*8.13 Mr. and Mrs. Lambert have not yet been able to produce a viable child. They have had two miscarriages and one severely defective child who died soon after birth. Studies of banded chromosomes of father, mother, and child showed that all chromosomes were normal except for pair number-6. The number 6 chromosomes of mother, father, and child are shown in the following figure:

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XXYY…

A: The male-determining gene in humans is termed as the sex determining region Y (SRY) gene. Generally…

Q: . In yellow fever mosquitos (Aedes aegypti) 2n=6. In a mosquito cell that is going through mitosis,…

A: Meiosis is the cell division process that results in the formation of egg and sperm cells. Mitosis…

Q: What are the designations of the sex chromosomes in males of bugs, humans, and butterflies?

A: Chromosomal determination of sex It is also known as allosomic determinati9on of sex and is based on…

Q: Mules result from a cross between a horse (2 n = 64) and a donkey (2 n = 62), have 63 chromosomes,…

A: Meiosis is the process through which gametes are formed. It includes a reduction in the number of…

Q: A young couple is planning to have children. Knowing that there have been a substantial number of…

A: Robertsonian translocations are defines as the structural chromosomal abnormalities that is caused…

Q: What condition results from the fusion of a normal gamete (n) and a gamete missing a chromosome (n –…

A: Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly…

Q: Though an individual with abberations such as Robertsonian translocation may be phenotypically…

A: Meiosis is defined as a process where a single cell will divide twice to generate four cells that…

Q: What effects of heterozygosity for a deletion?

A: In a spontaneous deletion, 2 chromosomes break to remove the intervening segments. By deletion 1 or…

Q: At the end of Meiosis II in human cells (specifically in males, for example), how many gametes are…

A: In a normal cell there are 46 chromosomes that is 23 pairs of chromosomes are there out of which one…

Q: Two phenotypically normal parents produce a phenotypicallyabnormal child in which chromosome 5 is…

A: The thread-like structure present inside the nucleus is called a chromosome. The chromosome is…

Q: In general, why do changes in chromosome structure or numbertend to affect an individual’s…

A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman.…

A: Synapsis  It is the pairing of two homologous chromosomes during early stage of meiosis.

Q: A wild-type chromosome has the following segments: A B C • D E F G H I Researchers have found…

A: They coil under the light microscope during prophase I and become shorter and thicker and more…

Q: boy with Klinefelter syndrome (47,XXY) is born to a mother who  is  phenotypically  normal  and  a…

A: Klinefelter syndrome is a rare disorder that is caused in males alone. It is due to the presence of…

Q: A phenotypically abnormal individual has a phenotypically normalfather with an inversion on one copy…

A:

Q: The following diagram represents two nonhomologous chromosomes: A B • C D E F G R S • T U V W X What…

A: There are four types of chromosomal mutations: deletion, duplication, inversion and translocation.…

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: Consider Cyclic Crossover on two Parent chromosomes: Parent1 = A0846172593B and Parent2 =…

A: The child chromosome will be... chromosome no 1 is... A94B5721608A chromosome no 2 is...…

Q: An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B…

A: Translocation is defined as transfer of chromosomal segments from one to another chromosome.…

Q: Which, if any, of the following sex-chromosome aneuploids in humans are fertile: XXX, XXY, XYY, XO?

A: Aneuploids are a kind of chromosomal mutations which results in abnormal number of chromosomes.

Q: A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman. a.…

A: The condition is termed Robertsonian translocation.  Explanation: Every individual has his / her…

Q: When analyzing a normal human male karyotype, all of the chromosomes can be sorted into homologous…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: 14 13 1a 131 is a diagram of chromosome 17.

