Pea Plants In pea plants, a round-seed shape (R) is dominant over a wrinkled-seed shape (r). A round-seeded pea plant was crossed with another round-seeded pea plant. What are the genotype(s) and phenotype(s) ratios of the F1 generation? Show all possibilities using Punnett squares. State the F1 generation genotypes and phenotypes.

Q: Consider a cross between a true breeding purple flowered pea plant (genotype PP) and a true breeding…

A: Phenotype is the external appearance of an organism.

Q: In peas, purple flowers are dominant to white. If a purple flowered, heterozygous plant were crossed…

A:

Q: In pigs, let’s assume that a straight tail (T) is dominant to a curly tail (t).  Let us also assume…

A: According to the Mendelian inheritance each gene has two alleles that determines the phenotype of an…

Q: Two plants, both heterozygous for the gene that controls flower color are crossed. What percentage…

A: Punnet square is a visual representation of a cross between the individual where the gametes are…

Q: In sweet peas, gene C or P alone produces white flowers, the purple colour being due to the presence…

A: Dominance is a physiological influence on the same gene locus by an allele over its partner allele.…

Q: Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of…

A: Introduction In this question we have to write the distribution of phenotypic features in F1…

Q: A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with…

A: In this given statement, three characters are taken at a time, that is position of flower, length of…

Q: Suppose that red flower color (RR or Rr) is dominant to white flower color (rr) in a petunia. A…

A: Taking into consideration just one character and crossing the two plants is called a monohybrid…

Q: In a particular mammal, having long whiskers is a SEX-INFLUENCED trait; in FEMALES, long whiskers is…

A: Given  Trait is sex influenced  Long whiskers - dominant in female (recessive in male) Short…

Q: Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H,…

A: A trait is a characteristic feature that is unique to specific individual . In this , there are 8…

Q: Give the genotypes of the parents in each of the crosses given below.

A: A gene may have different variants, expressing different characteristics. These variants are called…

Q: Summer squash color is determined by the interaction of more than one gene.  The presence of CC or…

A: Epistasis is a genetic phenomenon in which absence or presence of mutations in one or more genes…

Q: Use a branch diagram to determine all the phenotypes and corresponding ratios that are expected to…

A: Branch diagram is a method for analysing recombination of different traits. The branch diagram…

Q: Assume that smooth seed coats are dominant over rough seed coat. If two pea plants that are both…

A: Diploid organisms carry two sets of chromosomes. Thus, two copies of almost every gene are found in…

Q: When one crosses two corn plants with green seedlings, the following progeny is obtained: 358 green…

A: Phenotypic ratio for the given numbers is, = 358/32, 87/32, 32/32 = 11.1, 2.7, 1 = 12 : 3 : 1…

Q: In certain plants, tall (T) is dominant to short (t). If a heterozygous plant is crossed with a…

A: Step 1 Homozygous is an individual having a similar mendelian factor or copies of the same alleles.…

Q: In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two…

A: According to the Mendelian Laws dominance, independent assortment, and segregation, various…

Q: In poultry , the genotype-phenotype relationship for comb shape are R/-P/-, walnut. R/-p/p rose,…

A: Genotype refers to the combination of alleles of different genes in an individual. Each gene has two…

Q: In shorthorn cattle, coat color may be red, white, or roan. Roan is an intermediate phenotype…

A: Gregor Mendel gave three principles of inheritance. The dominance is a concept where one allele of…

Q: In poultry, the genotype–phenotype relationships for comb shape are R/– P/–, walnut; R/– p/p, rose,…

A: The genotype-phenotype relationship means or tells that a single mutation can be associated with a…

Q: Can you determine from the phenotype of their offspring if the parents are homozygous or…

A: The term "phenotype" refers to an organism's visible physical characteristics, such as its…

Q: In cattle, coat color is inherited in a co-dominant fashion. Homozygous C R C R produces red coat,…

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

Q: A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What are the…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: dogs, wire-haired (S) is dominant to smooth-haired (s). In a cross of a homozygous wire-haired with…

A: There are a variety of terms used in genetics known as genetic terminology. F1 generation and F2…

