Concept explainers
a.
To determine: The endosperm genotypes result from crosses s/s female x S/S male
Introduction: Corn is generally classed as to kernel endosperm characteristics. Endosperm refers to an edible seed tissue, surrounding and absorbed by the embryo.
b.
To determine: The endosperm genotypes result from crosses S/S female x s/s male.
Introduction: Endosperm is a structure of a seed that stores nutrients. Nutrients are stored in the form of starch, proteins or oils and these nutrients are utilized by the seed during developmentgermination to develop an embryo.
c.
To determine: The endosperm genotypes result from crosses S/s female x S/s male.
Introduction: The genotype is the part of the genetic makeup of a cell, and therefore of any individual, which determines one of its characteristics.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
ACHIEVE:INTRO TO GENETIC ANALYSIS 1TERM
- . a. A mouse cross A/a ⋅ B/b × a/a ⋅ b/b is made, and inthe progeny there are25% A/a ⋅ B/b, 25% a/a ⋅ b/b,25% A/a ⋅ b/b, 25% a/a ⋅ B/bExplain these proportions with the aid of simplifiedmeiosis diagrams.b. A mouse cross C/c ⋅ D/d × c/c ⋅ d/d is made, and inthe progeny there are45% C/c ⋅ d/d, 45% c/c ⋅ D/d,5% c/c ⋅ d/d, 5% C/c ⋅ D/dExplain these proportions with the aid of simplifiedmeiosis diagrams.arrow_forwardYou make a test cross between an F1 plant that is heterozygous for two dominant resistance genes (R1 and R2) and a line that is homozygous recessive at both loci, and inoculate the progeny with a pathogen race that is avirulent on both R1 and R2 (i.e., it carries avirulence genes Avr1 and Avr2).You get 50 susceptible progeny out of 200 test cross progeny. (a) What is the linkage phase for these two genes? (b) What is the recombination distance?arrow_forwardCan you please help find how many black leaves there are?arrow_forward
- what is the gametic ratio of the following?arrow_forwardFor the cross: PpAa x PpAa P = purple flowers (Dominant) p = white flowers A = axial flowers (Dominant) a = terminal flowers a. What are the possible gamete classes that can form from these parents? b. What are the expected offspring genotype classes and ratios/proportions/fractions which will result from the cross? c. What are the expected offspring phenotype classes and ratios/proportions/fractions which will result from the cross? 2. Predict ratios/proportions/fractions of genotypes and phenotypes of the following crosses. T = tall stem t = dwarf stem P = purple flowers p = white flowers G = green pods g = yellow pods A = axial flowers a = terminal flowers R = round peas r = wrinkled seeds A. ttPp x Ttpp B. GgRr x ggRr C. PpGg x ppggarrow_forwardE. W. Lindstrom crossed two corn plants with green seedlings and obtained the following progeny: 3583 green seedlings, 853 virescentwhite seedlings, and 260 yellow seedlings . Q. Explain how color is determined in these seedlings.arrow_forward
- 1) S-Tu-U 2) S-U-Tu 3) Tu-S-U 4) U-S-Tuarrow_forwardA) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of the parent plants. Explain your predictions using data from the experiment. (Again, you may need to use data from other crosses!) B) Consider the offspring, the next generation (F1), from the Purple 1 x Purple 2 cross. What is the probability of a green stem plant? How do you know this? C) What is the probability in the F2 generation of a green stem offspring? Use a Punnett square(s) and quantitative data to explain your thinking. Upload your Punnett square(s).arrow_forwarda) You are a farmer taking your squash to the farmer’s market. Green squash happens to be very popular with your customers and can be sold at a higher price than white or yellow squash. Which of the following squash plant crosses will give you a higher number of green squash to bring to the market? Show your work 1. AaBb (white) x Aabb (yellow) or 2. aaBb (white) x Aabb (yellow) b) What type of epistasis does this squash coloration likely demonstrate and why?arrow_forward
- Give the correct genotype of each progeny. Determine the % crossover of each gamete and the correct sequence of the genes. Compute for: DCO expected, coefficient of coincidence and interference Interpret the value of the interference. Map the genes.arrow_forwardIn Mendelfruit plants, fruit may be either round (RR), long (rr) or oval (Rr). Cross two oval-fruit plants. What is the phenotypic ratio of the resulting offspring? (what do they LOOK LIKE?) Cross a round-fruit plant and an oval-fruit plant. Give the phenotypic ratio of the offspring.arrow_forwardGiven the following information, determine the inheritance of flower color in this plant and determine the genotypes of the parental individuals, which are from pure- breeding lines. CROSS 1 CROSS 2 purple X colorless all purple 9/16 purple colorless X red all purple as in Cross 1 F1 F1 F2 F2 3/16 red 4/16 colorlessarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning