Everyone in Merida's family has orange hair, which is the dominant trait for hair color in her kingdom. Her family brags that they are a "purebred" line. She recently married a man who has light yellow hair, which is a recessive trait. Create a Punnett square to show the possibilities that would result if they had children. Use H to represent the dominant gene andb to represent the recessive gene. List the possible genotypes and phenotypes for their children. What are the chances of a child with orange hair? What are the chances of a child with yellow hair? Would Merida's children still be considered purebreds? Explain!

The R gene is a sex-linked gene that causes curly hair in guinea pigs. Wild-type guinea pigs have straight hair. Below is a pedigree of a guinea pig family with a history of curly hair. Filled-in shapes indicate individuals who have curly hair. Is the curly hair trait inherited in a dominant or recessive manner? explain

Given the pedigree below, answer the following questions. Note that filled symbols represent affected individuals. You assume that the allele carrying the disease is rare and therefore individuals marrying into the family are unlikely to have defective alleles. Also, assume complete penetrance. Q2) What are the genotypes of the following individuals listed in the table below? Use the uppercase “A” to represent the dominant allele and lowercase “a” for the recessive allele. Individual Genotype II-7   III-5   IV-1   IV-3   I-2   III-7

Below is a pedigree chart for a family that has a history of Alkaptonuria.   Individuals infected with this condition can have darkened skin, brown urine, and can suffer from joint damage and other complications.  Given this pedigree answer the following questions.   Given the data in the pedigree chart is this genetic condition autosomal dominant or autosomal recessive? What are the genotypes for #1, #2, and #3?  If either of the 4th generation "aa" females were to mate with a homozygous dominant male would any of their offspring illustrate the phenotype?  Why or why not?

Imagine a test cross of an unknown individual that results in all 1000 offspring being homozygous recessive for the two traits in question. What is the genotype of the unknown?A) Homozygous dominant for both genes. B) Homozygous dominant for one gene and homozygous recessive for the other.C) Heterozygous for both genes.D) Heterozygous for one gene and homozygous recessive for the other.E) This scenario cannot exist.

Use the Punnett square to find the genotype of the missing parent. Having freckles is dominant (F) and having no freckles is recessive (). Curly hair is recessive (c) and straight hair is dominant (C). A man with curly hair marries a woman who is homozygous dominant for straight hair. Complete the Punnett square. What is the probability they will have a child with curly hair? Straight hair? FF Ff f Ff ff % curly % straight

Imagine a human trait that is inherited via genetic maternal effect and found on the X chromosome (x-linked recessive). If both Jill and her paternal grandmother display the phenotype, Jill’s father does not, and Jill’s sons have the phenotype, what is the most likely genotype of: (Use the symbol Xa to indicate the allele leading to this trait) a. Jill's dad

The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the females inherit an X and a Y chromosome. The recessive allele codes for the common bell-shape  while the dominant phenotype is a round shape . Hudson is a round male and has offspring with Heidi, a bell-shaped female. They already have one daughter, Hannah, who is shaped like her mother. The reason for your answer above is:   a.Females heliodors inherit two X chromosomes, so it is less likely they would only inherit two recessive alleles for being bell-shaped.   b.Males heliodors inherit two X chromosomes, so it is less likely they would only inherit two recessive alleles for being bell-shaped.   c.Males only need to inherit one recessive allele to be bell-shaped.   d.Being male or female has no impact on the shape of a heliodor

Use the following parents to create a Punnet Square and answer the question.  Cross a homozygous dominant father with a homozygous recessive mother.  (you can use the letter A for your parental genotypes) What percent of the offspring will be homozygous recessive?

Below is a pedigree of a family with a history of X-linked recessive color blindness. We will use XB to represent the wild-type allele and Xxb to represent the mutant allele of the gene that leads to color blindness. The color vision status of the individuals with a question mark (?) is unknown. Part 1 Drag the correct genotype for each individual to the boxes under the pedigree symbols for the first two generations. O I. II. O1/4 O 1/2 O 3/4 xBxBxbxbxby xbxB XBXB or xbxB xBy O 0 Part 2 What is the probability that the female child in Generation III will be color-blind? Ⓒ1/4 1/2 O 3/4 000 O 0 0 Part 3 What is the probability that the male child in Generation III will be color blind? ? Autosomal dominant Autosomal recessive ? C Part 4 Are the first two generations of this pedigree consistent with the following modes of inheritance? ✓ No Yes