Mendelian Genetics QuizVersion en ligne Test your knowledge on Mendelian genetics with this fun quiz game! par Criscelle Colis 1 What is the basic unit of heredity in Mendelian genetics? a Chromosome b RNA c DNA d Gene 2 Who is known as the father of genetics? a Gregor Mendel b Charles Darwin c James Watson d Louis Pasteur 3 What does a dominant allele do? a Is always expressed b Is never expressed c Only affects males d Masks the effect of a recessive allele 4 What is a homozygous genotype? a One dominant allele b Two identical alleles for a trait c Two different alleles d One recessive allele 5 What is the purpose of a Punnett square? a To analyze mutations b To measure gene expression c To predict offspring genotypes d To study evolution 6 What is the genotype of a plant with one dominant and one recessive allele? a Homozygous recessive b Homozygous dominant c Polygenic d Heterozygous 7 What organism did Mendel use for his experiments? a Pea plant b Fruit fly c Mouse d Corn 8 A dominant allele is represented by: a A lowercase letter (e.g., a) b Two identical letters c A capital letter (e.g., A) d A slash (/) 9 What is the term for the genetic makeup of an organism? a Phenotype b Genotype c Traits d Allele 10 Which term describes the physical appearance of a trait? a Phenotype b Genotype c Dominant d Recessive 11 What would be the genotype of a heterozygous individual for a trait? a aa b AA c aA d Aa 12 If tall (T) is dominant over short (t), what is the phenotype of a Tt plant? a Short b Tall c Medium d No Height 13 According to Mendel, how many alleles control a trait? a One b Two c Three d Four 14 If yellow (Y) is dominant and green (y) is recessive, what is the phenotype of a yy genotype? a Green b Yellow c Mixed d Blue 15 What is the chance of getting a homozygous recessive offspring (aa) from Aa x Aa cross? a 75% b 20% c 25% d 50% 16 A tool used to determine the possible outcomes of genetic crosses is called a: a Microscope b Punnett square c Petri dish d Test tube 17 What is the probability of producing a heterozygous (Aa) offspring from AA x aa? a 0% b 25% c 75% d 100% 18 Which of the following traits did Mendel NOT study in pea plants? a Blood type b Flower color c Seed shape d Pod color 19 If black fur (B) is dominant over white fur (b), which genotype will produce white fur? a bb b BB c Bb d bB 20 Why did Mendel choose pea plants for his experiments? a They were difficult to grow b They could talk back c They had one gene only d They had easily observable traits and could self-pollinate
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