Color blindness occurs in about 8% of North American men of European descent, but only about 4% of North American men of African descent. Assuming X-linked recessive inheritance for color blindness, what frequencies of color blindness would you expect in each of these populations?

Q: Colorblindness is a sex-linked traits in humans. If a normal-visioned mother and a colorblind father…

A: One of the main risks associated with colorblindness is the potential for accidents or mishaps due…

Q: As discussed in the text, almost 5% of Caucasians carry a recessive gene for cystic fibrosis. Until…

A: Cystic fibrosis is an inherited disease which is characterized by formation of thick, sticky mucus…

Q: In a hypothetical population of 2500 people, 2275 people have brown eyes and 225 people have blue…

A: According to Hardy-Weinberg equilibrium, the frequency of alleles in a population can be represented…

Q: 1. For the following cross: Aa Bb cc Dd  x  Aa Bb CC Dd   what is the chance of obtaining an…

A: Introduction :  The study of genes and variations is referred to as genetics. It explains how traits…

Q: olydactyly is an autosomal dominant trait that results in the presence of additional digits on the…

A: According to Hardy Weinberg`s equilbrium  p2 + q2 + 2pq = 1 and p+q=1 p = frequency of the dominant…

Q: Black fur is dominant over gray. If a father is heterozygous dominant and the mother is homozygous…

A: Given data: Black fur is dominant over grey. Thus, B will represent black fur and b = grey fur…

Q: An individual with a form of red-green color blindness processes a genetically inherited trait that…

A: Color blindness, also known as color vision deficiency, is a condition where a person's eyes are…

Q: Consider the pedigree below for a recessive autosomal trait caused by allele t. The dominant…

A: A family tree which is made of symbols and lines which represents the genetic history of a person is…

Q: Albinism is a recessive trait in humans.A geneticist studies a series of families in which both…

A: Exceptions to the Mendelian pattern of inheritance are many in number, which are important to study…

Q: The ability to detect the bitter taste of Phenylthiocarbamide (PTC) is inherited. “Tasting” is…

A: Genes control the character of organisms. The alternate form of a gene is called alleles. Alleles…

Q: What kind of polymorphism is most likely represented?

A: In genetics, polymorphism is said to be when more than one allele occupies the gene locus within a…

Q: In domestic cats, the allele (L) is a dominant allele for short-hair trait. The recessive allele for…

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

Q: . In Figure 2-17, how does the 3:1 ratio in the bottom-lefthand grid differ from the 3:1 ratios…

A: Sex-linked genes are basically different from autosomes thereby, their inheritance pattern also…

Q: For sex-linked recessive traits, only females can be “carriers”, like how both Diana and Olivia are…

A: Hemophilia is defined as a rare bleeding disorder which is also known as sex-linked recessive…

Q: In rabbits, short hair is dominant (H) and long hair is recessive (h). In percentages, what is the…

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: brown hair, a widow’s peak, and freckles

A: Answer:Assume that hair color, hair line, and skin tone in humans are different traits that are…

Q: Ichthyosis is a rare X-linked recessive disorder that is characterized by scaling of the skin around…

A: The term "X-related recessive disease" is used to define as to a mutation in the X chromosome's…

Q: 5. (Spoilers! But the book is 85 years old...) Smaug met his demise during the razing of Lake-town…

A: Given the information, Smaug's genotype for the three traits , Smaug is a male dragon, and males are…

Q: homozygous recessive (aa,tetrapter) f1 produces homozygous (aa) f2, what is the dominant and…

A: Recessive character is expressed only in homozygous form. On the other hand,  dominant character is…

Q: What is the approximate percentage chance that individual V.2, shown in the pedigree diagrams above…

A: A recessive attribute is one that may be detected within the relationship between 2 variants of a…

Q: In humans the absence of a cleft chin is dominant to the presence of a cleft chin. Two individuals,…

A: In human genetics, traits are often inherited based on the principles of dominance and…

Q: One of the autosomal loci controlling eye color in fruit flies has two alleles: one for brown eyes…

A: The fruit fly's color of the eye is further controlled by the autosomal locus. The given fly…

Q: If one person with the trait of Huntington's disease (H h) has 2 children with a partner who does…

A: INTRODUCTION Huntington's disease It is an inheritable disease in which nerve cells in the brain…

Q: What are the chances that teh child will not like the Cilantro?    a) 25% b) 50% c) 0% d)100%

A: Cilantro (aka the leaves of the coriander plant) is a tasty herb to most people. A pleasing…

Q: which mode of inheritance does this trait show (autosomal recessive, autosomal dominant, X-linked…

A: The given image is of a pedigree chart. Squares represent males and circles represent females. Black…

Q: How would present allele frequencies of the sickle cell allele change, if there was no heterozygote…

A: Sickle cell anemia/SCA is an inherited-hematological disorder that significantly affects the shape…

Q: Assume that long ear lobes in humans are an autosomal dominant trait that exhibits 30% penetrance. A…

A: Inheritance is the process by which this genetic information present in the genes is passed on from…

Q: Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past…

A: An uncommon hereditary condition that impacts the brain and spinal cord is called Tay-Sachs disease.…

Q: In humans, there is a gene that influences the ability to smell the thioesters present in urine…

A: In humans , the ability to smell thioesters is basically an autosomal dominant character. Where,  A…

Q: Skin color in humans is determined by a polygenic inheritance system. The husband is white while the…

A: Polygenic inheritance is a mode of inheritance in which a particular trait is determined by the…

Q: Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for…

A: Given: Cystic fibrosis (CF) is an autosomal recessive trait. Normal allele =  F      CF mutant…

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.