A genetic engineer is going to cross two watermelon plants to produce seeds for a spring planting. He is breeding for size, and wants to have as many watermelons with the phenotype for long shape as possible.  In watermelons, the allele for short shape (R) is dominant to the allele for long shape (r).  Would crossing a watermelon homozygous recessive for the trait with a watermelon heterozygous for the trait give the most long watermelons possible?  Explain your answer using Punnett Squares.

Q: A linkage map shows the distance between gene 'a' and gene 'b' to be 40CM, how many of each genotype…

A: Punnett Square Geneticslinkage map shows that the distance between gene a and gene b is 40…

Q: Among Native Americans, two types of earwax (cerumen) are seen, dry and sticky. A geneticist studied…

A: a. Let's assume that allele D imparts a sticky phenotype while the allele d imparts dry phenotype.…

Q: In the javelina an allele for albino (a) is recessive to the wild type color (A). At another locus,…

A: According to our guideline we can answer upto first 3 supports. So, upload other subparts…

Q: Two unlinked genes, A and B, encode very similar enzymes involved in the production of purple flower…

A: In the given context, there are two independent genes, denoted as A and B, which are responsible for…

Q: The Hairless phenotype in Drosophila is caused by a recessive mutation in the H gene. Wild-type…

A: In the realm of genetics, certain traits and their manifestations can exhibit intriguing…

Q: In a strain of tomato plants, short plant height and small fruit size are traits that display…

A: Genes will express according to their nature.If they are dominat to other gene then the dominant…

Q: Some inbred strains of the weedy plant Arabidopsisthaliana flower early in the growing season, but…

A: There are several different genetic pathways that regulate the conversion of plants from vegetative…

Q: You are trying to determine whether a horn shape (curved = dominant, straight = recessive) in cows…

A: A Test Cross is performed between one unknown genotype and one true-breeding recessive genotype to…

Q: A geneticist is using a three-point testcross to map three linked Drosophila recessive mutations…

A: In our analysis of genetic mutations, it is imperative to calculate recombination frequencies to…

Q: Since the white‑eye trait is X‑linked recessive, what result would you expect when crossing a…

A: A character which express by a recessive gene i .e. the gene is suppressed by dominant gene  is…

Q: Stem length in plants is controlled by two CODOMINANT alleles of one autosomal - one allele, B, adds…

A: 1-If the breeder starts crossing with two heterozygotes (Bb), then their initial lenghts would be…

Q: To determine whether a particular trait is autosomal or sex-linked, scientists or breeders would…

A: Reciprocal cross occurs between female and male parents, in this, both parents are crossed by…

Q: The non-wild-type alleles are k (clipped wings), l (long tail), and m (magical powers). The parental…

A: Here the test cross that produced 1572 offspring was conducted between k/k+  l/l+  m/m+…

Q: In a population of martians the hair color (H= purple or h=green) and eye-color (E=red or e=yellow)…

A: The genotype of the male’s father: HE/HEThe genotype of the male’s mother: he/heThe genotype of the…

Q: Steph Curry is really into his garden plants lately. He wants to have the best plants of any…

A: The plant which Steph bred was of dark green color with two different genotypes, one has a dark…

Q: If the genes are not assorting independently, what is the recombinationfrequency between them?

A: Recombinant offspring is the one generated by crossover between linked genes and its frequency can…

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 goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

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

Q: You are working for a parakeet breeder that has some green birds and some blue birds. You want to…

A: Green is the dominant phenotype.We can determine this because the blue male, who must be homozygous…

Q: During one of the genetics lab, you notice a few Drosophila fruit fly that has a rainbow body.  You…

A: In this case, hereditary crosses and offspring examinations are required to discover the strategy of…

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: Two different genes control the expression of kernel colour in Mexican black corn: black pigment…

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

Q: Two of the gene pairings in corn are tall (Ps) plants vs. dwarf (ps) plants and purple plant (Pg)…

A: Genetics is the study of the role of genes in differences between individuals. One method used to…

Q: Mendel obtained his initial pea plant varieties from local breeders who were developing new…

A: Pure breeding means the homozygous for the allele. Lets consider that breeder were crossing the…

Q: You are attempting to map the chromosome of a silk moth. You know that red eyes and white banded…

A: Linkage is a phenomenon which determines how genes are present in close proximity to the body, but…

Q: s seen in the photo, Labradors come in three colors-- black, brown and yellow.  What is the genetic…

A: The Labrador or Labrador Retriever refers to the breed of retriever gun dog. This breed was…

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 humans, brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and…

A: Brown eyes (B) = Dominant  Blue eye (b)= Recessive

Q: A child with Type O blood is born to a mother with Type A blood.   What is the genotype of the…

A: The genotype is defined as the genetic constitution of an individual for any particular trait. It is…

Q: Labradoodles are a designer dog "breed" created from the mating of a poodle with a Labrador…

A: Hardy-Weinberg principle describes a mathematical relationship between allele frequencies and…

Q: cows, there is a "splotchy" phenotype that is splotches of brown and white. A true-breeding white…

A: The transfer of genetic traits in the form of alleles from parents to their offspring generation…

Q: The ABO blood group in humans is controlled by a single locus with three different alleles.…

A: Blood is the liquid connective tissue of the body that transports nutrients, hormones, oxygen, and…

Q: Tay–Sachs disease is caused by recessive alleles on anautosome. In which case(s) could two parents…

A: Dominant allele is one that always expresses its phenotype. Recessive allele is one that is…

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: In garden pea plants, tall plant height (T) is dominant over dwarf plant height (t). Also, green pod…

A: Given: Tall plant - dominant - T dwarf plant - recessive - t Green pod color - Dominant - G Yellow…

Q: Farah breeds and sells true-breeding black salamanders.  At a salamander convention, she purchased a…

A: The phenotype of an organism is  dependent on the expression of the alleles. The alleles are the…

Q: ome Triffids have a poison stingers, and some do not. ome Triffids are orange, and some are purple.…

A: Purple = pp Orange = PP, Pp Stinger = SS, Ss No stingers = ss

Q: A GENETICIST DISCOVERS A NEW MUTATION IN PEAS THAT CAUSES MOTTLED FLOWER COLOR. SHE CALLS THIS…

A: Genes are the major hereditary units of life. Genotypes of an individual is defined as the overall…

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: Consider a cross between a Brown furred dog and a Yellow furred dog. All the puppies born from these…

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Q: Mendel examined two distinct flower phenotypes in his pea plants. Flower color and flower position.…

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Q: Daughter Mother Possible Fathers Horse Horse 2 3

A: DNA is a carrier of hereditary information from one generation to another for continuity of life.

Q: In a container/tub, place 50 pieces of red paper, 50 pieces of pink paper, and 50 pieces of white…

A: In genetics, genes forms the hereditary units and alleles are the alternative forms of the genes.…

Q: MUTATION IN PEAS THAT CAUSES MOTTLED FLOWER COLOR. SHE CALLS THIS MUTATION SPOTTY AND DETERMINES…

A: The two or more genes are said to be linked when they are located on the same chromosome and cannot…

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.