Two true-breeding stocks of watermelons are crossed.  One parent had sweet fruit and yellow spots, and the other had bitter fruit and no spots; all the F1 individuals were bitter with yellow spots. If 500 F2 offspring are obtained, approximately how many of them would you expect to have bitter and no spots. (Assume independent assortment).     125     95     30     280     15

Q: In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2…

A: In pearl millet plant, there are two plant color mutants, Rp1(red) and Rp2(purple). They are allelic…

Q: One plant may contain hundreds of individual seeds, each resulting from a separate fertilization…

A: Let's say gene controlling seed color has 'B' and 'b' alleles. 'B' is the dominant allele for black…

Q: Two genes in tomatoes are 61 mu apart; normal fruit (F) is dominantto fasciated (flattened) fruit (…

A: Map distance is calculated by dividing the number of recombinant offspring with the total number of…

Q: In a field of 10,000 pea plants, a farmer observes that 8,500 exhibit the dominant round (R) seed…

A: The number of heterozygous for round seed plants are 4800.

Q: Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the…

A: To find: The genotypes giving the smallest number of different phenotypes in a cross between a 29cm…

Q: Sesame plants produce seed pods with one chamber (O) or three chambers (o), and leaves that are…

A: A trait can be either dominant or recessive. If a particular trait is expressed when it is in…

Q: A strain of plants has a mean height of 24 cmcm. A second strain of the same species from a…

A: The above problem mentions one plant of twelve cm and another plant of thirty-six cm. Therefore an…

Q: In maize, a dominant allele A is necessary for seed color, as opposed to colorless (a). Another gene…

A: In the given case, allele "A" codes for color and allele"a" do not. Allele "Wx" codes fro normal…

Q: You decide to cross two true-breeding stocks of pea plants. One parent has blue, axial flowers and…

A: In genetics, the genes are the hereditary units of life. It performs several functions. It too…

Q: In tomato plants, tall vine (D) is dominant over dwarf vine (d) and round fruit (O) is dominant over…

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

Q: In the left-hand part of Figure 2-4, the red arrows showselfing as pollination within single flowers…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2…

A: Allele refers to the different forms of same gene, for example, height, it can be tall short or…

Q: A pea plant showing two dominant phenotypes, tall plant (D) and purple flower color (W) is…

A: Genotype- A genotype is a representation of an organism's genetic composition. It can be applied to…

Q: In garden pea plants, tall stem length (T) is dominant over short stem length (t). A pure breeding…

A: The frequency of the dominant phenotype in the F2 generation is 1.

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: The trait of medium-sized leaves in iris is determined by the heterozygous genotype TRIT. Plants…

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

Q: In corn, a triple heterozygote was obtained carrying themutant alleles s (shrunken), w (white…

A: Heterozygous refers to inheriting different forms of a particular gene from each parent.…

Q: What proportion of the plants from the following crosses would be tall with yellow seeds? T=TALL,…

A: In the question, it is given that T for tall Y for yellow. The genotype is given in the F1…

Q: We cross two short, non-purple F2 plants. What ratio of the progency will be short and non-purple in…

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

Q: True breeding eggplant plants producing deep, purple colored fruit are crossed with true breeding…

A: In Mendelian genetics, the hereditary of characteristics is due to the effect of inheritance.  The…

Q: The garden flower Salpiglossis sinuata (paintedtongue) comes in many different colors.…

A: Given data is as follows: Parents F1 phenotype F2 phenotype Red x blue All red 102…

Q: What is the distribution of phenotypes produced from a cross between two pea plants that breed pure…

A: The branch of biology that deals with the study of genes, heredity and genetic variations are termed…

Q: Two inbred lines of sunflowers (P1 and P2) produce different total weights of seeds per flower…

A: An inbred line is a population in which closely related animals, such as siblings or parents and…

Q: What is the expected F1 phenotypic ratio resulting from a dihybrid cross between two parental pea…

A: Option 5 is the answer. Expected phenotype ratio is 9:3:3:1. Male : Female YR Yr yR yr YR YYRR…

Q: Below is the linkage map for genes y, sh and c that are in cis arrangement. Interference is 0.4 and…

A: The cis arrangements of genes on a chromosome mean that all the dominant genes are on one chromosome…

Q: In peas, tallness is dominant over dwarfness, and red colour of flowers i dominant over the white…

A: The terms dominant and recessive are defined by Gregor Johann Mendel. For each gene, there are two…

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: A) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of…

A:

Q: purple kernel color, while the homozygous recessive genotype causes red kernel color. If corn plants…

A: Each gene has two copies in sexually reproducing creatures like humans and other animals. The two…

Q: In tomatoes, red colour (R) is dominant over yellow colour (r) and tall plants (T) are dominant over…

A:

Q: If Dominant Tall ( TT ) plant with Axial Flowers ( AA ) is crossed with recessive ( tt ) plant…

A:

Q: For questions 1-3, consider a pea plant homozygous for tall stems and green seeds crossed with a…

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

Q: A plant with the genotype AAbb was crossed with one with the genotype aaBB. The F1 plants were…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Considering the Mendelian traits tall (D) versus dwarf (d) and violet (W) versus white (w), consider…

A: Considering the genes separately, if the parents genotype for height is both DD, then there is no…

Q: Complete the punnett square below for a cross between AA and aa A Aa a a QUESTION 4 A Aa Complete…

A: The Punnett square is a square diagram that is used to predict the genotypes of a particular cross…

Q: D D 1 2 d In a particular plant, leaf color is controlled by gene locus D. Plants with at least one…

A: A Punnett square is a table that allows us  to predict the genotypes of a specific breeding…

Q: Radish flowers may be red, purple, or white. A cross between a red-flowered plant and a…

A: the answer is option (e).

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.