A: A chromosome is a long DNA molecule that contains part or all of an organism's genetic material.…

Q: Crossing-over is all of the following EXCEPT

A: The exchange of genetic material between non-sister chromatids of homologous chromosomes is called…

Q: crossing over within a pericentric inversion produces chromosomes that have extra copies of some…

A: Chromosomes having extra copies or no copies of genes are produced by crossing over within a…

Q: describe the Idiogram of the human X chromosome

A: Chromosomes are the form of genetic material and they are coiled structures composed of DNA and…

Q: Show via a diagram how the product(s) of a meiotic (either I or II) nondisjunction involving the X…

A: Kilnefelter's Syndrome:  Klinefelter's syndrome is a genetic disorder in which a boy is born with an…

Q: Explain why a person with Klinefelter Syndrome (XXY) still exhibits abnormal phenotypes despite the…

A: The human sex is determined at the time of fertilization in the fallopian tube of the female…

Q: 10 11 Study the pedigree diagram of a sex- linked trait above and answer the following questions:…

A: Genotype of individual 5 is - b - X^RX^r Genotype of individual 3 is - b- X^rY Genotype of…

Q: What is the total number of chromosomes you receive from both parents?

A: Alleles are considered as the variant of the gene. DNA is composed of different nucleotides that…

Q: An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B •…

A: In a reciprocal translocation, two broken pieces are joined together which are non-homologous to…

Q: A wild-type chromosome has the following segments: A B C • D E F G H I Researchers have found…

A: Chromosomal aberrations are changes in the number and arrangement of genes in the chromosomes. They…

Q: Non-disjunction of chromosome 21 during meiosis one followed by fertilization can result in all of…

A: An zygote with nondisjunction has 3 duplicates of chromosome 21 rather than the usual two. A pair of…

Q: Chorionic villus sampling is a procedure to determine if there are any abnormalities in chromosome…

A: Chorionic villus sampling is also used for the same purpose. Chorion is basically a membrane that…

Q: Autosomal homologous chromosomes   a. are joined at the centromere b. are the same size but…

A: Autosomal chromosomes  These are any chromosomes but not sex chromosomes. They contain gene for body…

Q: What is inversion heterozygote?

A: Inversion is a chromosomal rearrangement when a segment of chromosome breaks and then rejoins in…

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XXY with…

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

Q: The following diagram represents two nonhomologous chromosomes: A B • C D E F G R S • T U V W X What…

A: A mutation is an alteration or a change in the nucleotide sequence of DNA or RNA. Genetic…

Q: What are the possible gametes from the following individual and in what proportions would each…

A: Gametes are formed through meiosis which is a reduction division, in which a germ cell undergoes two…

Q: In keeping with the style of Table 17-1, what would youcall organisms that are MM N OO; MM NN OO;…

A: The basic structural and functional units is usually defined as the way that they are been stated…

Q: For the following chromosome complements, what is the phenotypic sex of a person who has Q. XY with…

A: The male sex-determining gene in humans is termed as the sex determining region Y (SRY) gene.…

Q: What is the law of the superposition?

A: Answer - The law of superposition is a law of stratigraphy science

Q: what are Lethal effects of homozygosity for a deletion

A: Lethality is associated with the deletion. Deletion is a type of chromosomal rearrangement that…

Q: How does nondisjunction lead to abnormalities in chromosome number? Describe two types of genetic…

A: The failure of chromosome to seperate properly  during mitosis or meiosis is called nondisjunction…

Q: What type of nondisjunction is the chromosome abnormality? Trisomy Or Monosomy

A: Trisomy: when one chromosome is present in 3 copies then the condition is called trisomy. The total…

Q: The karyotypes shown here depict chromosomal abnormalities. Name the syndromes and if they are male…

A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA,…

Q: there are 9 chromosome pairs, how many univalents are there at anaphase I on each pole?

A: Anaohase 1 is the  stage of meiotic first division in which the paired chromosome separates and move…

Q: Given that a human normally contains 46 chromosomes, give the chromosome number for each of the…

A: DNA molecule is the genetic material present in the animals. Genetic material  is present in the…

Q: What are the four types of chromosomal rearrangements?

A: Chromosomal rearrangements are the mutations in the chromosomes that alter the structures of…

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.