This quiz works best with JavaScript enabled. Home > Agriculture > Plant > Genetics > Plant Genetics – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Genetics Quiz 2 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The male part of the flower is..... A) Sepal. B) Stamen. C) Pistil. D) Ovaries. Show Answer Correct Answer: B) Stamen. 2. Geotropism is a force that affects certain organisms. Which of the following is an example of a plant responding to the external stimulus of gravity? A) Flowers producing nectar to attract bees. B) A potted plant wilting when it dries out. C) Plant roots growing down into the soil. D) A seedling growing towards a sunny window. Show Answer Correct Answer: C) Plant roots growing down into the soil. 3. Tigers and household cats are members of the same family. Their sizes and other features are very different. What is the cause of the differences? A) Genetics. B) Biochemical makeup. C) Domestication. D) Habitat. Show Answer Correct Answer: A) Genetics. 4. Mendel did test crosses. What is the purpose of a test cross? A) To determine the parents phenotype (appearance). B) To determine how many offspring can be produced by 2 parents. C) To determine the chance of producing a particular trait from 2 parents. D) To determine the parents genotype. Show Answer Correct Answer: C) To determine the chance of producing a particular trait from 2 parents. 5. Gregor Mendel's principles of genetics apply to A) Plants only. B) Animals only. C) Pea plants only. D) All organisms that reproduce sexually. Show Answer Correct Answer: D) All organisms that reproduce sexually. 6. A root grows downward in a response to an.....stimulus A) Internal. B) Geotropism. C) External. D) Phototropism. Show Answer Correct Answer: C) External. 7. Yy is an example of..... A) A homozygous phenotype. B) A heteroygous phenotype. C) A heterozygous genotype. D) A homozygous genotype. Show Answer Correct Answer: C) A heterozygous genotype. 8. When a plant wilts due to a drought, it is responding to which of the following internal stimuli? A) Increased storage of glucose in the leaves. B) Lack of nutrients carried by water in the plant. C) Decreased rate of photosynthesis in the stem. D) Decreased water pressure within the plant cells. Show Answer Correct Answer: D) Decreased water pressure within the plant cells. 9. Two different genes for a trait (sometimes called hybrid). Bb A) Homozygous. B) Heterozygous. C) Protein. D) Genotype. Show Answer Correct Answer: B) Heterozygous. 10. The different forms of genes are known as A) Environment. B) Probability. C) Traits. D) Alleles. Show Answer Correct Answer: D) Alleles. 11. A pea plant produces 5 seeds. What percent of its alleles come from the mother? A) 10%. B) 20%. C) 25%. D) 50%. Show Answer Correct Answer: D) 50%. 12. Define Genome Editing A) Technology that allows the development of new genes. B) Technology that allows the growth of new organs in a lab. C) Technology that allows a change to an organism's DNA. D) None of above. Show Answer Correct Answer: C) Technology that allows a change to an organism's DNA. 13. Heredity is the passing of traits from ..... to ..... A) Parents to offspring. B) Fungi to protists. C) Water to rain. D) Predators to prey. Show Answer Correct Answer: A) Parents to offspring. 14. Gravitropism and ..... are the same thing. A) Thigmotropism. B) Geotropism. C) Triangular Prism. D) Phototropism. Show Answer Correct Answer: B) Geotropism. 15. The enlarged base of the pistil that stores the eggs of the plant is the ..... A) Style. B) Ovary. C) Stigma. D) Ovule. Show Answer Correct Answer: B) Ovary. 16. What is progeny testing A) Comparing animals off spring with other animals off spring kept in the same conditions. B) Testing an animals performance for different traits. C) Comparing animals off spring with other animals off spring kept in the different conditions. D) Comparing an animal with other animals kept in the same conditions. Show Answer Correct Answer: A) Comparing animals off spring with other animals off spring kept in the same conditions. 17. What happened to the green trait in Mendel's pea plants? A) The resulting plants were yellow/green-ish. B) It provide support to Darwin's theory of evolution by disappearing. C) It was hidden by the dominant yellow gene. D) The pea plants produced 50% less green seeds. Show Answer Correct Answer: C) It was hidden by the dominant yellow gene. 18. If a pea plant has a recessive allele for green peas, it will produce A) Green peas if it also has a dominant allele for yellow peas. B) Green and yellow peas if it has a dominant allele for yellow. C) Green peas if it doesn't have a dominant allele for yellow peas. D) Yellow peas if it doesn't have a dominant allele for green peas. Show Answer Correct Answer: C) Green peas if it doesn't have a dominant allele for yellow peas. 19. The mathematical chance that something will happen is known as..... A) Chance. B) Luck. C) Probability. D) None of above. Show Answer Correct Answer: C) Probability. 20. Mendel studied pea traits including all EXCEPT A) Flower position on stems. B) Flower color. C) Pea shape. D) Root growth. Show Answer Correct Answer: D) Root growth. 21. Turgor pressure can help plants move. Internal water pressure can cause- A) A wilted stem to return to an upright position. B) Leaves to fall off a tree in the autumn. C) The roots of a plant to grow downward. D) A seedling to be carried by the wind. Show Answer Correct Answer: A) A wilted stem to return to an upright position. 22. In a seed, the plumule grows into..... A) The branch. B) The shoot. C) The roots. D) The leaves. Show Answer Correct Answer: B) The shoot. 23. At the very beginning of seed germination how will the mass of a seed change? A) It stays the same. B) It will increase slightly. C) It will decrease. D) It will increase significantly. Show Answer Correct Answer: C) It will decrease. 24. What were the reasons Mendel selected the pea plant for his genetics experiments? Pick as many as apply. A) Few traits. B) Traits easy to observe. C) Grow quickly. D) All of these. Show Answer Correct Answer: D) All of these. 25. What is performance testing A) Testing the performance of an animal in the same conditions to other animal kept in the same condition. B) Testing how an animal would perform in a play!. C) Testing the performance of an animal in the same conditions to its offspring kept in the same condition. D) None of above. Show Answer Correct Answer: A) Testing the performance of an animal in the same conditions to other animal kept in the same condition. 26. If a pea plant's alleles for height are tt, what is true of its parents? A) Both parents were tall. B) Both parents were short. C) Both parents contributed a recessive allele. D) Both parents contributed a dominant allele. Show Answer Correct Answer: C) Both parents contributed a recessive allele. 27. If a plant is going towards water it is showing A) Negative hydrotropism. B) Positive hydrotropism. C) Positive Geotropism. D) Positive Solar Radiation. Show Answer Correct Answer: B) Positive hydrotropism. 28. The plants that Gregor Mendel crosses to produce the F1 generation would be referred to as A) P1 and P. B) P1 and P3. C) P1 and P5. D) P1 and P2. Show Answer Correct Answer: D) P1 and P2. 29. What is this definition of: determining differences in the genotype of an individual organism by examining its DNA & comparing it to a reference sequence of another organisms sequence. A) Genetic engineering. B) Phototyping. C) Genotyping. D) Progeny testing. Show Answer Correct Answer: C) Genotyping. 30. The physical appearance or the way a gene looks is known as it's..... A) Genotype. B) Allele. C) Gene. D) Phenotype. Show Answer Correct Answer: D) Phenotype. ← PreviousNext →Related QuizzesPlant QuizzesAgriculture QuizzesPlant Genetics Quiz 1Plant Genetics Quiz 3Principles Of Genetics Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books