Neither Tim nor Rhoda has Duchenne muscular dystrophy, but their firstborn son does. What is the probabilitythat a second child will have the disease? What is theprobability if the second child is a boy? A girl?

Q: A homozygous dominant man with Marfan Syndrome, an autosomal dominant disorder, has children with an…

A: Marfan syndrome affects the essential parts of the human body, including the bone, eyes, nervous…

Q: what proportion of the progeny are expected to be I h/l h?

A: The first F1 is LH/lh, and the second is lH/Lh. They receive one parental chromosome from first F1…

Q: could two brown eyed people have a blue eyed baby?

A: Brown eye trait is an autosomal dominant trait.  The blue eye is a recessive trait.  Let B encodes…

Q: How could a child inherit a disease that neither parent has?

A: In Mendel experiment F1 heterozygote Tt to be exactly like the parent in appearance. Because one…

Q: Omar and Aleema are expecting a baby and discover they are both carriers for the autosomal recessive…

A: Sickle cell anemia is a inherited Group of disorder where shape of red blood cells turns in sickle…

Q: Raizen is has a bearded man. he married joana who has a bearded father. what is the probability that…

A: Genotype constitutes a single gene or a set of genes. It represents the complete genetic material of…

Q: a. What is the expected genotypic ratio of children produced in this marriage? b. What is the…

A: A genotype is a collection or group of genes also can be defined as two alleles inherited for a…

Q: What will happen to the person if she/he had more than or less than 46 chromosomes?

A: Each human cell ordinarily has 23 pairs of chromosomes, for a total of 46 chromosomes. A shift in…

Q: can a women who is type A and a man who is type A have a child who is Type O? use punnett squrares…

A:

Q: What is Down's syndrome? Give its symptoms and cause. Why is it that the chances of having a child…

A: Human genetic disorders are caused by the absence, excess, or abnormal arrangement of one or more…

Q: Which genotype is homozygous? O aaBb O Aabb O AAbb O AABB

A: Homozygous individuals are those that contain two identical alleles for a particular gene. For…

Q: Why can a person carrying a translocation be normal except for theinability to have children?

A: Translocation is a hereditary change were a piece of one chromosome servers and connects to another…

Q: What are the odds this couple will have a blonde-haired son who can touch his nose with his tongue?

A: It is given that the ability to touch the nose by tongue is a dominant trait. Let T allele encodes…

Q: Why doesn’t the father (II-1) have the disease breast cancer? What is the formal name for an…

A: 1) The pattern of inheritance of the pedigree is autosomal recessive. The father (I-1) is…

Q: a) What is the genotype of the lady? b) What is the genotype of the man?

A: Ans-a) Possible lady 's Genotype will be- AA, AO.

Q: What is the probability that a color-blind woman who marries a man with normal vision will have a…

A: Color blindness is a condition which is passed on genetically. In this condition it is difficult for…

Q: Why is the chances of having a child with down's syndrome increases if the age of mother exceed…

A: Down’s syndrome is basically an autosomal genetic disorder that is caused by trisomy at chromosome…

Q: What is the labeled part of these figures?

A: Answer: SHOOT and ROOT system are the two parts of a plant where shoot includes the upper portion…

Q: If the dad is homozygous dominant for thick eyebrows, what is the percent chance of the baby having…

A: Mendel, in his monohybrid cross, demonstrated that with the help of Punnett squares, we can…

Q: Andy and Anne do not have polydactyl. Is it possible for them to have a child with polydactyl?…

A: Polydactyly is a condition where an individual is brought into the world with additional fingers or…

Q: Tim and Jan both have freckles, but their son Michael does not. Show with a Punnett square how this…

A: Freckles are small brown spots on the skin. Mostly in areas which get sun exposure. In most of the…

Q: what is the probability that 6 out of 7 children of Hh x hh will be Hh or HH?

