In pea plants, round seeds are dominant to wrinkled seeds.  Cross- A pea plant heterozygous for seed shape crossed with a pea plant that is homozygous recessive for seed shape. What percentage of their offspring will be homozygous?  What percentage of their offspring will be wrinkled?

Q: The pedigree below shows a family tree for hemophilia, which is a sex-linked recessive disorder. 2.…

A: given: Hemophilia - sex-linked recessive disorder. Hemophilic male - XhY Hemophilic female - XhXh…

Q: In Drosophila, the genes for body coloration and eye size are on different chromosomes.…

A: A gene is the basic structural and functional unit of life and is composed of DNA(deoxyribonucleic…

Q: Two wheat plants that are heterozygous for recessive alleles a and bare crossed. Both parents carry…

A: In dihybrid crosses, an arrangement in which the wild-type alleles of both loci are contributed…

Q: Glory flowers can be tubular shaped (T) or open shaped (t), where T is dominant to t. The flower…

A: A dominant trait is expressed in both homozygous and heterozygous genotypes.

Q: In pea plants yellow seed color, (GG) and round seed shape (WW) seeds are dominant traits, while…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Pea plants have two genes, each expressed with complete domina gene. "Y" codes for a yellow pea,…

A: In the question because there are two traits present hence this cross would be a dihybrid cross. A…

Q: In silkmoths (Bombyx mori), red eyes (re) and white-banded wings (wb) are encoded by two mutant…

A: Sometimes genes depicting two characters are present on the same chromosome. Such genes are called…

Q: droplasia is a dominant form of dwarfism in humans. Heterozygous individuals the dwarfism trait,…

A: Achondroplasia is genetic disorder which cause dwarfism . Such individuals with this genetic…

Q: In the following dihybrid cross: B/b; E/e x B/b; e/e What are the phenotypes of the offspring?…

A: Dihybrid cross BbEe × Bbee Gametes  BE Be bE be Be BBEe black  BBee Golden BbEe black…

Q: Wild-type canaries are yellow.  A dominant mutant allele of the color gene, designated W causes…

A: Given that a dominant mutant allele of the yellow color gene W causes white feathers.  Also,…

Q: In a trihybrid cross in garden pea plants that differ in plant height (tall is dominant to dwarf),…

A: It is defined as the cross between an organism having three pairs of contrasting (opposite)…

Q: Which of the Pedigree Diagrams above is most likely to show a family with Achondroplasia? A KEY…

A: Short-limbed dwarfism is known as achondroplasia. The definition of achondroplasia is "with no…

Q: Snapdragons are flowers that can be red, white, or pink. The red allele (R) is dominant over the…

A: Incomplete dominance is when a dominant allele, or form of a gene, does not completely mask the…

Q: The phenotypes and genotypes that result from a cross of Aa and aa (A = normal pigmentation and a =…

A: Albinism is a category of hereditary disease in which the body produces little or no melanin. Skin…

Q: In pea plants round seeds are dominant to wrinkled seeds. If a pea plant heterozygous for seed shape…

A: In genetics, 'dominant' refers to the trait that will appear in the offspring if one of the parents…

Q: In a trihybrid cross involving three traits where the parents are AaBbCc. (a) What is the…

A: Genetic traits are passed down through inheritance from parents to their offspring, who receive all…

Q: Two unlinked genes control flower color in snapdragons. You cross a true-breeding yellow flowered…

A: Epistasis is a phenomenon in which one allele hides up the expression of another allele.  Epistasis…

Q: Cross a heterozygous dominant purple flowered plant to a recessive white flowered plant. What is…

A: Mendelian genetics discusses the principles of inheritance of a trait. Mendel proposed three basic…

Q: In pea plants, purple flowers are dominant to white flowers.  Perform the following cross- A pea…

A: In this scenario, we are dealing with a classic Mendelian genetics problem. We have two pea plants:…

Q: n Mendelfruit plants, fruit may be either round (RR), long (rr) or oval (Rr). Cross two oval-fruit…

A: Mendel's law of inheritance is based on the inheritance of seven different characters studied by him…

Q: In a certain plant, the dominant form of gene B codes for blue fruit, while the recessive form…

A: As per the question: F1 cross: Parents: Doubly homozygous dominant white fruited plant (EEBB) and…

Q: F2 plants segregate colored : colorless. If a colored plant is picked at random and selfed, what is…

A: Introduction :- The term "progeny" describes the offspring of living things like plants and animals.…

Q: What are the F1 phenotypes expected from a cross between a heterozygous red-eyed female fruit fly…

A: The genotype of female parent fruit fly is given XWXw   The genotype of male parent fruit fly is…

Q: In a particular plant, long stem is dominant over short stem. This same plant may produce red…

A: The diagram is shown below.

Q: determine the order of the genes on the chromosome

A: This is the case of three point test cross. The progenies with greater numbers represent parental…

Q: In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous…

A: Let 'T' represent the tall allele and 't' represent the short allele.  We have, TT= homozygous tall;…

Q: The diagram shows a plant that is heterozygous for two genes. G = yellow; g = green; R = round; r=…

A: The correct answer is option number 1. Crossing over introducing variety by producing different…

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.