Polygenic traits are: Group of answer choices Rare, comprising just a few traits. Most traits are monogenic rather than polygenic. Controlled by two or more genes, and include traits such as skin color and height. Controlled by just one gene, and include traits such as ABO blood type or freckles. Usually caused by harmful mutations that lead to disease development.

Q: Match the following : Genetic testing Genetic screening  Genetic screening programs Genetic…

A: There are several terms linked to genetic testing and screening in the list provided. These phrases…

Q: Please define the term “polygenic trait”. Please compare the polygenic traits with nonpolygenic…

A: Polygenic Trait: - A polygenic trait is a trait whose hereditary transmission and expression is…

Q: Color blindness is a sex-linked character, so if a color-blind man marries a normal woman, how will…

A: Color blindness is a sex linked recessive disorder more specifically X linked. It is a recessive…

Q: Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10…

A: Genetics is defined as the scientific study of two major aspects that are genes and heredity. It…

Q: A complex trait is a trait that O arises from changes in a single gene. O is not categorical or…

A: Complex traits are also known as Quantitative Traits. These traits are not easily classified.…

Q: About 1 in 100 people has a recessive genetic disorder. What percentage of people would completely…

A: Answer: Recessive genetic disorder is the disorder inherited by a recessive allele form parents to…

Q: Draw a punnett square for each problem.  Please be careful to notice whether a trait is homozygous…

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

Q: Single gene Mendelian inheritance patterns: if you are told the phenotype of the parents and whether…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Punnett Square Activity: Directions: You find out that having a thumb that can bend back (e.g.…

A: Dominant allele is an allele which shows its expression even in the presence of alternate allele.…

Q: A mother with breast cancer and a father have 6 children, half boys and half girls. A gene…

A: Patterns of hereditary inheritance appear in how certain characteristics or illnesses are acquired…

Q: List examples of complex and quantitative traits.

A: A genetically determined characteristic is known as trait. It is a distinguishing quality of an…

Q: Which one of the following sentences explains why twin studies tend to overestimate the heritability…

A: Heritability studies are fundamental in psychology and genetics, aiming to determine the proportion…

Q: Take a look at this family. Each parent has a different color hair, one blond and one brown. The two…

A: Introduction Gene is the functional unit of heredity. We inherit all the characters from our…

Q: Penetrance and expressivity are related but can be distinguished easily because:

A: Answer: PENETRANCE = It is the expression of a particular phenotype , which corresponds to a…

Q: Threshold Model of complex traits. The reshold Model explains the tribution of some complex traits.…

A: Ans- discontinuous; maternal intelligent

Q: Lactose intolerance is a disorder caused from the inability to digest the sugar lactose. It is not…

A: Lactose intolerance is an inability to digest the lactose, a sugar present in the milk and other…

Q: A ________ is a form of a gene that, when present, covers up the appearance of the _______…

A: Alleles are the alternative forms of the gene, which code for different versions of a particular…

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: What are the causes of unexpected rations and why? (non-dominant nature of traits, several genes…

A: The Mendelian traits show phenotypic ratio of 9:3:3:1 in case of a dihybrid cross, and 3:1 in case…

Q: Which of the following occurs when the phenotypic effect of one gene contributes to the phenotypic…

A: The phenotype of an organism generally results from two basic factors: expression of organism’s…

Q: Use the following figure to answer the question. Shaded crossed symbols indicate affected…

A: Tay Sachs disease has an autosomal recessive inheritance. It might not be seen for some generations.…

Q: Definition with example for the following terms: additive genes concordance of twin pairs…

A: Polygenic characteristics are a group of features that result from the interaction of many genes.…

Q: Assume for a moment that a child has a autosomal recessive disorder, but both parents appear normal.…

A: The autosomal recessive is one of the ways to pass down the trait into generations or families. The…

Q: if your phenotype is for a dominant trait, such as curly hair, then your genotype is? a: also for…

A: In genetics, the observable traits of the organisms are known as the phenotype, while the genetic…

Q: Which of the following statements about Mendelian or complex disease is TRUE?   Question options:…

A: Introduction  Quantitative trait locus analysis is a statistical technique that combines phenotypic…

Q: Incomplete penetrance can make autosomal dominant traits skip generations within a family tree. True…

A: Dominant trait The trait which is shown by individuals in both homozygous dominant and heterozygous…

Q: Which of the following statements is INCORRECT? Sex-limited traits affect a structure or…

A: Sex inheritance has three types, sex-limited, sex-linked and sex-influenced. Sex linked inheritance…

Q: A genetic disorder caused by an autosomal, recessive allele is characterized by falling asleep in…

A: Introduction :- Various birth defects, chronic illnesses, developmental issues, and sensory…

Q: Which of the following is defined as an individual’s observable traits?   Allele   Phenotype…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

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.