Heather was surprised to discover that she suffered from red-green colorblindness. She told her biology professor, who said, “Your father is colorblind, too, right?” How did her professor know this? Why did her professor not say the same thing to the colorblind males in the class?

Q: Suppose a woman has four sons, and two are colorblind but have normal blood clotting and two have…

A: Genes regulate genetic traits.

Q: Suppose that two people having free earlobes start a family. Their first child has free earlobes and…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: Mendel called plants that received different alleles for a trait from each parent _________________

A: Answer : heterozygous. Reason - Mendel called plants that received different alleles for a trait…

Q: Rod is colorblind. His mother and father have normal vision, but his maternal grandfather is…

A: In the given condition all the males are affected by color blind and not a single female is affected…

Q: Jim and the members of his family do not have freckles. His maternal grandfather has freckles. What…

A: The allele combinations of a gene present in an organism determine the genotype and phenotype. The…

Q: What is the gene that goes with a trait called?

A: A gene is the basic physical unit and functional unit of heredity. Theses are made up of DNA. Some…

Q: Suppose that a woman having normal vision and a man  having normal vision have a son who is…

A: Colorblindness is an X linked recessive disorder. It means that for a male to have the disorder,…

Q: I humans, pointed eyebrows are dominant over smooth eyebrows. Mary's father has pointed eyebrows,…

A: Let us represent the pointed eyebrows as B and smooth eyebrows as b. A person with pointed eyebrows…

Q: Alex (from part A) grows up and marries Molly - they end up having four children. Two of their…

A: Color-blindness is a X-linked recessive recessive inheritance. So, this trait will be transferred…

Q: A man has a straight hairline. Is it necessary for both his parents to also have straight hairlines…

A: The widow peak is a dominant trait over straight hair line.  Let W encodes Widow peak. And W allele…

Q: What is the difference in the studied skin color gene between dark skinned and light skinned people?

A: Human skin color can range from the darkest brown to the lightest hues. Differences in skin color…

Q: Two normal visioned parents have a color-blind son. What are the genotypes of the parents?

A: Color blindness is a genetic disorder in which a person is not able to see differences in color. The…

Q: Janet and her family members have attached earlobes (recessive trait). However, her maternal…

A: According to the Mendelian inheritance the phenotype of an organism is controlled by the genes that…

Q: If hair color were determined by a single gene, what would be an example of the gene’s alleles?

A: An allele is an alternative form of a gene. It is always represented in a pair for a specific trait.…

Q: Which is an example of a genotype: brown hair OR brown hair allele?

A: The genes are responsible for the specific characteristics of an organisms. The gene products…

Q: Why are men more likely than women to be color blind? Explain.

A: Genetics is a piece of science stressed over the examination of genes, genetic assortment, and…

Q: who did mandel work with?

A: Mendel was given the title of father of genetics. He published the results of his experiments named…

Q: Are men more likely than women to be color blind? Why? or Why not?

A: Color blindness is a genetic disorder where the person with colorblindness is unable to see or…

Q: Does it matter that the precise meaning of the allelic symbols T, t, R, and r is not given? Why or…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: A man and his wife both have normal vision, but their daughter has red-green color-blindness. The…

A: Sex-linked dominant: In this type the gene or condition is dominant type which means expressed in…

Q: Clark's eyes are brown in color. However, both his parents have eyes that are blue in color.…

A: At the gene level, two different forms of traits exist know as the dominant and recessive traits.…

Q: In a father and son are both defective in red-green color vision,is it likely that the son inherited…

A: Heredity is a biological process whereby a certain genes are passed by parent onto their offspring…

Q: What is the difference between homozygous recessive and homozygous?

A: The collection of genes in an individual is called genotypes. Each trait is coded by a pair of…

Q: Aaron and Bethany, the parents of Larry, Sarah, Danny, and Brittany, are normal for color blindness.…

A: Color blindness is a rare X-linked recessive disease. An X-linked recessive disease has the…

Q: How would  you set up a punnett square to show how many children of  a mother with brown eyes(B) and…

A: The brown eye colour is dominant over the green eye color trait.Allele for brown eye color: BAllele…

Q: A family of mice living in a small cage had babies with white fur coloring and brown fur coloring.…

A: Grandparents' genes can affect how their grandchildren look.

Q: What is the genotype of a person without freckles?

A: Freckle is a disease caused by the excess production of melanin (skin pigment). On the exposure of…

Q: Tommy is albino and has children with Ruth who is not albino, but has an albino mother. What…

A: First question:  Let the alleles of albinism be - A and a. Since albinism is inherited in recessive…

Q: Stephanie has normal color vision. Her husband Chris also has normal color vision. They have a son…

A: Colour blindness is an X linked recessive disorder that affects majorly the son. According to the…

Q: Why do unrelated children with a disorder such as Down syndrome resemble each other more closely…

A: Down syndrome is a genetic disorder that is caused due to presence of an extra copy of the 21st…

Q: A normal woman marries a man whose mother is colorblind. What is the probability of their children…

A: The sex-linked inheritance is the transmission of characters and their determining genes along with…

Q: What did Mendel do differently from those who preceded him?

A: DNA is the genetic material in most living organisms. DNA contains inheritable segments that are…

Q: All offspring had green pods. Which color is recessive?

A: Ans. Gregor Johann Mendel was a renowned scientist and genetic founder hence called the father of…

Q: Albinism is inherited through a recessive allele (a). Juan has normal skin color. His Mom and Dad…

A: Genotype means the alleles constituting the genetic composition and responsible for the expressing…

Q: If a male is colorblind, what information do you absolutely know about his daughters?

A: A gene is a sequence of nucleotides in genome that codes for a functioning molecule. There is…

Q: Why is inheritance of eye color more complex than just having either blue or brown eyes?

A: Eye colour is a genetically inherited trait that is influenced by more than one gene.  There is…

Q: "Justify the statement"" It is better to have colourblind father than to have colourblind mother""."

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

Q: Suppose a woman has four sons, and two are colorblind but have normal blood clotting and two have…

A: The normal female sex chromosome is denoted by X. The chromosome with color blind allele is denoted…

Q: Unattached earlobes (E) are dominant over attached earlobes (e) [Figure (a) and (b)]. If a woman…

A: Introduction  Sir Gregor Mendel is known as the Father of Genetics. He was the pioneer scientist who…

Q: Abraham is adopted. He has hair on the back of his hand (dominant trait). Could both of his parents…

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

Q: A woman with brown eyes has two brothers, marries a man with brown eyes. Their son marries a woman…

A: Brown eyes in humans is dominant to blue eye color. According to the given information:…

Q: 1.4 Why is that siblings don't look identical to each other?

A: Every human being has a set of chromosomes. Basically, a chromosome is a package that contains the…

Q: If a color-blind woman married a man whohad normal color vision, what would be theprobable…

A: Color blindness is a genetic disorder in which the photoreceptors of the retina cannot process…

Q: In humans, having freckles is dominant to not having freckles. What are the possible genotypes with…

A: Dominant genotypes can exist in two forms homozygous and heterozygous and recessive genotypes are…

Q: If eye color was controlled by the number of genes indicated, how many possible genotypes would…

A: Human eye color is controlled by more than 16 different genes. Gene HERC2 and OCA2 found on…

Q: Do you think albinism is caused by a dominant or recessive allele?

A: Albinism is a condition where the production of melanin is affected. Melanin is a pigment that gives…

Q: Since the Titanic sank Jack and Rose never got the chance to have children together. Rose spent the…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…