A: A character in an organism is given by gene, which is generally represented by two alleles. One of…

Q: If the woman (phenotypically normal) in question 5(a) married to a color-blind man and already had a…

A: Colorblindness is an X-linked disorder. As females have 2 X chromosomes, they have less chance of…

Q: Beth and Tom each have a sibling with cystic fibrosis, butneither Beth nor Tom nor any of their…

A: Cystic fibrosis is an autosomal recessive disorder caused either due to absence of the gene that…

Q: Can a woman who is type AB and a man who is type AB have a child who is type O? use punnett…

A: Punnett square a. A Punnett square is a diagram that can calculate the percentage of genotypes for…

Q: Alfred is heterozygous for tongue rolling and has five fingers and Alfreda, his wife, cannot roll…

A: From the given information, it can be traced out that tongue-rolling is a recessive trait because…

Q: How many total chromosomes were on your karyotype sheets? How many of the chromosomes are…

A: DNA contains inheritable segments that are called genes that contain instructions for protein…

Q: If a male is homozygous dominant and a female is heterozygous, what is the probability that their…

A: Homozygous means that both the allele will be similar.  Heterozygous means that both allele will be…

Q: If individuals III-12 & III-16 seek an advice that if they marry, what is the probability of having…

A: Population genetics studies the inheritance of a trait from the parental generation to the…

Q: Karen and Steve each have a sibling with sickle-cell disease.Neither Karen nor Steve nor any of…

A: Genetic disease is caused due to chromosomal aberrations or mutation in the specific genes. Most of…

Q: A brown-eyed man with "hitchhiker's thumb" marries a brown-eyed woman with a straight thumb. If…

A: Hitchhiker's thumb is a genetic condition in which the thumb of the individual is hypermobile and is…

Q: What is the probability that the child indicated by the question mark will have both disorders?

A: Answer : Let us assume Gg representing allele for Grey's disorder and Oo being the allele for Orange…

Q: What's the probability that these two parents have an albino child

A: Albinism is the one type of genetic disorder. In the albinism their is a absence of any pigmentation…

Q: State the probability of a male child being affected and ofa female child being affected if the…

A: Sex-linked recessive disorder is often refers to as "X-linked recessive" disorders is a diseases…

Q: Boe is normal and his wife is not color-blind, she is a carrier. Which of the following children…

A: Given  Father is normal Mather is carrier for colour blind trait.    Colour blindness  It is a X…

Q: What are the chances that Ann and Michael next child will have the disease. Assume people marrying…

A: Pedigree analysis The formal study of the pattern of a trait in a pedigree to determine such…

Q: Charles was married once before and he and his first wife had a child with cystic fibrosis. The…

A: Cystic fibrosis is an autosomal recessive disease.  It is a genetically inherited disease.

Q: The percentage chance that the mother described above will give birth to a daughter with mid-digital…

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

Q: The genotype AABBCcDD will have the following gametes

A:

Q: Create a Punnett square to illustrate the offspring that could result if Felix had children with a…

A: The WAS stands for the Wiskott-Aldrich syndrome. It is the X-linked disorder, which means that if…

Q: Two albinos marry and have four normal children. Howis this possible?

A: Introduction Albinism is a genetic condition that causes a person's skin, hair, and eyes to be…

Q: Fill out the blanks of the pedigree (AA, Aa, or aa) How many children did the original couple have?…

A: The pedigree analysis helps us to identifying the mode of inheritance of a particular disease and…

Q: If a woman is heterozygous for neurofibromatosis (a dominant disorder) and produces with a…

A: Neurofibromatosis (NF1) is hereditary disease (which can be passed on from one generation to…

Q: Can you eliminate either of the two fathers and make a determination about the child's paternity?…

A:

Q: Tom and Jane have four children: two girls, Jill and Janet, and two boys, Tim and Todd. Tim has a…

A: The modes of inheritance of a genetic disorder are described by the manner in which the said…

Q: If Mark (A) and Gelli (O) have three children, which of their three children, Tony (O), Charm (AB),…

A: The A, B, and O blood groups were first identified by Karl Landsteiner. Blood types in the ABO blood…

Q: Using the karyotype and the disorder charts below, which of the following abnormalities is true for…

A: Karyotype:- Karyotyping is the process of matching and ordering all of an organism's chromosomes,…

Q: What is the chance that a child of III-1 and III-4 will have the disease?

A: Pedigree is a family tree drawn with standard genetic symbol representing the ancestry of an…

Q: Is the probability of having offsprings that are identical twins hereditary?

A: Identical twins are formed by random splitting of a fertilised egg. This leads to creation of two…

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.