If a pea plants alleles for height are t, what is true of it's parents? O both parents were tall O both parents contributed a recessive allele O both parents were short O both parents contributed a dominant allele
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- The allele for tall is dominant to the allele for short in pea plants. Which of the following would be a phenotype of a plant that is Tt? medium sized short O tall O It depends on the time of year.Figure 8.9 In pea plants, round peas (R) are dominant to wrinkled peas (r). You do a test cross between a pea plant with wrinkled peas (genotype rr) and a plant of unknown genotype that has round peas. You end up with three plants, all which have round peas. From this data, can you tell if the parent plant is homozygous dominant or heterozygous?In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele for red flowers (p). An allele for long pollen grains (L) is dominant when paired with a recessive allele for round pollen grain (l). Bateson and Punnett crossed a plant having purple flowers/long pollen grains with one having white/flowers/round pollen grains. All F1 offspring had purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple flowers/round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?
- Ancient societies used knowledge that traits are heritable in domesticating animals and developing agricultural crops. What might account for the failure to recognize that the same processes operate in humans?A nectarine is a peach without the fuzz. The difference is controlledby a single gene that is found in two alleles, D and d. At themolecular level, does it make more sense to you that the nectarineis homozygous for the recessive allele or that the peach is homozygousfor the recessive allele? Explain your reasoning.A botanist has acquired agroup of sweet pea plants. Allef the plants have yellow pea pods he recessive trait, ecept for one, which has green pea pods he deminant trat. Pe pod color is a trait cused by asingle gene. n thistutorial, you wil determine hew the botanist can identify the genotype of the green pea pod, and how this relates to Mendel's l and meios There are two pods of peasa geen one dominant trait and a yellow one ecesse t A How could the botanist best detemine wether the gentyoe of the preen pod planthemane or heterorygous? A Cross the green pod plantwith he geenpod plant a Cross the green pod plant witha yellowpod plant. C Self polinate the green pod pant Punnett squares can be used to predet the bwo possible outcomes of the botanist's test eros, In the space below, diagrem the result if the nnown plant hemonveous (GG) and denote the expected phenotypes. Then diagram the resuit ifthe uninen plent s heterongous and denata the pected phenotypes
- In a certain plant, white flowers are dominant to red flowers. If the cress of two white-flowered plants produces some white-flowered and some red-flowered plants, what is the genotype of the parent plants? WW x Ww wW x WW Ww x Ww MW X MWIn pea plants, the tall trait is dominant and the recessive trait is short. What is the GENOTYPE ratio of the following offspring? * T TT Tt Tt tt O 3 Tall: 1 Short 3 TT: 1 tt 3 Short: 1 Tall O 1 TT: 2 Tt: 1 tThe hart baowshows mmy trats found in pea plants A botarilst crosses two pure breeding pea plants. one with yellow seeds and one with green seeds, then ose those offspring to produce a F gensration Pea Plant Traits Hower Pod Coler Plant Size Ieated Green Purple G P Green Corstricted Yellow White Terminal Short (Owarf) a Source Pea Plaw Charocienties Mariann Ru Wikimedia Commons What would be the genotypic ratio for seed color in the F 2 generation? O 3 homozygous dominant : 0 heterozygous: 1 homozygous recessive Previous
- pea plants produce different colored flowers, with purple flowers a dominant trait and white flowers a recessive trait. Cross two white flowered plants. Plant one: Genotype Phenotype Gametes Plant two: Genotype ydo not Gametes Phenotype onpoider ouLOp A Punnett square garciaio187@student.laced.edu Personal use only, do nOtreproduce. darciato187@student.laccd.edu Genotype ratio: Phenotype ratio: notrenroduce. What percentage of their offspring would be expected to be white flowered? 9 A white flowered plant is crossed with a plant that is heterozygous. White flowered plant: Genotype Phenotype Gametes ce. aruse only do noret Phenotype -11-02 Heterozygous plant: Genotype Gametesedu Punnett square 1870s0dent Personal.use only. do DOLreproduce 20 TT-0207 Galciato1870Studert.iacco.edu Genotype ratio: Phenotype ratio: What percentage of their offspring would be expected to be white flowered? Lab 8 Genetics E6What biological concept was Mendel studying when he crossed pea plants many times over many generations? O imbalance in ecosystems O predator-prey relationships O dominant and recessive traits O male and female genetic differencesAa v Dc Which of the following genotypes would produce a pea plant with the phenotype of purple flowers? Pea Plant Traits Seed Shape Seed Color Pod Shape Pod Color Flower Flower Plant Size Color Location Round Yellow Inflated Green Purple Axial Tall R Y G P A Wrinkled Green Constricted Yellow White Terminal Short (Dwarf) i a O PP pp Pp Recessive Traits Dominant Traits