first quarter quiz_grade eight science.pptx

grade 8 science quiz

1. QUIZ IN SCIENCE 8 Mendelian patterns of inheritance

2. Test I Directions: Choose the letter of the correct answer and write it on your answer sheet.

3. 1. Who is known as the Father of Genetics? A. Charles Darwin B. Gregor Mendel C. Watson and Crick D. Louis Pasteur

4. 2. What did Mendel use for his experiments on inheritance? A. Fruit Flies B. Pea Plants C. Corn D. Bacteria

5. 3. A dominant allele is represented by: A. Lowercase Letter B. A Symbol C. An Uppercase Letter D. A Number

6. 4. Which genotype is homozygous dominant? A. Tt B. TT C. tt D. TtT

7. 5. What does the term “phenotype” refer to? A. Genetic makeup B. Physical expression of traits C. Type of protein D. DNA sequence

8. 6. In Mendel’s monohybrid cross, the F2 generation showed what phenotypic ratio? A. 3:1 B. 1:2:1 C. 9:3:3:1 D. 2:2

9. 7. If a trait is controlled by a recessive allele, which genotype will show the trait? A. AA B. Aa C. aa D. aA

10. 7. Which law explains that alleles separate during the formation of gametes? A. Law of Independent Assortment B. Law of Segregation C. Law of Dominance D. Law of Probability

11. 8. Which of the following is a dominant trait in pea plants according to Mendel's experiments? A. White flowers B. Green peas C. Tall stem D. Wrinkled seeds

12. 9. A homozygous dominant individual is crossed with a homozygous recessive. What will be the genotype of the offspring? A. All homozygous dominant B. All heterozygous C. 50% heterozygous, 50% homozygous D. All homozygous recessive

13. 10. The Law of Segregation states that: A. Alleles pair independently of one another B. Traits are blended in offspring C. Each individual has two alleles, and they separate during gamete formation D. Only dominant traits are inherited

14. Test II Directions: Solve the following genetic problems. Show your solutions using the Punnett Square.

15. 1. If a heterozygous tall plant is crossed with a short plant, what is the probability of getting a tall plant?

16. 2. What type of parents (genotype) will have a probability of producing 50% of both traits?

17. 3. A purebred tall pea plant is crossed with a short pea plant. What is the phenotype, genotype, phenotypic ratio and genotypic ratio of the F1?