Q: In a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red…

A: The genes are found on different chromosomes, occasionally far apart, but on the same chromosome,…

Q: When a white guinea pig is crossed to a yellow guinea pig, all the progeny are cream colored. From a…

A: In genetics, any gene has two alleles pairs viz. Dominant or Recessive. The allele which gets…

Q: In dogs, dark coat color phenotype (D) is dominant over albino (a) and short hair (S) is dominant…

A: Given  Allele D is dominant over allele a  Allele S is dominant over allele l    D = dark coat…

Q: A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with…

A: Mendel studied the biology of pea plants, and he derived the inheritance of a range of…

Q: Seed color is controlled by 3 independently assorting bi-allelic genes (P, Q, R), such that…

A: The correct answer to this question: option d. 4:1

Q: In a type of bean plant, the trait for yellow pods (B) for yellow pods is crossed with a plant that…

A: given  dominant- trait for yellow pod (B) recessive- trait for green pod (b) heterozygous yellow pod…

Q: In a cross between fair skin, black hair (heterozygous for all these traits) with brown skin, red…

A: A genetic trait is considered dominant if it is expressed in a person even in its single copy. While…

Q: A cross between a homozyous purple-flowedr and a homozygous white flowerd pea plants, results in…

A: Complete dominance is when the offspring shows one of the traits of its parents. The cross between a…

Q: Leaf color and stem length in a certain species of diploid flowers are controlled separately by the…

A: Trait is a characteristic features that is unique to particular individual .As per the question ,…

Q: In rabbits, gray hair (G) is dominant to white hair (g), and black eyes (B) are dominant to red eyes…

A: The genotype is the genetic material passed down through generations, while the phenotype is an…

Q: A heterozygous tall pea plant is crossed with a short pea plant. What are the expected genotypic and…

A: Introduction  Monohybrid cross deals with one character controlled by one pair of alleles such as…

Q: Suppose a student performs a three-point test cross with mice involving mouse genes T, V and D. If…

A: Three point test cross:- it is usually used to study the sequence and position three genes present…

Q: In one of his experiments, Mendel crossed homozygous yellow plants with homozygous green plants. The…

A:

Q: In a cross involving polygenic inheritance, three (3) gene pairs control plant height. The shortest…

A: Introduction When the characteristics which are inherited to the offspring are controlled by two or…

Q: In a dihybrid cross, a true breeding short white flowered plant is crossed with a non-true breeding…

A: Cross between Hetrozygous dominant with homozygous recessive   Hetrozygous Dominant - PpTt the…

Q: In chickens, the black (B) and white (W) alleles for feather color are codominant. If a homozygous…

A: Codominant cross results expression of both the alleles at the same time simultaneously, hence if we…

Q: In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest…

A: Height in plants is a polygenic trait, in which one phenotype is influenced by more than one gene.…

Q: In pigeons, the allele for normal feathers is dominant to the allele for frizzy feathers. li a…

A: It is given that allele for normal is dominant over feather. Let us represent normal feather with N…

Q: In dogs, dark coat color phenotype (D) is dominant over albino (a) and short hair (S) is dominant…

A: Given  D is dominant over a  D gives dark coat colour and a gives albino colour.    S is dominant…

Q: In a particular lizard species, green skin (G) is dominant to blue skin (g). You decide to cross a…

A: Allele pairs are defined using the words homozygous and heterozygous. Homozygous people are those…

Q: What is the genotype and phenotypes of the F1 and F2, along with their expected proportions? If the…

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

Q: In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the…

A: In the Drosophilidae family, Drosophila melanogaster is a fly species that are Diptera in the order.…

Q: In wolves, black eyes (B) are dominant to brown eyes (b) and short fur (S) is dominant to long fur…

A: The different forms of gene that specify a single character are referred to as alleles. The dominant…

Q: You carry out a trihybrid cross (a cross in which the parental plants differ for three characters)…

A: Trihybrid cross is that in which three contrasting pairs of characters are studied.  We are given…

Q: The genes for tall vine D and yellow seed G, are dominant over their respective alleles for dwarf d…

A: D encodes tall phenotype. It is dominant over d allele. The recessive phenotype is dwarf height. G…

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.