In swallowtail butterflies, let's pretend that the R gene codes for coloring on the forewing. The R1 allele, which codes for red color, is dominant to the R2 allele, which codes for white color. If R1 is a recessive lethal allele, what phenotypic ratio would you expect when crossing two swallowtails with red forewings? 1 red : 2 white 1 red : 3 white 3 red : 1 white there is not enough information given to answer this question 1 red : 1 white 2 red : 1 white

Q: When many families were tested for their ability to taste the chemical PTC, the parental pairs were…

A: The ability to taste PTC is a dominant trait. Taster = TT, Tt Non taster = tt

Q: Part A: State the name of a disaccharide that contains this molecule (structure B).  Part B: A…

A: Introduction :  The six-carbon structure of glucose is represented by the chemical formula C6H12O6.…

Q: Two genes control the color and texture of tomatoes: Allele "R" generates a red coloration, and is…

A: The objective of this question is to determine the probability of getting a tomato plant with red…

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: Sickle cell anemia is a blood disorder that is expressed with incomplete dominance. The homozygous…

A: Genes are generally referred to as the basic unit of heredity. They are a part of DNA and are…

Q: In the early 20th century, the following information was discovered about comb shape in chickens. If…

A: Among genes, the set of functional associations between them is referred to as gene interaction.…

Q: Consider five unlinked genes: a, b, c, d, e are the recessive alleles, and A, B, C, D, E are the…

A: Quintuple heterozygote individuals are individuals who have inherited five different versions of a…

Q: The predicted outcome of the F1 cross is diagrammed in the Punnett square shown in the figure, where…

A: option (b) 1,2,3 have dark leaves.

Q: You have been tasked by a pharmaceutical company to generate a novel strain of Cannabis sativa for…

A: The union of male and female gametes and/or nuclei from the same haploid, diploid, or polyploid…

Q: A particular species of flowering plant comes in three colors: Red, Blue, and Purple. Red is…

A: Introduction The Phenotype Can Be Characterised As A Set Of Physical Features Of An Organism, Such…

Q: In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is…

A: A rose comb is produced when at least one dominant gene is present at the first locus and two…

Q: In the Manx tailless phenotype of cats, the tailless phenotype is caused by the mutation ML and is…

A: If the Manx tailless phenotype is caused by the mutation ML and inherited as an autosomal dominant…

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: A monohybrid cross between two pea plants producing yellow peas, resulting in an F1 phenotypic ratio…

A: Monohybrid cross  A cross where only one character is taken under observation.

Q: You have been tasked by a pharmaceutical company to generate a novel strain of Cannabis sativa for…

A: It is given in the question that, Gene 1 - T = Producing large amount of Terpenes (dominant)   ;…

Q: Let's continue with these two genes that control the color and texture of tomatoes. Allele "R"…

A: The objective of the question is to determine the probability of getting red tomatoes with a rough…

Q: You set up a cross between a male fruit fly with lobe eyes and a true breeding female fruit fly with…

A: Introduction:- A set of an organism's observable qualities or characteristics is known as its…

Q: In sweet pea plant, an allele for purple flowers(P) is dominant when paired with a recessive allele…

A: Heredity is a process through which organisms have their parents' traits. The characteristics that…

Q: snail, the dominant allele N codes for right-handed shell coiling and recessive allele n codes for…

A: Genes exist in two versions namely"recssive" and "dominant". The recessive alleles are those that…

Q: Consider a situation where F1 is backcrossed with one of its parental lineage and we obtained…

A: Introduction An allele is an alternative form of a given gene, meaning it is one of two or more…

Q: In the red backed vole (a small mouse-like mammal) there are two traits under investigation.  The…

A: The given problem can be solved with the help of a test cross. A test cross is used to determine…

Q: Red foxes are a species that has genetic sex determination similar to humans, where females are XX…

A: Dominant genes has quality  that they doesn't need the presence of a comparable gene in the gene…

Q: se+ is dominant and causes red eyes; se is recessive and causes sepia eyes sb+ is dominant and…

A: To determine the expected phenotypic ratios in the F₂ generation of a test cross, you can use the…

Q: In some plants, purple flower color is dominant to white flower color. If a plant that is homozygous…

A: An allele is a sequence that codes for a gene or are variant forms of a gene. The homozygous…

Q: Let's continue with these two genes that control the color and texture of tomatoes. Allele "R"…

A: The objective of this question is to determine the probability of obtaining a red tomato with a…

Q: A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is…

A: Alleles can be described as the different forms associated with particular gene. The formation of…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: In a different population of mice in New Mexico, coat coloration is influenced by a single gene…

A: The skin color is encoded by the B gene.

Q: In the yawncat (a rare hypothetical animal), the dominant allele R causes solid tail color, and the…

A: ANSWER;- A). 1/16

Q: Suppose a species of tulip has three alleles for the gene that codes for flower color. The CR allele…

A: A trait is a characteristic features that is unique to particular individual . In tulip , there are…

Q: In flies, eye color is a sex-linked trait. Red eyes are dominant (XE) and white eyes are recessive…

A:

Q: 6. Here is a cat family. Back fur is created by BB or Bb. White by bb. a) Based on what the pedigree…

A: Given: Black fur - BB / Bb White fur - bb

Q: Some swallowtail butterflies have red forewings, whereas others have white forewings. You cross two…

A: Dominant condition refers to a genetic trait that is expressed when an individual carries one copy…

Q: Let's continue with these two genes that control the color and texture of tomatoes. Allele "R"…

A: A dihybrid cross is a breeding test including two parents that contrast in two characteristics, each…

Q: The shape of a heliodor is an X-linked trait. Male heliodors inherit two X chromosomes, while the…

A: X-linked recessive traits are those inherited through sex chromosome X and expressed on homozygous…

Q: You know that hamster unicorns (Phodopus monocerus) will be the next big pet craze and are…

A: Mendelian inheritance is defined as the inheritance of specific traits controlled and regulated by a…

Q: genes interest with the dominant alleles being T-tall, H=hairy leaves and P=purple flowers. The…

A: In a trihybrid cross three characters are involve. In the above trihybrid cross the three characters…

Q: In horses, two different genes affect the coat. One gene which codes for coat colour has 2…

A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…

Q: What are the expected phenotypic ratios in the offspring of the following crosses (written as red :…

A: RRgg x rrGg - 0 : 0 : 4 (all green offspring).RrGg x RrGg - 9 : 3 : 4 (9 red, 3 orange, 4 green…

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.