Define the following: (a) polygenic, (b) additive alleles, (c) monozygotic and dizygotic twins, (d) heritability, and (e) QTL.

Q: What does Mendel’s law ofsegregation tell us about chromosomalinheritance?

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

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: Do the symbols A and a have anything to do with dominance and recessiveness?

A: The genotype for a particular trait is usually represented by a letter, the capital letter (first…

Q: What is a varicosity

A: Varicosity is a dilated vein that mostly develops in legs.  The role of our veins is  to carry blood…

Q: With regard to twenty-first-century birth, which of the following is a major social issue?

A: social issues  Social issues are the difficulties or problems face by society. These issues are face…

Q: ddTtBbqqAA X ddttBbQqaa:probability of producing an individual that is dominant for B & A and…

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: If a colorblind father and a non-colorblind carrier (heterozygote) mother have a daughter and a son,…

A: Colourblindness is an X-linked trait. X-linked traits are essential traits that are determined by…

Q: What are the alleles present in an individual?

A: A gene is a precise region of the DNA which regulates a specific trait. An allele is defined as one…

Q: What findings led geneticists to postulate the multiple- factor hypothesis that invoked the idea of…

A: In biology, the gene is the primary base of heredity. It is the summation of the sequence of the…

Q: What is epistasis? What is the difference between dominant epistasis and recessive epistasis?

A: Genetics entails a phenomena, epistasis wherein the impact of a gene mutation depends on the absence…

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: How would the genotypic and phenotypic ratios be affected if the mode of inheritance is a.…

A: Inheritance is the passage of genetic traits from one generation to another.

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

A: Let the gene 'A' encodes dominant trait. And 'A' allele is dominant over 'a' allele.  It is given…

Q: What do the terms genotype, phenotype, dominant, recessive, homozygous, and heterozygous mean?

A: Genotype : is an organism's complete set of genetic material. Phenotype: is the set of observable…

Q: Which of these three scenarios explains overdominancewith regard to the sickle cell allele?

A: A type of dominance is characterized by a phenotype that is more pronounced in a heterozygote…

Q: What is the difference between homozygous and heterozygous alleles?

A: The homozygous and heterozygous genotype is essential for determining the characteristics whether it…

Q: Define multiple alleles

A: Genetics is a branch of science that deals with the study of genes, heredity, and genetic variation…

Q: List all possible genotypes for the A, B, AB, and O phenotypes. Is the mode of inheritance of the…

A: To find: All possible genotypes for the A, B, AB, and O phenotypes and its mode of inheritance

Q: What must be true about the genotypes of parents who have a child who has a dominant trait?

A:

Q: Can Mendel’s principle of segregation be illustrated by a cross between two homozygous dominant…

A: The law of segregation proposed by Mendel states that during the gamete formation, each gamete…

Q: Define epistasis, pleiotropy, and polygenic inherance and give each. an example of

A: The nonadaptive evolution is defined as any change in allele frequency that does not lead a…

Q: If you mate a chocolate Lab with a black Lab of unknown genotype and you end up with a litter of…

A: The expression "genotype" refers to an organism's genetic code in a general sense; in other words,…

Q: Define the following: additive alleles ?

A: Genes are the segments of DNA (deoxyribonucleic acid) that contain genetic information.  This…

Q: What is Dominance variance ?

A: Variations are the genetic features present in the organisms distinct from their parents.

Q: Are sex-linked traits, sex-limited traits, and sex influence traits following Mendelian principles…

A: The DNA is the hereditary unit of an organism. The genes are composed of DNA  which is passed on…

Q: What are some codominant traits?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: What are dominant-negative, or antimorphic, alleles?

A: The term allele indicates the alternative forms of the gene. Every individual obtains two forms…

Q: If the cow that is heterozygous for citrullinemia is inseminated by bull that is homozygous…

A: Citrullinemia is an example of autosomal recessive disorder. It is a disorder of urea cycle that…

Q: What are multiple alleles? Give an example?

A: An allele is the one of two or more varieties of the gene. The person will inherit two alleles for…

Q: What are three similarities and three differences between Mendelian and Polygenic traits?

A: Gregor Johann Mendel is known as the father of genetics. He was the one to gave the postulates for…

Q: AaBbDDhhgg X AaBbDdHHGg: probability of producing an individual that is dominant for all five…

A: In this question, an individual will tend to follow the convention method of making a Punnett square…

Q: Why are monozygotic twins who are reared apart so useful in the calculation of heritability? What…

A: Heritability measures the amount a phenotype is caused strictly by gene than environmental…

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: What are the genotypes and phenotypes for Mendel’s true-breeding parent plants?

A: Gregor Mendel was the scientist who worked in the field of genetics. This field is associated with…

Q: How do we know that monozygotic twins are not identical genotypically as adults?

A: An embryo is a stage of human development that is created by the union of eggs and sperm. Organs and…

Q: Are sex-linked traits, sex-limited traits, and sex-influenced traits following Mendelian Principles…

A: Train is define as a specific character or feature of an organism and it is determined by the…

Q: What can you conclude based on the value of the computed Chi-square? How can you relate the two…

A: Gregor Mendel was a biologist and is also the father of genetics.

Q: What are Hypermorphic alleles?

A: Alleles are the variant forms of gene. Genes carry coded genetic information in the form of specific…

Q: What are Hypomorphic alleles?

A: An allele is a variant form of a given gene. It represents two or more variant forms of a gene…

Q: What features of a pedigree would distinguish between a Y-linked trait and a trait that is rare,…

A: A genetic trait is regulated by genes.

Q: What are the causes of Mendels success?

A: Gregor Johann Mendel was the person to carry out the  first scientific study  which lead to the…

Q: What is bovine?

A: Domesticated animals reared in an agricultural environment to provide labor and commodities such as…

Q: What is the probability that a baby will be black? What is the probability that a baby will be…

A: Heterozygous Monohybrid Cross: -   B b B BB Bb b Bb bb

Q: 三 三三 3 5 E 6 1. Widow's peak is dominant to no widow's peak. Determine the genotype and phenotype…

A: These questions are in accordance with the law of Dominance unless mentioned otherwise. The law of…

Q: What is the physical change of one allele in a heterozygote into the other?

A: Mendel suggested that "heritable components" named genes were defined by traits. In various…

Q: Is it possible to determine the genotype of an individual who has a dominant phenotype? Why or Why…

A: The genetic makeup of an individual is known as genotype.  The genotype reflects the alleles or the…

Q: Which of the seven chromosomal pairs that Mendel's genes were located?

A: The seven traits which Mendel used to study are Height Pod Shape Seed Shape Pea Colour Flower…

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.