant on the genotype of the parents. A dominant allele can manifest…

Q: 1. If an A a Bb Ccdd male mates with an A a Bb CC DD female. (a) What is the minimum number of…

A: Introduction :- Genotype is defined as the sum of all the genes and their respective alleles , that…

Q: inheritance

A: Pedigree analysis is a crucial method used in genetics to understand the inheritance patterns of…

Q: Trisomy 21, or Down syndrome, occurs when there is a normal diploid chromosomal complement but one…

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. DNA is formed of the…

Q: 8 9 10 11 12 13 14 15 16 17 18 ir 19 20 21 22 (8) Fig. 6-3, p.123 N CITE

A: Karyotyping is a test to examine chromosomes in a sample of cells. This test can help identify…

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: A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene…

A: Given that the gene for the color-blind condition is recessive and X-linked and a color-blind woman…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: The orange coat color allele in cats is located on the X chromosome and is one of two genes…

A: The two variants of coat color found in cats are orange and black. The alleles responsible for these…

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: A women is heterozygous, Aa, for classic albinism and this gene maps to chromosome 11, and is a…

A: Oogenesis is the process of formation of female gametes called ovum or egg. The development of eggs…

Q: In humans, Cystic Fibrosis an autosomal recessive trait, currently with medicine advances people…

A: Genetic disorders or traits known as autosomal recessive traits occur when a person inherits two…

Q: What is meant by the term diploid? Which cells of the humanbody are diploid, and which cells are…

A: The ploidy term refers to the number of sets of the chromosomes. The euploidy refers to the…

Q: A man affected with Cacamania and a woman affected with Cacamania mate and have an unaffected…

A: A man affected with Cacamania and a woman affected with Cacamania mate and have an unaffected…

Q: ne, seizures, poor muscle tone, and progressive kidney failure which was ultimately fatal. His older…

A: PEDIGREE ANALYSIS Pedigree analysis is used  to comprehend how genes are passed from parents to…

Q: For an individual with the XXXYY chromosomal composition, the expected number of Barr bodies in…

A: Barr body is an inactivated X-chromosome in female cells in the interphase since they have more than…

Q: Which of the Pedigree Diagrams below is most likely to show a family with Hereditary haemorrhagic…

A: Haemorrhagic telangiectasia (HHT) is an autosomal dominant disorder which means that if one of your…

Q: Hyperphosphatemic familial tumoral calcinosis (HFTC) is a condition characterized by an increase in…

A: ANSWER;- A) . Autosomal dominant inheritance : Autosomal dominant inheritance is a way a genetic…

Q: Sex-linked or "X-linked" inheritance Using XG for the normal vision allele and X8 for the…

A: If the gene that produces the feature or condition is identified on the X chromosome, it is said to…

Q: Extranuclear inheritance can involve genes that are present in:     ribosomes   mitochondria…

A: Extra nuclear inheritance is also known as cytoplasmic inheritance. Extra nuclear inheritance is…

Q: which mode of inheritance does this trait show (autosomal recessive, autosomal dominant, X-linked…

A: The given image is of a pedigree chart. Squares represent males and circles represent females. Black…

Q: Hypophoshatemia is a dominant genetic disorder caused by deficiency of pho[hates in the blood.…

A: The pattern of inheritance in question involves a genetic disorder related to phosphate deficiency…

Q: 3 5 富 10 11 12 13 14 15 16 17 18 19 20 x Y 21 22

A: A karyotype is defined as the organization of the chromosome content of any given cell type. Thus,…

Q: A 43-year-old (gravida 2, para 2) pregnant woman requests chorionic villus sampling (CVS) and a…

A: The correct answer is b. Klinefelter syndrome is a diagnosis for a boy with mild to moderate…

Q: Consider the pedigree below for the hairy toes trait, denoted with the gene symbols H and h (if…

A: A pedigree is a representation of the inheritance of a trait or character or disease from one…

Q: Discuss and differentiate: Trisomy 13 Trisomy 18 Trisomy 21 Turner syndrome Klinefelter syndrome

A: Answers All these diseases are genetic disorders. Trisomy 13(2n+1) Also known as Patau syndrome,…

Q: maternal inheritance,

A: Transfer of mitochondrial DNA from mother to offspring, often called maternal inheritance Maternal…

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.