A woman afflicted with a certain illness marries a normal man. They have four children (two boys and two girls); all boys have their mother's illness, but none of the girls have it. See individuals outline by blue square in the family tree below which indicates these individuals. Their children marry and have children of their own. Their family tree is shown below. What inheritance is it suggested?  Give an explanation for your answer. Determine the genotype of all individuals seen the family tree above (use table below

Q: Persons with sickle cell anemia have a mutation in the hemoglobin gene. This trait is produced by…

A: Sickle Cell anaemia is a genetic disorder caused by a defective allele on chromosome 11 which…

Q: Explain how the process of nondisjunction can result in an individual with Klinefelter syndrome.…

A: When sister chromatids are unable to correctly split during meiosis, nondisjunction results.…

Q: What percent of the offspring will be homozygous recessive?

A: Punnett square: It is the diagram used by the biologist to find out the genotype probability of an…

Q: A man and woman are both heterozygous for an autosomal recessive disease allele. They would like to…

A: Autosomal recessive disease refers to a genetic disorder that occurs when an individual inherits two…

Q: A person with sickle-cell anemia marries a healthy person without sickle cell anemia.  They have a…

A: Sickle cell anemia is a red blood disorders where the mutation caused some of the RBC to have sickle…

Q: Jim and Pam would like to have a baby, but they know that albinism (an autosomal recessive disease)…

A: Albinism is a rare group of genetic disorders that cause the skin, hair, or eyes to have little or…

Q: Wilson's disease is an inherited disorder caused by a mutation in the ATP7B gene. Individuals…

A: From the given pedigreees we can identify the mode of inheritance of Wilson's disease. In both…

Q: One form of familial hypercholesterolemia (FH) shows incomplete dominance.  Homozygous dominant…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Considering a common autosomal recessive trait: (Read each statement carefully. Select all of the…

A: Autosomal recessive: In this type the gene or condition is recessive type which means expressed in…

Q: Explain multiple Alleles using Human Blood Groups as an example.

A: Each gene, according to Gregor Mendel, should contain only two alleles. Alleles are gene variants…

Q: A man with red-green color-blindness (a recessive, sex-linked condition) has a daughter of normal…

A: Color blindness in the red-green spectrum. A person with red-green colour blindness is unable to…

Q: Select the correct mode of inheritance corresponding to this information: Females with AA or Aa…

A: Basic introduction about disease heredityAutosomal disease In this case, autosomes (except X & Y…

Q: Consult Figure 3. This pedigree illustrates the inheritance of Charcot Marie Tooth disease, which is…

A: Charcot Marie Tooth is a sex-linked dominant disorder. It is a neuromuscular disorder that damages…

Q: The Ankura race of Gunguns on the planet Naboo have a an inherited genetic disorder which results in…

A: The genotype of an organism with two identical alleles at a locus is referred to as homozygous. The…

Q: Attached earlobes is recessive while “Free” earlobes is dominant. Determine the phenotypes for both…

A: Let the dominant allele for free earlobes be = Eand the recessive allele for attached earlobes be e…

Q: A newly described rare and potentially fatal condition causes heart rate to be unusually low in…

A: A pedigree is a family tree or chart made of symbols and lines that represent a person's genetic…

Q: One of the people on the chart is labeled with the letter A. Which of the following statements…

A: The genes located on the nuclear chromosomes obey the Mendelian law of inheritance. In the human…

Q: This pedigree (below) shows inheritance of a genetic disorder in a family. Assume the trait is rare.…

A: Gene is the segment of DNA responsible for heredity. Two or more alternative forms of genes…

Q: Dimples are dominant over no dimples. A mother that does not have dimples marries a man. Together…

A: Given that: Dimples are dominant over no dimples. Let us assume that D codes for dimples and d codes…

Q: Calculate the probability of inheriting a particular genetic disorder by using a Punnett square.

A: Introduction Chance events are generally characterized by probability. Probability is defined as the…

Q: For an individual expressing the dominant phenotype, explain why you must list two possible…

A: Dominant phenotypes are observable traits or characteristics that are expressed when an individual…

Q: Consider the inheritance of blood types in humans. (Read each statement carefully. Select all of the…

A: It was reported by Karl landsteiner. It is based on the presence or absence of antigen A or antigen…

Q: Albinism is the absence of pigment throughout the body. Animals with albinism have white fur and…

A: The children so produced from parents with albinism will surely have albinism.Probability of…

Q: Sickle cell anemia is a genetic disease that causes red blood cells to form incorrectly, slowing the…

A: People with sickle cell disease (SCD) begin to show symptoms during their first year of life,…

Q: The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the…

A: X-linked recessive traits are those inherited through sex chromosome X and expressed on homozygous…

Q: A normal woman has a father who has red-green colour blindness. She had a child with a man who does…

A: Correct answer: (c) 0.25 Color blindness is a X- linked recessive disorder When we cross a normal…

Q: Two brown-eyed parents produce a blue-eyed child. Grandparents suspect infidelity on the part of the…

A: The link between the two phenotypes based on the F1 and F2 phenotypes was described by Mendel using…

Q: Use the following parents to create a Punnet Square and answer the question.  Cross a homozygous…

A: Genes are made of nucleic acids called DNA. The variant forms of genes are called alleles. The…

Q: One form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has…

A: Color blindness is a deficiency of color vision and the individual with color blindness have…

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.