You are working with a dog breeder to produce a litter of puppies from their dogs. Of particular interest to this breeder is the texture of the coat and the presence of spots. The texture of the coat is controlled by one gene (R = rough coat, r = smooth coat), and the presence of spots is controlled by a separate gene (S = spots, s = solid coat). The breeder decides to perform the following cross: RrSs x rrSs What percentage of the offspring would you expect to have the following phenotypes: Rough and spotted: Incorrect answer: 56.25% Rough and solid: Incorrect answer: 18.75% Smooth and spotted: Incorrect answer: 18.75% Smooth and solid: Incorrect answer: 6.25%

Q: A geneticist crosses two yellow mice with straight hair and obtains the  following progeny:  1/2…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: Construct a Punnett square using the dihybrid cross TtGg × TtGg. (TT, Tt codes for tall plants, tt…

A: Two laws of Mendel:- 1) Law of Segregation/ Law of purity of gametes- Monohybrid cross. 2) Law of…

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

A: Phenotypic ratio- it is the relative number of offsprings offering manifestation of a particular…

Q: A tall plant with red flowers (dominant) is crossed with a dwarf plant with white flowers…

A: A dihybrid cross involves the study of the transmission of two genetic traits that are independent…

Q: among a certain breed of dog, short hair is dominant to long hair and dark coat is dominant to white…

A: The quest explores how a particular dog breed with particular dominance tendencies inherits two…

Q: Purebred wrinkled, green-seeded pea plants were crossed with purebred round, yellow-seeded plants.…

A: In classic genetics experiments, the study of trait inheritance often involves the examination of…

Q: In the flower plant named Four o’clock, R is the allele for red color and W is allele for white…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Construct a sex-linked cross on a black male cat and a female orange cat. The genotypes involved are…

A: The phenotypes of the two types of cats are Black and Orange. The genotypes involved are XB, XO, and…

Q: A tall pea plant (homozygous dominant) is crossed to a pea plant that is heterozygous for the gene…

A: homozygous dominant genotype= TT homozygous recessive genotype= tt heterozygous genotype=Tt

Q: An insect from a strain breeding for white eyes (RRww) was crossed to an insect from a strain…

A: When an organism is heterozygous, it has two distinct alleles of the same gene. For instance, pea…

Q: Consider the following cross: AaBbCcDdEe X AaBbCcDdEe. How many different phenotypes would you…

A: Introduction  A gene is consisting of a pair alleles/ factors and these alleles can be dominant or…

Q: 2. The shape of radishes may be long, round, or oval. The following results were obtained in the…

A: Introduction :  When both gene types (alleles) at a locus are only partially expressed, a phenotype…

Q: In roses, purple flower color is determined by the dominant P allele, while pp homozygotes are…

A: We're dealing with a test cross in roses, where we're uncertain about the genotype of one plant. The…

Q: Part 2. You perform the cross of the two EeHh rabbits and get the offspring shown below Wild type…

A: The chi-square test is the test done to know whether our data fits in one of the Mendelian ratios.…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.