Tay-Sachs disease is a fatal genetic disorder caused by a recessive allele.  The pedigree chart below shows the appears of the disease in three generations of a family.  Tell the genotype or possible genotypes of each member of the family.  Be sure to define your variables.

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: Draw a Punnett square for a cross between heterozygous purple flowers and homozygous white flowers.

A: As purple flower colour (P) is dominant to white flower colour (p). So, PP = Homozygous dominant,…

Q: Which statement is NOT true? Select an answer and submit. For keyboard navigation, use the up/down…

A: Alleles are the different forms of the same gene.

Q: Use a punnett square to calculate the following:   George is the youngest child in a family that…

A: The DNA is the hereditary unit of an organism. The genes are composed of DNA  which is passed on…

Q: Provide the genotypes for individuals who are homozygous dominant, heterozygous, and homozygous…

A:

Q: Make Your Own Pedigree       First, choose a trait that you would like to investigate. It should be…

A: The feature of cleft chin is an autosomal dominant trait.  When the family is examined for the the…

Q: A man with Type AB blood is married to a woman with Type O blood. They have 2 natural children and…

A: There are 4 different types of human blood groups: A B AB O

Q: individuals in a given family have attached earlobes. Unattached earlobes are dominant over attached…

A: As unattached earlobes are dominant over attached, so attached earlobes have homozygous trait to…

Q: In this pedigree: • The first tier (generation) are parents • The second tier (generation) are…

A: The pedigree is showing autosomal dominant trait because the trait is present in all the…

Q: Albinism is a recessive genetic condition in which a person lacks pigment that gives color to the…

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

Q: In a Mendelian monohybrid cross with dominance, which answer represents the convention used to…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: Genotype: Is the letters we use to represent the trait on the chromosome (Examples: TT, Tt, tt)…

A: Here, Y = Dominant allele  and  y = recessive allele YY= homozygous dominant yellow  Yy=…

Q: Which blood allele is recessive?     A     B     AB     O

A: In 1901, Austrian immunologist Karl Landsteiner discovered the A, B, and O blood groups (ABO blood…

Q: This is the pedigree of a family, some of whom exhibit the dominant W trait.  What is the likelihood…

A: The mode of inheritance is a pattern of obtaining parentral alleles  or genes to the offsprings. The…

Q: A gene with 2 sets of dominant genotype is a ____________ breed

A: Gene is the sequence of nucleotide in DNA which code for a protein.

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: (Recessive Sex-linked Trait) A family has four children, two girls and two boys. One girl and one…

A: Color vision disorder is normally inherited by one's parents and is present from birth, though it…

Q: Give an example of a family tree that shows the F^1 generation and F^2 generations of your mother…

A: The family tree is used to identify the genetic disorders which are inherited from one generation to…

Q: This pedigree shows the inheritance pattern of hitchhiker's thumb in several generations of a…

A: Option b is correct Jim's parents do not express the trait.

Q: The following questions refer to the pedigree chart in the figure below for a family, some of whose…

A: This is an autosomal dominant trait. Since, it is present in all individuals, hence, dominant and…

Q: Give an example of a family tree that shows the F^1 generation and F^2 generations of your mother…

A: The family tree is also known as pedigree analysis and it was done mainly to identify genetic…

Q: Draw a pedigree chart for the family described below and use the chart to determine the genotype or…

A: Pedigree is a family chart drown by genetic councillor by the use of some symbols to determine a…

Q: by clicking on and putting the correct capital and lowercase letters in the b. In dogs, brown color…

A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…

Q: Imagine you have a blood group of "X" which is recessive and expressed by xx. The dominant blood…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

Q: The pedigree below shows the blood types of the Jones family. Review the pedigree and determine the…

A: On the basis of antigen located on the surface of RBC's several dozen blood groups have been…

Q: You have been hired to produce a family tree for three generations of a family where a disorder…

A: Introduction: A pedigree is a diagram that shows the genotypes and phenotypes of organisms from one…

Q: A phenotype trait that is depending on several genes is said to be:

A: A phenotype describes the observable features of an organism. This defines the overall look and…

Q: A Show the possible alleles that can be found in each offspring and write the blood type for each…

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

Q: A Mendelian genetic cross between a homozygous recessive individual and a homozygous dominant…

A: Mendel is known as the father of genetics. The  Mendelian inheritance mainly depicts the patterns of…

Q: In some aliens, one center horn (A) is codominant with two horns (B). If an alien inherits both…

A: When two alleles of a gene are have normal dominant-recessive inheritance pattern, dominant…

Q: Part B. Write the genotype for each individual person using H and h to represent the alleles.

A: GENOTYPE A genotype is defined as a complete set of genetic material. It is an individual's…

Q: People with  recessive disorders are usually born to normal parents who are both heterozygotes which…

A: The recessive disorder occurs when two mutated genes are inherited from each parent to their child.

Q: Is the trait shown in the pedigree below dominant or recessive? Write the genotypes of each…

A: Pedigree is defined as the diagrammatic representation of individuals of a family for a trait.

Q: please describe and explain 3 human epistatic trait.

A: Epistasis It depicts the effect of a gene mutation that is dependent on the presence or absence of…

Q: The alleles for Blood type O can be represented by: "O0". (Two capital Os) Which of the following is…

A: Blood group of an individual is represented by the presence/ Absence of certain proteins on the…

Q: Q2

A: Sickle cell disease is a autosomal recessive , so if father is affected then it means , it have two…

Q: The pedigree below is a sex-linked disorder. Given the pedigree below, which characteristic is…

A: Given: A pedigree is given. It shows a sex-linked disorder. It is not Y-linked sex disorder because…

Q: Hitch-hiker's thumb (TT or Tt=hitch-hiker, tt=non-hitch hiker) Dominate Hand (HH or Hh=…

A: Inheritance is the subject which is studied to analyse the transmission of characters from parents…

Q: A dominant eye color brown eyes and a recessive blue eyes. A woman had a brown eyes whose father had…

A: Pedigree analysis is a diagrammatic representation of inheritance of a particular trait throughout a…

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: Describe ONE human epistatic trait

A: Epistasis It is the phenomenon where the effect of one gene is dependent on the presence of one or…

Q: If a mother with sickle-cell anemia and a father with the sickle-cell trait havechildren, calculate…

A: Sickle cell anemia is a disease inherited from the parents of a person. The body of a person with…

Q: In a pedigree, the relationships between individual family members are represented as…

A: Pedigree charts are a tool used to map out the genetic inheritance of a trait in a family spanning…

Q: Please define the following terms: Gene Allele  Dominant  Recessive Homozygous Heterozygous

A: Genetics is a branch of biology, which focuses on the study of genes, genetic variations, and…

Q: Huntington's disease is a genetic disorder in humans which is controlled by a dominant gene. If one…

A: Huntington's disease is an inherited genetic disorder that is passed on as an autosomal dominant…

Q: Write out the possible alleles that can form from an organism with the following genotype: DdEEGG

A: The segment of DNA that can produce a polypeptide is called gene.  It is an inherited factor that…

Q: An animal has a genotype of two uppercase letters, such as AA. What is this type of genotype called?…

A: The different variations of genes are called alleles. In a diploid organism, there are two alleles…

Q: Explain how a Pedigree can be used to predict the inheritance patterns of traits through a family.…

A: A pedigree is a chart that shows the occurrence and appearance or phenotypes of a particular gene in…

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.