prit bris Smooth bori x beasd Wrinkled Smooth X Smooth Smooth Smooth Smooth Wrinkled 14. Based on the information above, what would a geneticist say about the example of the pea plants? A. It has no relationship to human transmission of traits. B. It is true only in the plant world. cave C. It helps show transmission of traits from of pn prilicw vojene onieuso parents to offspring. sido ne.. sitnorod D. It is too dated to have application in today's world. Take r It is based purely on chance. to loo Smooth Smooth

prit bris Smooth bori x beasd Wrinkled Smooth X Smooth Smooth Smooth Smooth Wrinkled 14. Based on the information above, what would a geneticist say about the example of the pea plants? A. It has no relationship to human transmission of traits. B. It is true only in the plant world. cave C. It helps show transmission of traits from of pn prilicw vojene onieuso parents to offspring. sido ne.. sitnorod D. It is too dated to have application in today's world. Take r It is based purely on chance. to loo Smooth Smooth

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter1: A Perspective On Human Genetics

Section1.3: What Are Genes And How Do They Work?

Problem 1EG: Ancient societies used knowledge that traits are heritable in domesticating animals and developing...

See similar textbooks

Similar questions

Many beautiful varieties of roses have been produced, particularlyin the last few decades. These newer varieties often have verystriking and showy flowers, making them desirable as horticulturalspecimens. However, breeders and novices alike have noticed thatsome of these newer varieties are not very fragrant compared withthe older, more traditional varieties. From a genetic point of view,suggest an explanation why some of these newer varieties withsuperb flowers are not as fragrant.
When artificial selection is practiced over many generations, it iscommon for the trait to reach a plateau in which further selectionhas little effect on the outcome of the trait. This phenomenon isillustrated as shown. Explain why it occurs.
Pick any trait you like in any species of wild plant or animal. Thetrait must somehow vary among different members of the speciesNote: When picking a trait to answer this question, do not pick the trait of wing color in butterflies.A. Discuss all of the background information that you alreadyhave (from personal observations) regarding this trait.B. Propose a hypothesis that would explain the genetic variationwithin the species. For example, in the case of the butterflies,your hypothesis might be that the dark butterflies survive betterin dark forests and the light butterflies survive better in sunlitfields.C. Describe the experimental steps you would follow to test yourhypothesis.D. Describe the possible data you might collect.E. Interpret your data.
Normally, wild violets have yellow petals with darkbrown markings and erect stems. Imagine you discover a plant with white petals, no markings, andprostrate stems. What experiment could you performto determine whether the non-wild-type phenotypesare due to several different mutant genes or to thepleiotropic effects of alleles at a single locus? Explainhow your experiment would settle the question.
One of the effects of climate change on ecological communities is the disruptionof seasonal timing or phenology. A team of biologists is trying to determine the potential forrapid evolutionary responses of plants to changing seasonal conditions. They do alaboratory selection experiment on flowering time in an annual plant to test for the presence ofadditive genetic variance for this trait. They measure the time between germination andflowering for 400 plants under controlled laboratory conditions and then use 25% with theshortest flowering times to find a second generation in the lab (with pollination based onrandom number sampling). The mean flowering time for the overall parental population was 80days. The mean for the selected 25% of individuals was 60 days. In the offspring generation, themean flowering time was 70 days. 6a. What is the narrow-sense heritability for flowering time for these plants under laboratoryconditions? 6b. If you performed another round of selection on the…
A large, genetically heterogeneous group of tomato plants was usedas the original breeding stock by two different breeders, namedMary and Hector. Each breeder was given 50 seeds and began aselective breeding strategy, much like that described in Figure24.11. The seeds were planted, and the breeders selected the 10plants with the highest mean tomato weights as the breeding stockfor the next generation. This process was repeated over the courseof 12 growing seasons, and the following data were obtained: A. Explain these results.B. Another tomato breeder, named Martin, got some seeds fromMary’s and Hector’s tomato strains (after 12 generations),grew the plants, and then crossed them to each other. The mean weight of the tomatoes in these hybrids was about 1.7 pounds.For a period of 5 years, Martin subjected these hybrids to thesame selective breeding strategy that Mary and Hector had followed,and he obtained the following results: Explain Martin’s data. Why was Martin able to obtain…
To avoid self-fertilization in his pea plants, Mendel had toa. spray the plants with a chemical that damaged thepollen.b. remove the anthers from immature flowers.c. grow the plants in a greenhouse that did not containpollinators (e.g., bees).d. do all of the above.
A farmer wants to breed a variety of taller corn.a) How can the farmer use variation in the height of thecurrent corn plants to produce taller corn plants?b) Will the farmer's work be most effective if height incorn plants is determined by polygenic inheritance,multiple alleles, or co-dominant alleles? Explain.c) The farmer finds that many of the tallest corn plantsare also very susceptible to a particular disease. Howcould the farmer design an experiment to find outif the genes for height are linked to the genes forresistance to the disease?d) If these genes are linked, what steps could the farmertake to create a breed of corn that is taller and moredisease-resistant than the current corn crop?
which characteristic of pea plants was NOT important in their selection as Mendel's research organism? A)pea plants have a short generation timeB) peas are easy to cultivateC) many true breeding varieties were available.D)pea plants are self-pollinating but can be cross-fertilized easilyE)Most other scientists of the time were also using peas, so a lot was known about them.
. Consider the genotypes of two lines of chickens: thepure-line mottled Honduran is i/i ; D/D ; M/M ; W/W, andthe pure-line leghorn is I/I ; d/d ; m/m ; w/w, whereI = white feathers, i = colored feathersD = duplex comb, d = simplex combM = bearded, m = beardlessW = white skin, w = yellow skinThese four genes assort independently. Starting withthese two pure lines, what is the fastest and mostconvenient way of generating a pure line that has coloredfeathers, has a simplex comb, is beardless, and has yellowskin? Make sure that you showa. the breeding pedigree.b. the genotype of each animal represented.c. how many eggs to hatch in each cross, and why thisnumber.d. why your scheme is the fastest and the mostconvenient
What is meant by sayingthat in relation to a given traitconditioned by a gene withtwo different alleles thegametes are always “pure”?
What are some examplesof phenotypical characteristicsthat present two or morevarieties and of phenotypicalfeatures that do not vary? Inrelation to the genescorrespondent to thosecharacteristics that varyamong individuals what canbe expected about theiralleles?